1; RUN: opt < %s -basicaa -globalsmodref-aa -gvn -instcombine -S | FileCheck %s
2
3@G = internal global i32* null		; <i32**> [#uses=3]
4
5declare i8* @malloc(i32)
6define void @test() {
7	%a = call i8* @malloc(i32 4)
8        %A = bitcast i8* %a to i32*
9	store i32* %A, i32** @G
10	ret void
11}
12
13define i32 @test1(i32* %P) {
14; CHECK: ret i32 0
15	%g1 = load i32*, i32** @G		; <i32*> [#uses=2]
16	%h1 = load i32, i32* %g1		; <i32> [#uses=1]
17	store i32 123, i32* %P
18	%g2 = load i32*, i32** @G		; <i32*> [#uses=0]
19	%h2 = load i32, i32* %g1		; <i32> [#uses=1]
20	%X = sub i32 %h1, %h2		; <i32> [#uses=1]
21	ret i32 %X
22}
23