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