1; RUN: opt < %s -passes='print<branch-prob>' -disable-output 2>&1 | FileCheck %s
2
3define i32 @cmp1(i32* readnone %0, i32* readnone %1) {
4; CHECK: Printing analysis results of BPI for function 'cmp1':
5  %3 = icmp eq i32* %0, %1
6  br i1 %3, label %4, label %6
7; CHECK:   edge  ->  probability is 0x30000000 / 0x80000000 = 37.50%
8; CHECK:   edge  ->  probability is 0x50000000 / 0x80000000 = 62.50%
9
104:                                                ; preds = %2
11  %5 = tail call i32 bitcast (i32 (...)* @f to i32 ()*)() #2
12  br label %8
13; CHECK:   edge  ->  probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
14
156:                                                ; preds = %2
16  %7 = tail call i32 bitcast (i32 (...)* @g to i32 ()*)() #2
17  br label %8
18; CHECK:   edge  ->  probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
19
208:                                                ; preds = %6, %4
21  %9 = phi i32 [ %5, %4 ], [ %7, %6 ]
22  ret i32 %9
23}
24
25define i32 @cmp2(i32* readnone %0, i32* readnone %1) {
26; CHECK: Printing analysis results of BPI for function 'cmp2':
27  %3 = icmp eq i32* %0, %1
28  br i1 %3, label %6, label %4
29; CHECK:   edge  ->  probability is 0x30000000 / 0x80000000 = 37.50%
30; CHECK:   edge  ->  probability is 0x50000000 / 0x80000000 = 62.50%
31
324:                                                ; preds = %2
33  %5 = tail call i32 bitcast (i32 (...)* @f to i32 ()*)() #2
34  br label %8
35; CHECK:   edge  ->  probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
36
376:                                                ; preds = %2
38  %7 = tail call i32 bitcast (i32 (...)* @g to i32 ()*)() #2
39  br label %8
40; CHECK:   edge  ->  probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
41
428:                                                ; preds = %6, %4
43  %9 = phi i32 [ %5, %4 ], [ %7, %6 ]
44  ret i32 %9
45}
46
47; CHECK: Printing analysis results of BPI for function 'cmp3':
48define i32 @cmp3(i32* readnone %0) {
49  %2 = icmp eq i32* %0, null
50  br i1 %2, label %3, label %5
51; CHECK:   edge  ->  probability is 0x30000000 / 0x80000000 = 37.50%
52; CHECK:   edge  ->  probability is 0x50000000 / 0x80000000 = 62.50%
53
543:                                                ; preds = %1
55  %4 = tail call i32 bitcast (i32 (...)* @f to i32 ()*)() #2
56  br label %7
57; CHECK:   edge  ->  probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
58
595:                                                ; preds = %1
60  %6 = tail call i32 bitcast (i32 (...)* @g to i32 ()*)() #2
61  br label %7
62; CHECK:   edge  ->  probability is 0x80000000 / 0x80000000 = 100.00% [HOT edge]
63
647:                                                ; preds = %5, %3
65  %8 = phi i32 [ %6, %5 ], [ %4, %3 ]
66  ret i32 %8
67}
68
69declare dso_local i32 @f(...) local_unnamed_addr #1
70declare dso_local i32 @g(...) local_unnamed_addr #1
71