File: merge-empty-return-blocks.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 (48 lines) | stat: -rw-r--r-- 842 bytes parent folder | download | duplicates (5) 
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
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S < %s | FileCheck %s

define void @t0(i1 %c) {
; CHECK-LABEL: @t0(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    ret void
;
entry:
  br i1 %c, label %end0, label %end1

end0:
  ret void

end1:
  ret void
}

define i8 @t1(i1 %c, i8 %v) {
; CHECK-LABEL: @t1(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    ret i8 [[V:%.*]]
;
entry:
  br i1 %c, label %end0, label %end1

end0:
  ret i8 %v

end1:
  ret i8 %v
}

define i8 @t2(i1 %c, i8 %v0, i8 %v1) {
; CHECK-LABEL: @t2(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[SPEC_SELECT:%.*]] = select i1 [[C:%.*]], i8 [[V0:%.*]], i8 [[V1:%.*]]
; CHECK-NEXT:    ret i8 [[SPEC_SELECT]]
;
entry:
  br i1 %c, label %end0, label %end1

end0:
  ret i8 %v0

end1:
  ret i8 %v1
}