[clang][CodeGen] Implicit Conversion Sanitizer: discover the world of CompoundAssign operators

Summary:
As reported by @regehr (thanks!) on twitter (https://twitter.com/johnregehr/status/1057681496255815686),
we (me) has completely forgot about the binary assignment operator.
In AST, it isn't represented as separate `ImplicitCastExpr`'s,
but as a single `CompoundAssignOperator`, that does all the casts internally.
Which means, out of these two, only the first one is diagnosed:
```
auto foo() {
    unsigned char c = 255;
    c = c + 1;
    return c;
}
auto bar() {
    unsigned char c = 255;
    c += 1;
    return c;
}
```
https://godbolt.org/z/JNyVc4

This patch does handle the `CompoundAssignOperator`:
```
int main() {
  unsigned char c = 255;
  c += 1;
  return c;
}
```
```
$ ./bin/clang -g -fsanitize=integer /tmp/test.c && ./a.out
/tmp/test.c:3:5: runtime error: implicit conversion from type 'int' of value 256 (32-bit, signed) to type 'unsigned char' changed the value to 0 (8-bit, unsigned)
    #0 0x2392b8 in main /tmp/test.c:3:5
    #1 0x7fec4a612b16 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x22b16)
    #2 0x214029 in _start (/build/llvm-build-GCC-release/a.out+0x214029)
```

However, the pre/post increment/decrement is still not handled.

Reviewers: rsmith, regehr, vsk, rjmccall, #sanitizers

Reviewed By: rjmccall

Subscribers: mclow.lists, cfe-commits, regehr

Tags: #clang, #sanitizers

Differential Revision: https://reviews.llvm.org/D53949

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@347258 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2561 insertions, 0 deletions

diff --git a/test/CodeGen/catch-implicit-integer-sign-changes-CompoundAssignOperator.c b/test/CodeGen/catch-implicit-integer-sign-changes-CompoundAssignOperator.c
new file mode 100644
index 0000000000..9a87760896
--- /dev/null
+++ b/test/CodeGen/catch-implicit-integer-sign-changes-CompoundAssignOperator.c
@@ -0,0 +1,2561 @@
+// RUN: %clang_cc1 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s --check-prefix=CHECK
+
+// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fno-sanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-NORECOVER,CHECK-SANITIZE-UNREACHABLE
+// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-recover=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-ANYRECOVER,CHECK-SANITIZE-RECOVER
+// RUN: %clang_cc1 -fsanitize=implicit-integer-sign-change -fsanitize-trap=implicit-integer-sign-change -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck %s -implicit-check-not="call void @__ubsan_handle_implicit_conversion" --check-prefixes=CHECK,CHECK-SANITIZE,CHECK-SANITIZE-TRAP,CHECK-SANITIZE-UNREACHABLE
+
+// LHS can be of 2 types: unsigned char and signed char
+// RHS can be of 4 types: unsigned char, signed char, unsigned int, signed int.
+// Therefore there are total of 8 tests per group.
+
+// Also there are total of 10 compound operators (+=, -=, *=, /=, %=, <<=, >>=, &=, ^=, |=)
+
+// CHECK-SANITIZE-ANYRECOVER: @[[INT:.*]] = {{.*}} c"'int'\00" }
+// CHECK-SANITIZE-ANYRECOVER: @[[UNSIGNED_CHAR:.*]] = {{.*}} c"'unsigned char'\00" }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_100_SIGN_CHANGE:.*]] = {{.*}}, i32 100, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_200_SIGN_CHANGE:.*]] = {{.*}}, i32 200, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_400_SIGN_CHANGE:.*]] = {{.*}}, i32 400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[SIGNED_CHAR:.*]] = {{.*}} c"'signed char'\00" }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_500_SIGN_CHANGE:.*]] = {{.*}}, i32 500, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_600_SIGN_CHANGE:.*]] = {{.*}}, i32 600, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[UNSIGNED_INT:.*]] = {{.*}} c"'unsigned int'\00" }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_700_SIGN_CHANGE:.*]] = {{.*}}, i32 700, i32 10 }, {{.*}}* @[[UNSIGNED_INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_800_SIGN_CHANGE:.*]] = {{.*}}, i32 800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_900_SIGN_CHANGE:.*]] = {{.*}}, i32 900, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_1000_SIGN_CHANGE:.*]] = {{.*}}, i32 1000, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_1200_SIGN_CHANGE:.*]] = {{.*}}, i32 1200, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_1300_SIGN_CHANGE:.*]] = {{.*}}, i32 1300, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_1400_SIGN_CHANGE:.*]] = {{.*}}, i32 1400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_1500_SIGN_CHANGE:.*]] = {{.*}}, i32 1500, i32 10 }, {{.*}}* @[[UNSIGNED_INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_1600_SIGN_CHANGE:.*]] = {{.*}}, i32 1600, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_1700_SIGN_CHANGE:.*]] = {{.*}}, i32 1700, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_1800_SIGN_CHANGE:.*]] = {{.*}}, i32 1800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2000_SIGN_CHANGE:.*]] = {{.*}}, i32 2000, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2100_SIGN_CHANGE:.*]] = {{.*}}, i32 2100, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2200_SIGN_CHANGE:.*]] = {{.*}}, i32 2200, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2300_SIGN_CHANGE:.*]] = {{.*}}, i32 2300, i32 10 }, {{.*}}* @[[UNSIGNED_INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2400_SIGN_CHANGE:.*]] = {{.*}}, i32 2400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2500_SIGN_CHANGE:.*]] = {{.*}}, i32 2500, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2600_SIGN_CHANGE:.*]] = {{.*}}, i32 2600, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2800_SIGN_CHANGE:.