1; RUN: opt < %s -basic-aa -globals-aa -S -licm -enable-new-pm=0 | FileCheck %s
2; RUN: opt < %s -basic-aa -globals-aa -S -licm -enable-new-pm=1 | FileCheck %s
3
4target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
5target triple = "x86_64-apple-macosx10.10.0"
6
7@b = common global i32 0, align 4
8@c = internal global i32 0, align 4
9@d = common global i32 0, align 4
10@e = common global i32* null, align 4
11
12define void @foo(i32* %P) noinline {
13; CHECK: define void @foo
14  %loadp = load i32, i32* %P, align 4
15  store i32 %loadp, i32* @d, align 4
16  ret void
17}
18
19define void @bar() noinline {
20; CHECK: define void @bar
21  %loadp = load i32, i32* @d, align 4
22  store i32 %loadp, i32* @c, align 4
23  ret void
24}
25
26define i32 @main() {
27entry:
28  %retval = alloca i32, align 4
29  %c = alloca [1 x i32], align 4
30  store i32 0, i32* %retval, align 4
31  call void @bar()
32  store i32 0, i32* @b, align 4
33  br label %for.cond
34  ;; Check that @c is LICM'ed out.
35; CHECK: load i32, i32* @c
36for.cond:                                         ; preds = %for.inc, %entry
37; CHECK-LABEL: for.cond:
38; CHECK: load i32, i32* @b
39  %a1 = load i32, i32* @b, align 4
40  %aa2 = load i32, i32* @c, align 4
41  %add = add nsw i32 %a1, %aa2
42  %p1 = load i32*, i32** @e, align 4
43  call void @foo(i32* %p1)
44  %cmp = icmp slt i32 %add, 3
45  br i1 %cmp, label %for.body, label %for.end
46
47for.body:                                         ; preds = %for.cond
48  %a2 = load i32, i32* @b, align 4
49  %idxprom = sext i32 %a2 to i64
50  br label %for.inc
51
52for.inc:                                          ; preds = %for.body
53  %a3 = load i32, i32* @b, align 4
54  %inc = add nsw i32 %a3, 1
55  store i32 %inc, i32* @b, align 4
56  br label %for.cond
57
58for.end:                                          ; preds = %for.cond
59  ret i32 0
60}
61
62; Function Attrs: nounwind argmemonly
63declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind argmemonly
64
65; Function Attrs: noreturn nounwind
66declare void @abort() noreturn nounwind
67