1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
; RUN: opt < %s -passes='print<branch-prob>' -disable-output 2>&1 | FileCheck %s
; This function tests the floating point unorder comparison. The probability
; of NaN should be extremely small.
; CHECK: Printing analysis {{.*}} for function 'uno'
; CHECK: edge %0 -> %a probability is 0x00000800 / 0x80000000 = 0.00%
; CHECK: edge %0 -> %b probability is 0x7ffff800 / 0x80000000 = 100.00% [HOT edge]
define void @uno(float %val1, float %val2) {
%cond = fcmp uno float %val1, %val2
br i1 %cond, label %a, label %b
a:
call void @fa()
ret void
b:
call void @fb()
ret void
}
; This function tests the floating point order comparison.
; CHECK: Printing analysis {{.*}} for function 'ord'
; CHECK: edge %0 -> %a probability is 0x7ffff800 / 0x80000000 = 100.00% [HOT edge]
; CHECK: edge %0 -> %b probability is 0x00000800 / 0x80000000 = 0.00%
define void @ord(float %val1, float %val2) {
%cond = fcmp ord float %val1, %val2
br i1 %cond, label %a, label %b
a:
call void @fa()
ret void
b:
call void @fb()
ret void
}
declare void @fa()
declare void @fb()
|