*]] = {{.*}}, i32 2800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_2900_SIGN_CHANGE:.*]] = {{.*}}, i32 2900, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3000_SIGN_CHANGE:.*]] = {{.*}}, i32 3000, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3100_SIGN_CHANGE:.*]] = {{.*}}, i32 3100, i32 10 }, {{.*}}* @[[UNSIGNED_INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3200_SIGN_CHANGE:.*]] = {{.*}}, i32 3200, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3300_SIGN_CHANGE:.*]] = {{.*}}, i32 3300, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3400_SIGN_CHANGE:.*]] = {{.*}}, i32 3400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3600_SIGN_CHANGE:.*]] = {{.*}}, i32 3600, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3700_SIGN_CHANGE:.*]] = {{.*}}, i32 3700, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3800_SIGN_CHANGE:.*]] = {{.*}}, i32 3800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_3900_SIGN_CHANGE:.*]] = {{.*}}, i32 3900, i32 10 }, {{.*}}* @[[UNSIGNED_INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4000_SIGN_CHANGE:.*]] = {{.*}}, i32 4000, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4100_SIGN_CHANGE:.*]] = {{.*}}, i32 4100, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4200_SIGN_CHANGE:.*]] = {{.*}}, i32 4200, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4300_SIGN_CHANGE:.*]] = {{.*}}, i32 4300, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4400_SIGN_CHANGE:.*]] = {{.*}}, i32 4400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4500_SIGN_CHANGE:.*]] = {{.*}}, i32 4500, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4600_SIGN_CHANGE:.*]] = {{.*}}, i32 4600, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4700_SIGN_CHANGE:.*]] = {{.*}}, i32 4700, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4800_SIGN_CHANGE:.*]] = {{.*}}, i32 4800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_4900_SIGN_CHANGE:.*]] = {{.*}}, i32 4900, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5000_SIGN_CHANGE:.*]] = {{.*}}, i32 5000, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5100_SIGN_CHANGE:.*]] = {{.*}}, i32 5100, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5200_SIGN_CHANGE:.*]] = {{.*}}, i32 5200, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5300_SIGN_CHANGE:.*]] = {{.*}}, i32 5300, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5400_SIGN_CHANGE:.*]] = {{.*}}, i32 5400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5500_SIGN_CHANGE:.*]] = {{.*}}, i32 5500, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5600_SIGN_CHANGE:.*]] = {{.*}}, i32 5600, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5700_SIGN_CHANGE:.*]] = {{.*}}, i32 5700, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_5800_SIGN_CHANGE:.*]] = {{.*}}, i32 5800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6000_SIGN_CHANGE:.*]] = {{.*}}, i32 6000, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6100_SIGN_CHANGE:.*]] = {{.*}}, i32 6100, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6200_SIGN_CHANGE:.*]] = {{.*}}, i32 6200, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6300_SIGN_CHANGE:.*]] = {{.*}}, i32 6300, i32 10 }, {{.*}}* @[[UNSIGNED_INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6400_SIGN_CHANGE:.*]] = {{.*}}, i32 6400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6500_SIGN_CHANGE:.*]] = {{.*}}, i32 6500, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6600_SIGN_CHANGE:.*]] = {{.*}}, i32 6600, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6800_SIGN_CHANGE:.*]] = {{.*}}, i32 6800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_6900_SIGN_CHANGE:.*]] = {{.*}}, i32 6900, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7000_SIGN_CHANGE:.*]] = {{.*}}, i32 7000, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7100_SIGN_CHANGE:.*]] = {{.*}}, i32 7100, i32 10 }, {{.*}}* @[[UNSIGNED_INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7200_SIGN_CHANGE:.*]] = {{.*}}, i32 7200, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7300_SIGN_CHANGE:.*]] = {{.*}}, i32 7300, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7400_SIGN_CHANGE:.*]] = {{.*}}, i32 7400, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7600_SIGN_CHANGE:.*]] = {{.*}}, i32 7600, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[UNSIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7700_SIGN_CHANGE:.*]] = {{.*}}, i32 7700, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7800_SIGN_CHANGE:.*]] = {{.*}}, i32 7800, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_7900_SIGN_CHANGE:.*]] = {{.*}}, i32 7900, i32 10 }, {{.*}}* @[[UNSIGNED_INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+// CHECK-SANITIZE-ANYRECOVER: @[[LINE_8000_SIGN_CHANGE:.*]] = {{.*}}, i32 8000, i32 10 }, {{.*}}* @[[INT]], {{.*}}* @[[SIGNED_CHAR]], i8 3 }
+
+//----------------------------------------------------------------------------//
+// Compound add operator.                                                     //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_add_signed_char_unsigned_char
+void unsigned_char_add_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = add nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 100
+  (*LHS) += RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_add_signed_char_signed_char
+void unsigned_char_add_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = add nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 200
+  (*LHS) += RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_add_signed_char_unsigned_int
