third_party/llvm-7.0/llvm/test/Analysis/GlobalsModRef/modreftest.ll

; 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
}