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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=mem2reg -S -o - < %s | FileCheck %s
declare void @llvm.assume(i1)
declare void @llvm.lifetime.start.p0(i64 %size, ptr nocapture %ptr)
declare void @llvm.lifetime.end.p0(i64 %size, ptr nocapture %ptr)
define void @positive_assume_uses(ptr %arg) {
; CHECK-LABEL: @positive_assume_uses(
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "nonnull"(ptr [[ARG:%.*]]), "ignore"(ptr undef, i64 2) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(ptr undef, i64 8), "nonnull"(ptr [[ARG]]) ]
; CHECK-NEXT: ret void
;
%A = alloca i32
call void @llvm.assume(i1 true) ["nonnull"(ptr %arg), "align"(ptr %A, i64 2)]
store i32 1, ptr %A
call void @llvm.assume(i1 true) ["align"(ptr %A, i64 8), "nonnull"(ptr %arg)]
ret void
}
define void @negative_assume_condition_use() {
; CHECK-LABEL: @negative_assume_condition_use(
; CHECK-NEXT: [[A:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[CND:%.*]] = icmp eq ptr [[A]], null
; CHECK-NEXT: call void @llvm.assume(i1 [[CND]])
; CHECK-NEXT: store i32 1, ptr [[A]], align 4
; CHECK-NEXT: ret void
;
%A = alloca i32
%cnd = icmp eq ptr %A, null
call void @llvm.assume(i1 %cnd)
store i32 1, ptr %A
ret void
}
define void @positive_multiple_assume_uses() {
; CHECK-LABEL: @positive_multiple_assume_uses(
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(ptr undef, i64 8), "ignore"(ptr undef, i64 16) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(ptr undef), "ignore"(ptr undef, i64 2) ]
; CHECK-NEXT: ret void
;
%A = alloca {i8, i16}
call void @llvm.assume(i1 true) ["align"(ptr %A, i64 8), "align"(ptr %A, i64 16)]
store {i8, i16} zeroinitializer, ptr %A
call void @llvm.assume(i1 true) ["nonnull"(ptr %A), "align"(ptr %A, i64 2)]
ret void
}
define void @positive_gep_assume_uses() {
; CHECK-LABEL: @positive_gep_assume_uses(
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(ptr undef, i64 8), "ignore"(ptr undef, i64 16) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(ptr undef), "ignore"(ptr undef, i64 2) ]
; CHECK-NEXT: ret void
;
%A = alloca {i8, i16}
%B = getelementptr {i8, i16}, ptr %A, i32 0, i32 0
call void @llvm.lifetime.start.p0(i64 2, ptr %B)
call void @llvm.assume(i1 true) ["align"(ptr %B, i64 8), "align"(ptr %B, i64 16)]
store {i8, i16} zeroinitializer, ptr %A
call void @llvm.lifetime.end.p0(i64 2, ptr %B)
call void @llvm.assume(i1 true) ["nonnull"(ptr %B), "align"(ptr %B, i64 2)]
ret void
}
define void @positive_mixed_assume_uses() {
; CHECK-LABEL: @positive_mixed_assume_uses(
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(ptr undef), "ignore"(ptr undef, i64 8), "ignore"(ptr undef, i64 16) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(ptr undef), "ignore"(ptr undef, i64 2), "ignore"(ptr undef) ]
; CHECK-NEXT: call void @llvm.assume(i1 true) [ "ignore"(ptr undef), "ignore"(ptr undef, i64 2), "ignore"(ptr undef) ]
; CHECK-NEXT: ret void
;
%A = alloca i8
call void @llvm.lifetime.start.p0(i64 2, ptr %A)
call void @llvm.assume(i1 true) ["nonnull"(ptr %A), "align"(ptr %A, i64 8), "align"(ptr %A, i64 16)]
store i8 1, ptr %A
call void @llvm.lifetime.end.p0(i64 2, ptr %A)
call void @llvm.assume(i1 true) ["nonnull"(ptr %A), "align"(ptr %A, i64 2), "nonnull"(ptr %A)]
call void @llvm.assume(i1 true) ["nonnull"(ptr %A), "align"(ptr %A, i64 2), "nonnull"(ptr %A)]
ret void
}
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