+void unsigned_char_add_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+#line 300
+  (*LHS) += RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_add_signed_char_signed_int
+void unsigned_char_add_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = add nsw i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 400
+  (*LHS) += RHS;
+}
+
+// CHECK-LABEL: @signed_char_add_unsigned_char
+void signed_char_add_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = add nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 500
+  (*LHS) += RHS;
+}
+
+// CHECK-LABEL: @signed_char_add_signed_char
+void signed_char_add_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = add nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 600
+  (*LHS) += RHS;
+}
+
+// CHECK-LABEL: @signed_char_add_signed_char_unsigned_int
+void signed_char_add_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = add i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 false, %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 700
+  (*LHS) += RHS;
+}
+
+// CHECK-LABEL: @signed_char_add_signed_char_signed_int
+void signed_char_add_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = add nsw i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 800
+  (*LHS) += RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound subtract operator.                                                //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_sub_signed_char_unsigned_char
+void unsigned_char_sub_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sub nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 900
+  (*LHS) -= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_sub_signed_char_signed_char
+void unsigned_char_sub_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sub nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 1000
+  (*LHS) -= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_sub_signed_char_unsigned_int
+void unsigned_char_sub_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+#line 1100
+  (*LHS) -= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_sub_signed_char_signed_int
+void unsigned_char_sub_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sub nsw i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 1200
+  (*LHS) -= RHS;
+}
+
+// CHECK-LABEL: @signed_char_sub_unsigned_char
+void signed_char_sub_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sub nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 1300
+  (*LHS) -= RHS;
+}
+
+// CHECK-LABEL: @signed_char_sub_signed_char
+void signed_char_sub_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sub nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 1400
+  (*LHS) -= RHS;
+}
+
+// CHECK-LABEL: @signed_char_sub_signed_char_unsigned_int
+void signed_char_sub_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sub i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 false, %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 1500
+  (*LHS) -= RHS;
+}
+
+// CHECK-LABEL: @signed_char_sub_signed_char_signed_int
+void signed_char_sub_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sub nsw i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 1600
+  (*LHS) -= RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound multiply operator.                                                //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_mul_signed_char_unsigned_char
+void unsigned_char_mul_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = mul nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 1700
+  (*LHS) *= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_mul_signed_char_signed_char
+void unsigned_char_mul_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = mul nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_1800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 1800
+  (*LHS) *= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_mul_signed_char_unsigned_int
+void unsigned_char_mul_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+#line 1900
+  (*LHS) *= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_mul_signed_char_signed_int
+void unsigned_char_mul_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = mul nsw i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2000
+  (*LHS) *= RHS;
+}
+
+// CHECK-LABEL: @signed_char_mul_unsigned_char
+void signed_char_mul_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = mul nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2100
+  (*LHS) *= RHS;
+}
+
+// CHECK-LABEL: @signed_char_mul_signed_char
+void signed_char_mul_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = mul nsw i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2200
+  (*LHS) *= RHS;
+}
+
+// CHECK-LABEL: @signed_char_mul_signed_char_unsigned_int
+void signed_char_mul_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = mul i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 false, %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2300
+  (*LHS) *= RHS;
+}
+
+// CHECK-LABEL: @signed_char_mul_signed_char_signed_int
+void signed_char_mul_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = mul nsw i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2400
+  (*LHS) *= RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound divide operator.                                                  //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_div_signed_char_unsigned_char
+void unsigned_char_div_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sdiv i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2500
+  (*LHS) /= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_div_signed_char_signed_char
