16 lines
498 B
LLVM
16 lines
498 B
LLVM
; RUN: opt -S -gvn < %s | FileCheck %s
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; RUN: opt -S -newgvn < %s | FileCheck %s
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; RUN: opt -S -O3 < %s | FileCheck %s
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; This test check if optimizer is not proving equality based on mustalias
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; CHECK-LABEL: define void @dontProveEquality(i8* %a)
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define void @dontProveEquality(i8* %a) {
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%b = call i8* @llvm.invariant.group.barrier(i8* %a)
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%r = i1 icmp eq i8* %b, i8* %a
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;CHECK: call void @use(%r)
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call void @use(%r)
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}
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declare void @use(i1)
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declare i8* @llvm.invariant.group.barrier(i8 *)
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