forked from OSchip/llvm-project
28 lines
857 B
LLVM
28 lines
857 B
LLVM
; RUN: opt -S -globals-aa -function-attrs < %s | FileCheck %s
|
|
; RUN: opt -S -O3 < %s | FileCheck %s
|
|
|
|
; Apart from checking for the direct cause of the bug, we also check
|
|
; if any problematic aliasing rules have accidentally snuck into -O3.
|
|
;
|
|
; Since the "abc" operand bundle is not a special operand bundle that
|
|
; LLVM knows about, all of the stores and loads in @test below have to
|
|
; stay.
|
|
|
|
declare void @foo() readnone
|
|
|
|
; CHECK-LABEL: define i8* @test(i8* %p)
|
|
; CHECK: %a = alloca i8*, align 8
|
|
; CHECK: store i8* %p, i8** %a, align 8
|
|
; CHECK: call void @foo() [ "abc"(i8** %a) ]
|
|
; CHECK: %reload = load i8*, i8** %a, align 8
|
|
; CHECK: ret i8* %reload
|
|
; CHECK: }
|
|
|
|
define i8* @test(i8* %p) {
|
|
%a = alloca i8*, align 8
|
|
store i8* %p, i8** %a, align 8
|
|
call void @foo() ["abc" (i8** %a)]
|
|
%reload = load i8*, i8** %a, align 8
|
|
ret i8* %reload
|
|
}
|