+void unsigned_char_div_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sdiv i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2600
+  (*LHS) /= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_div_signed_char_unsigned_int
+void unsigned_char_div_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+#line 2700
+  (*LHS) /= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_div_signed_char_signed_int
+void unsigned_char_div_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sdiv i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2800
+  (*LHS) /= RHS;
+}
+
+// CHECK-LABEL: @signed_char_div_unsigned_char
+void signed_char_div_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sdiv i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_2900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 2900
+  (*LHS) /= RHS;
+}
+
+// CHECK-LABEL: @signed_char_div_signed_char
+void signed_char_div_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sdiv i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3000
+  (*LHS) /= RHS;
+}
+
+// CHECK-LABEL: @signed_char_div_signed_char_unsigned_int
+void signed_char_div_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = udiv i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 false, %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3100
+  (*LHS) /= RHS;
+}
+
+// CHECK-LABEL: @signed_char_div_signed_char_signed_int
+void signed_char_div_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = sdiv i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3200
+  (*LHS) /= RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound remainder operator.                                               //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_rem_signed_char_unsigned_char
+void unsigned_char_rem_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = srem i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3300
+  (*LHS) %= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_rem_signed_char_signed_char
+void unsigned_char_rem_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = srem i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3400
+  (*LHS) %= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_rem_signed_char_unsigned_int
+void unsigned_char_rem_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+#line 3500
+  (*LHS) %= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_rem_signed_char_signed_int
+void unsigned_char_rem_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = srem i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3600
+  (*LHS) %= RHS;
+}
+
+// CHECK-LABEL: @signed_char_rem_unsigned_char
+void signed_char_rem_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = srem i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3700
+  (*LHS) %= RHS;
+}
+
+// CHECK-LABEL: @signed_char_rem_signed_char
+void signed_char_rem_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = srem i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3800
+  (*LHS) %= RHS;
+}
+
+// CHECK-LABEL: @signed_char_rem_signed_char_unsigned_int
+void signed_char_rem_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = urem i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 false, %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_3900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 3900
+  (*LHS) %= RHS;
+}
+
+// CHECK-LABEL: @signed_char_rem_signed_char_signed_int
+void signed_char_rem_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = srem i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4000
+  (*LHS) %= RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound left-shift operator.                                              //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_shl_signed_char_unsigned_char
+void unsigned_char_shl_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = shl i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4100
+  (*LHS) <<= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_shl_signed_char_signed_char
+void unsigned_char_shl_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = shl i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4200
+  (*LHS) <<= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_shl_signed_char_unsigned_int
+void unsigned_char_shl_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = shl i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4300
+  (*LHS) <<= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_shl_signed_char_signed_int
+void unsigned_char_shl_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = shl i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4400
+  (*LHS) <<= RHS;
+}
+
+// CHECK-LABEL: @signed_char_shl_unsigned_char
+void signed_char_shl_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = shl i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4500
+  (*LHS) <<= RHS;
+}
+
+// CHECK-LABEL: @signed_char_shl_signed_char
+void signed_char_shl_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = shl i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4600
+  (*LHS) <<= RHS;
+}
+
+// CHECK-LABEL: @signed_char_shl_signed_char_unsigned_int
+void signed_char_shl_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = shl i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4700
+  (*LHS) <<= RHS;
+}
+
+// CHECK-LABEL: @signed_char_shl_signed_char_signed_int
+void signed_char_shl_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = shl i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4800
+  (*LHS) <<= RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound right-shift operator.                                             //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_shr_signed_char_unsigned_char
