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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=instsimplify -opaque-pointers < %s | FileCheck %s
declare void @zero_args()
declare void @two_args(ptr, ptr)
; TODO: Could be non-null based on call-site attributes.
define i1 @test_zero_args_nonnull(ptr %p) {
; CHECK-LABEL: @test_zero_args_nonnull(
; CHECK-NEXT: call void @zero_args(ptr noundef nonnull [[P:%.*]])
; CHECK-NEXT: [[C:%.*]] = icmp ne ptr [[P]], null
; CHECK-NEXT: ret i1 [[C]]
;
call void @zero_args(ptr nonnull noundef %p)
%c = icmp ne ptr %p, null
ret i1 %c
}
define i1 @test_zero_args_maybe_null(ptr %p) {
; CHECK-LABEL: @test_zero_args_maybe_null(
; CHECK-NEXT: call void @zero_args(ptr [[P:%.*]])
; CHECK-NEXT: [[C:%.*]] = icmp ne ptr [[P]], null
; CHECK-NEXT: ret i1 [[C]]
;
call void @zero_args(ptr %p)
%c = icmp ne ptr %p, null
ret i1 %c
}
; TODO: Could be non-null based on call-site attributes.
define i1 @test_two_args_nonnull(ptr %p) {
; CHECK-LABEL: @test_two_args_nonnull(
; CHECK-NEXT: call void @two_args(ptr noundef nonnull [[P:%.*]])
; CHECK-NEXT: [[C:%.*]] = icmp ne ptr [[P]], null
; CHECK-NEXT: ret i1 [[C]]
;
call void @two_args(ptr nonnull noundef %p)
%c = icmp ne ptr %p, null
ret i1 %c
}
define i1 @test_two_args_maybe_null(ptr %p) {
; CHECK-LABEL: @test_two_args_maybe_null(
; CHECK-NEXT: call void @two_args(ptr [[P:%.*]])
; CHECK-NEXT: [[C:%.*]] = icmp ne ptr [[P]], null
; CHECK-NEXT: ret i1 [[C]]
;
call void @two_args(ptr %p)
%c = icmp ne ptr %p, null
ret i1 %c
}
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