1; RUN: opt -basicaa -memdep -mldst-motion -S < %s | FileCheck %s
2target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
3target triple = "x86_64-unknown-linux-gnu"
4
5@r = common global i32 0, align 4
6@s = common global i32 0, align 4
7
8; CHECK-LABEL: define void @test1(
9define void @test1(i1 %cmp, i32* noalias %p) {
10entry:
11  br i1 %cmp, label %if.then, label %if.else
12
13if.then:                                          ; preds = %entry
14  call void @may_throw()
15  %arrayidx = getelementptr inbounds i32, i32* %p, i64 1
16  %0 = load i32, i32* %arrayidx, align 4
17  store i32 %0, i32* @r, align 4
18  br label %if.end
19; CHECK:       call void @may_throw()
20; CHECK-NEXT:  %[[gep:.*]] = getelementptr inbounds i32, i32* %p, i64 1
21; CHECK-NEXT:  %[[load:.*]] = load i32, i32* %[[gep]], align 4
22; CHECK-NEXT:  store i32 %[[load]], i32* @r, align 4
23
24if.else:                                          ; preds = %entry
25  %arrayidx1 = getelementptr inbounds i32, i32* %p, i64 1
26  %1 = load i32, i32* %arrayidx1, align 4
27  store i32 %1, i32* @s, align 4
28  br label %if.end
29
30if.end:                                           ; preds = %if.else, %if.then
31  ret void
32}
33
34; CHECK-LABEL: define void @test2(
35define void @test2(i1 %cmp, i32* noalias %p) {
36entry:
37  br i1 %cmp, label %if.then, label %if.else
38
39if.then:                                          ; preds = %entry
40  %arrayidx = getelementptr inbounds i32, i32* %p, i64 1
41  store i32 1, i32* %arrayidx, align 4
42  call void @may_throw()
43; CHECK:       %[[gep:.*]] = getelementptr inbounds i32, i32* %p, i64 1
44; CHECK-NEXT:  store i32 1, i32* %[[gep]], align 4
45; CHECK-NEXT:  call void @may_throw()
46  br label %if.end
47
48if.else:                                          ; preds = %entry
49  %arrayidx1 = getelementptr inbounds i32, i32* %p, i64 1
50  store i32 2, i32* %arrayidx1, align 4
51  br label %if.end
52
53if.end:                                           ; preds = %if.else, %if.then
54  ret void
55}
56
57declare void @may_throw()
58