+void unsigned_char_shr_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = ashr i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_4900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 4900
+  (*LHS) >>= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_shr_signed_char_signed_char
+void unsigned_char_shr_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = ashr i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5000
+  (*LHS) >>= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_shr_signed_char_unsigned_int
+void unsigned_char_shr_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = ashr i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5100
+  (*LHS) >>= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_shr_signed_char_signed_int
+void unsigned_char_shr_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = ashr i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5200
+  (*LHS) >>= RHS;
+}
+
+// CHECK-LABEL: @signed_char_shr_unsigned_char
+void signed_char_shr_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = ashr i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5300
+  (*LHS) >>= RHS;
+}
+
+// CHECK-LABEL: @signed_char_shr_signed_char
+void signed_char_shr_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = ashr i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5400
+  (*LHS) >>= RHS;
+}
+
+// CHECK-LABEL: @signed_char_shr_signed_char_unsigned_int
+void signed_char_shr_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = ashr i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5500
+  (*LHS) >>= RHS;
+}
+
+// CHECK-LABEL: @signed_char_shr_signed_char_signed_int
+void signed_char_shr_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = ashr i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5600
+  (*LHS) >>= RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound and operator.                                                     //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_and_signed_char_unsigned_char
+void unsigned_char_and_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = and i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5700
+  (*LHS) &= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_and_signed_char_signed_char
+void unsigned_char_and_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = and i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_5800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 5800
+  (*LHS) &= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_and_signed_char_unsigned_int
+void unsigned_char_and_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+#line 5900
+  (*LHS) &= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_and_signed_char_signed_int
+void unsigned_char_and_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = and i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6000
+  (*LHS) &= RHS;
+}
+
+// CHECK-LABEL: @signed_char_and_unsigned_char
+void signed_char_and_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = and i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6100
+  (*LHS) &= RHS;
+}
+
+// CHECK-LABEL: @signed_char_and_signed_char
+void signed_char_and_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = and i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6200
+  (*LHS) &= RHS;
+}
+
+// CHECK-LABEL: @signed_char_and_signed_char_unsigned_int
+void signed_char_and_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = and i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 false, %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6300
+  (*LHS) &= RHS;
+}
+
+// CHECK-LABEL: @signed_char_and_signed_char_signed_int
+void signed_char_and_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = and i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6400
+  (*LHS) &= RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound xor operator.                                                     //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_or_signed_char_unsigned_char
+void unsigned_char_or_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = or i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6500_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6500
+  (*LHS) |= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_or_signed_char_signed_char
+void unsigned_char_or_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = or i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6600
+  (*LHS) |= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_or_signed_char_unsigned_int
+void unsigned_char_or_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+#line 6700
+  (*LHS) |= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_or_signed_char_signed_int
+void unsigned_char_or_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = or i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6800
+  (*LHS) |= RHS;
+}
+
+// CHECK-LABEL: @signed_char_or_unsigned_char
+void signed_char_or_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = or i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_6900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 6900
+  (*LHS) |= RHS;
+}
+
+// CHECK-LABEL: @signed_char_or_signed_char
+void signed_char_or_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = or i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7000
+  (*LHS) |= RHS;
+}
+
+// CHECK-LABEL: @signed_char_or_signed_char_unsigned_int
+void signed_char_or_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = or i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 false, %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7100_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7100
