File: dead-code-removal.ll

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (21 lines) | stat: -rw-r--r-- 607 bytes parent folder | download | duplicates (9) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes=instsimplify -S < %s | FileCheck %s

define void @foo() nounwind {
; CHECK-LABEL: @foo(
; CHECK-NEXT:    br i1 undef, label [[TMP1:%.*]], label [[TMP2:%.*]]
; CHECK:       1:
; CHECK-NEXT:    br label [[TMP1]]
; CHECK:       2:
; CHECK-NEXT:    ret void
;
  br i1 undef, label %1, label %4

; <label>:1                                       ; preds = %1, %0
  %2 = phi i32 [ %3, %1 ], [ undef, %0 ]
  %3 = sub i32 0, undef
  br label %1

; <label>:4                                       ; preds = %0
  ret void
}