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; RUN: opt < %s -basicaa -globals-aa -gvn -S | FileCheck %s
@X = internal global i32 4 ; <i32*> [#uses=2]
define i32 @test(i32* %P) {
; CHECK: @test
; CHECK-NEXT: store i32 12, i32* @X
; CHECK-NEXT: call void @doesnotmodX()
; CHECK-NEXT: ret i32 12
store i32 12, i32* @X
call void @doesnotmodX( )
%V = load i32, i32* @X ; <i32> [#uses=1]
ret i32 %V
}
define void @doesnotmodX() {
ret void
}
declare void @InaccessibleMemOnlyFunc( ) #0
declare void @InaccessibleMemOrArgMemOnlyFunc( ) #1
define i32 @test2(i32* %P) {
; CHECK: @test2
; CHECK-NEXT: store i32 12, i32* @X
; CHECK-NEXT: call void @InaccessibleMemOnlyFunc()
; CHECK-NEXT: call void @InaccessibleMemOrArgMemOnlyFunc()
; CHECK-NOT: load i32
; CHECK-NEXT: ret i32 12
store i32 12, i32* @X
call void @InaccessibleMemOnlyFunc( )
call void @InaccessibleMemOrArgMemOnlyFunc( )
%V = load i32, i32* @X ; <i32> [#uses=1]
ret i32 %V
}
attributes #0 = { inaccessiblememonly }
attributes #1 = { inaccessiblemem_or_argmemonly }
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