File: forward-dfs-reaches-marked-block.ll

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (29 lines) | stat: -rw-r--r-- 651 bytes parent folder | download | duplicates (8) 
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
 
; 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"

; CHECK-LABEL: define {{.*}}@fun
; CHECK: call {{.*}}@fun.cold.1(
define void @fun() {
entry:
  br i1 undef, label %if.then, label %if.else

if.then:
  ; This will be marked by the inverse DFS on sink-predecesors.
  br label %sink

sink:
  call void @sink()

  ; Do not allow the forward-DFS on sink-successors to mark the block again.
  br i1 undef, label %if.then, label %if.then.exit

if.then.exit:
  ret void

if.else:
  ret void
}

declare void @sink() cold