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
65
66
67
68
69
70
71
72
73
74
75
76
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
; RUN: opt -passes=hotcoldsplit -hotcoldsplit-threshold=0 -S < %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.14.0"
@G = external dso_local global i32, align 4
define void @foo(i32) {
%2 = icmp eq i32 %0, 0
tail call void @_Z10sideeffectv()
br i1 %2, label %sink, label %exit
sink:
tail call void @_Z10sideeffectv()
call void @llvm.trap()
unreachable
exit:
ret void
}
define void @bar(i32) {
%2 = icmp eq i32 %0, 0
tail call void @_Z10sideeffectv()
br i1 %2, label %sink, label %exit
sink:
tail call void @_Z10sideeffectv()
call void @llvm.trap()
unreachable
exit:
ret void
}
declare void @llvm.trap() noreturn cold
declare void @_Z10sideeffectv()
; CHECK-LABEL: @foo(
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP0:%.*]], 0
; CHECK-NEXT: tail call void @_Z10sideeffectv()
; CHECK-NEXT: br i1 [[TMP2]], label [[CODEREPL:%.*]], label [[EXIT:%.*]]
; CHECK: codeRepl:
; CHECK-NEXT: call void @foo.cold.1() #[[ATTR2:[0-9]+]]
; CHECK-NEXT: ret void
; CHECK: exit:
; CHECK-NEXT: ret void
;
;
; CHECK-LABEL: @bar(
; CHECK-NEXT: [[TMP2:%.*]] = icmp eq i32 [[TMP0:%.*]], 0
; CHECK-NEXT: tail call void @_Z10sideeffectv()
; CHECK-NEXT: br i1 [[TMP2]], label [[CODEREPL:%.*]], label [[EXIT:%.*]]
; CHECK: codeRepl:
; CHECK-NEXT: call void @bar.cold.1() #[[ATTR2]]
; CHECK-NEXT: ret void
; CHECK: exit:
; CHECK-NEXT: ret void
;
;
; CHECK-LABEL: @foo.cold.1(
; CHECK-NEXT: newFuncRoot:
; CHECK-NEXT: br label [[SINK:%.*]]
; CHECK: sink:
; CHECK-NEXT: tail call void @_Z10sideeffectv()
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
;
;
; CHECK-LABEL: @bar.cold.1(
; CHECK-NEXT: newFuncRoot:
; CHECK-NEXT: br label [[SINK:%.*]]
; CHECK: sink:
; CHECK-NEXT: tail call void @_Z10sideeffectv()
; CHECK-NEXT: call void @llvm.trap()
; CHECK-NEXT: unreachable
;
|
