File: apply-successor-penalty.ll

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (53 lines) | stat: -rw-r--r-- 1,006 bytes parent folder | download | duplicates (4) 
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
 
; REQUIRES: asserts
; RUN: opt -hotcoldsplit -debug-only=hotcoldsplit -S < %s -o /dev/null 2>&1 | FileCheck %s

declare void @sink() cold

; CHECK-LABEL: Outlining in one_non_region_successor
define void @one_non_region_successor(i32 %arg) {
entry:
  br i1 undef, label %cold1, label %exit

cold1:
  ; CHECK: Applying penalty for: 1 non-region successor
  call void @sink()
  br i1 undef, label %cold2, label %cold3

cold2:
  br i1 undef, label %cold4, label %exit

cold3:
  br i1 undef, label %cold4, label %exit

cold4:
  unreachable

exit:
  ret void
}

; CHECK-LABEL: Outlining in two_non_region_successor
define void @two_non_region_successors(i32 %arg) {
entry:
  br i1 undef, label %cold1, label %exit1

cold1:
  ; CHECK: Applying penalty for: 2 non-region successors
  call void @sink()
  br i1 undef, label %cold2, label %cold3

cold2:
  br i1 undef, label %cold4, label %exit1

cold3:
  br i1 undef, label %cold4, label %exit2

cold4:
  unreachable

exit1:
  br label %exit2

exit2:
  ret void
}