1; RUN: opt < %s -basicaa -globals-aa -gvn -instcombine -S -enable-unsafe-globalsmodref-alias-results | FileCheck %s
2;
3; Note that this test relies on an unsafe feature of GlobalsModRef. While this
4; test is correct and safe, GMR's technique for handling this isn't generally.
5
6@G = internal global i32* null		; <i32**> [#uses=3]
7
8declare i8* @malloc(i32)
9define void @test() {
10	%a = call i8* @malloc(i32 4)
11        %A = bitcast i8* %a to i32*
12	store i32* %A, i32** @G
13	ret void
14}
15
16define i32 @test1(i32* %P) {
17; CHECK: ret i32 0
18	%g1 = load i32*, i32** @G		; <i32*> [#uses=2]
19	%h1 = load i32, i32* %g1		; <i32> [#uses=1]
20	store i32 123, i32* %P
21	%g2 = load i32*, i32** @G		; <i32*> [#uses=0]
22	%h2 = load i32, i32* %g1		; <i32> [#uses=1]
23	%X = sub i32 %h1, %h2		; <i32> [#uses=1]
24	ret i32 %X
25}
26