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llvm-mirror/test/Analysis/GlobalsModRef/modreftest.ll

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; RUN: opt < %s -basicaa -globalsmodref-aa -gvn -S | FileCheck %s
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@X = internal global i32 4 ; <i32*> [#uses=2]
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define i32 @test(i32* %P) {
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; CHECK: @test
; CHECK-NEXT: store i32 12, i32* @X
; CHECK-NEXT: call void @doesnotmodX()
; CHECK-NEXT: ret i32 12
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store i32 12, i32* @X
call void @doesnotmodX( )
%V = load i32* @X ; <i32> [#uses=1]
ret i32 %V
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}
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define void @doesnotmodX() {
ret void
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}