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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
; RUN: opt < %s -S -speculative-execution \
; RUN: -spec-exec-max-speculation-cost 4 -spec-exec-max-not-hoisted 3 \
; RUN: | FileCheck %s
declare float @llvm.fabs.f32(float) nounwind readnone
declare i32 @llvm.ctlz.i32(i32, i1) nounwind readnone
declare float @unknown(float)
declare float @unknown_readnone(float) nounwind readnone
; CHECK-LABEL: @ifThen_fabs(
; CHECK: call float @llvm.fabs.f32(
; CHECK: br i1 true
define void @ifThen_fabs() {
br i1 true, label %a, label %b
a:
%x = call float @llvm.fabs.f32(float 1.0)
br label %b
b:
ret void
}
; CHECK-LABEL: @ifThen_ctlz(
; CHECK: call i32 @llvm.ctlz.i32(
; CHECK: br i1 true
define void @ifThen_ctlz() {
br i1 true, label %a, label %b
a:
%x = call i32 @llvm.ctlz.i32(i32 0, i1 true)
br label %b
b:
ret void
}
; CHECK-LABEL: @ifThen_call_sideeffects(
; CHECK: br i1 true
; CHECK: call float @unknown(
define void @ifThen_call_sideeffects() {
br i1 true, label %a, label %b
a:
%x = call float @unknown(float 1.0)
br label %b
b:
ret void
}
; CHECK-LABEL: @ifThen_call_readnone(
; CHECK: br i1 true
; CHECK: call float @unknown_readnone(
define void @ifThen_call_readnone() {
br i1 true, label %a, label %b
a:
%x = call float @unknown_readnone(float 1.0)
br label %b
b:
ret void
}
|
