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

19 lines
407 B
LLVM

; RUN: opt < %s -basic-aa -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
}