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