1; RUN: opt < %s -instcombine -S | FileCheck %s
2
3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
4target triple = "x86_64-apple-darwin10.0"
5
6declare noalias i8* @malloc(i64) nounwind
7declare void @free(i8*)
8
9; PR5130
10define i1 @test1() {
11  %A = call noalias i8* @malloc(i64 4) nounwind
12  %B = icmp eq i8* %A, null
13  store i8 0, i8* %A
14
15  call void @free(i8* %A)
16  ret i1 %B
17
18; CHECK-LABEL: @test1(
19; CHECK: ret i1 false
20}
21
22; CHECK-LABEL: @test2(
23define noalias i8* @test2() nounwind {
24entry:
25; CHECK: @malloc
26  %A = call noalias i8* @malloc(i64 4) nounwind
27; CHECK: icmp eq
28  %tobool = icmp eq i8* %A, null
29; CHECK: br i1
30  br i1 %tobool, label %return, label %if.end
31
32if.end:
33; CHECK: store
34  store i8 7, i8* %A
35  br label %return
36
37return:
38; CHECK: phi
39  %retval.0 = phi i8* [ %A, %if.end ], [ null, %entry ]
40  ret i8* %retval.0
41}
42