llvm-project/llvm/test/Transforms/Mem2Reg/2002-05-01-ShouldNotPromote...

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; This input caused the mem2reg pass to die because it was trying to promote
; the %r alloca, even though it is invalid to do so in this case!
;
; RUN: opt %s -mem2reg
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define void @test() {
%r = alloca i32 ; <i32*> [#uses=2]
store i32 4, i32* %r
store i32* %r, i32** null
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ret void
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}