+  (*LHS) |= RHS;
+}
+
+// CHECK-LABEL: @signed_char_or_signed_char_signed_int
+void signed_char_or_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = or i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7200_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7200
+  (*LHS) |= RHS;
+}
+
+//----------------------------------------------------------------------------//
+// Compound or operator.                                                      //
+//----------------------------------------------------------------------------//
+
+// CHECK-LABEL: @unsigned_char_xor_signed_char_unsigned_char
+void unsigned_char_xor_signed_char_unsigned_char(unsigned char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = xor i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7300_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7300
+  (*LHS) ^= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_xor_signed_char_signed_char
+void unsigned_char_xor_signed_char_signed_char(unsigned char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = xor i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7400_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7400
+  (*LHS) ^= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_xor_signed_char_unsigned_int
+void unsigned_char_xor_signed_char_unsigned_int(unsigned char *LHS, unsigned int RHS) {
+#line 7500
+  (*LHS) ^= RHS;
+}
+
+// CHECK-LABEL: @unsigned_char_xor_signed_char_signed_int
+void unsigned_char_xor_signed_char_signed_int(unsigned char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = zext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = xor i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], false, !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7600_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7600
+  (*LHS) ^= RHS;
+}
+
+// CHECK-LABEL: @signed_char_xor_unsigned_char
+void signed_char_xor_unsigned_char(signed char *LHS, unsigned char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = zext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = xor i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7700_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7700
+  (*LHS) ^= RHS;
+}
+
+// CHECK-LABEL: @signed_char_xor_signed_char
+void signed_char_xor_signed_char(signed char *LHS, signed char RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i8, align 1
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i8 %[[ARG1:.*]], i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHS:.*]] = load i8, i8* %[[RHSADDR]], align 1
+  // CHECK-NEXT: %[[RHSEXT:.*]] = sext i8 %[[RHS]] to i32
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = xor i32 %[[LHSEXT]], %[[RHSEXT]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7800_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7800
+  (*LHS) ^= RHS;
+}
+
+// CHECK-LABEL: @signed_char_xor_signed_char_unsigned_int
+void signed_char_xor_signed_char_unsigned_int(signed char *LHS, unsigned int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = xor i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 false, %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_7900_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 7900
+  (*LHS) ^= RHS;
+}
+
+// CHECK-LABEL: @signed_char_xor_signed_char_signed_int
+void signed_char_xor_signed_char_signed_int(signed char *LHS, signed int RHS) {
+  // CHECK: {
+  // CHECK-NEXT: entry:
+  // CHECK-NEXT: %[[ADDRESS:.*]] = alloca i8*, align 8
+  // CHECK-NEXT: %[[RHSADDR:.*]] = alloca i32, align 4
+  // CHECK-NEXT: store i8* %[[ARG0:.*]], i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: store i32 %[[ARG1:.*]], i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[RHS:.*]] = load i32, i32* %[[RHSADDR]], align 4
+  // CHECK-NEXT: %[[LHSADDR:.*]] = load i8*, i8** %[[ADDRESS]], align 8
+  // CHECK-NEXT: %[[LHS:.*]] = load i8, i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: %[[LHSEXT:.*]] = sext i8 %[[LHS]] to i32
+  // CHECK-NEXT: %[[SRC:.*]] = xor i32 %[[LHSEXT]], %[[RHS]]
+  // CHECK-NEXT: %[[DST:.*]] = trunc i32 %[[SRC]] to i8
+  // CHECK-SANITIZE-NEXT: %[[SRC_NEGATIVITYCHECK:.*]] = icmp slt i32 %[[SRC]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[DST_NEGATIVITYCHECK:.*]] = icmp slt i8 %[[DST]], 0, !nosanitize
+  // CHECK-SANITIZE-NEXT: %[[SIGNCHANGECHECK:.*]] = icmp eq i1 %[[SRC_NEGATIVITYCHECK]], %[[DST_NEGATIVITYCHECK]], !nosanitize
+  // CHECK-SANITIZE-NEXT: br i1 %[[SIGNCHANGECHECK]], label %[[CONT:.*]], label %[[HANDLER_IMPLICIT_CONVERSION:[^,]+]],{{.*}} !nosanitize
+  // CHECK-SANITIZE: [[HANDLER_IMPLICIT_CONVERSION]]:
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTSRC:.*]] = zext i32 %[[SRC]] to i64, !nosanitize
+  // CHECK-SANITIZE-ANYRECOVER-NEXT: %[[EXTDST:.*]] = zext i8 %[[DST]] to i64, !nosanitize
+  // CHECK-SANITIZE-NORECOVER-NEXT: call void @__ubsan_handle_implicit_conversion_abort(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_8000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-RECOVER-NEXT: call void @__ubsan_handle_implicit_conversion(i8* bitcast ({ {{{.*}}}, {{{.*}}}*, {{{.*}}}*, i8 }* @[[LINE_8000_SIGN_CHANGE]] to i8*), i64 %[[EXTSRC]], i64 %[[EXTDST]]){{.*}}, !nosanitize
+  // CHECK-SANITIZE-TRAP-NEXT: call void @llvm.trap(){{.*}}, !nosanitize
+  // CHECK-SANITIZE-UNREACHABLE-NEXT: unreachable, !nosanitize
+  // CHECK-SANITIZE: [[CONT]]:
+  // CHECK-NEXT: store i8 %[[DST]], i8* %[[LHSADDR]], align 1
+  // CHECK-NEXT: ret void
+  // CHECK-NEXT: }
+#line 8000
+  (*LHS) ^= RHS;
+}