File: FoldValueComparisonIntoPredecessors-no-new-successors.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (35 lines) | stat: -rw-r--r-- 1,030 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
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -switch-range-to-icmp < %s | FileCheck %s

define void @widget(i32 %arg) {
; CHECK-LABEL: @widget(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    [[SWITCH:%.*]] = icmp ult i32 [[ARG:%.*]], 2
; CHECK-NEXT:    br i1 [[SWITCH]], label [[COMMON_RET:%.*]], label [[INFLOOP:%.*]]
; CHECK:       common.ret:
; CHECK-NEXT:    ret void
; CHECK:       infloop:
; CHECK-NEXT:    br label [[INFLOOP]]
;
bb:
  %tmp = icmp eq i32 %arg, 0
  br i1 %tmp, label %bb2, label %bb1

bb1:                                              ; preds = %bb1
  %tmp4 = icmp eq i32 %arg, 1
  br i1 %tmp4, label %bb6, label %bb5

bb5:                                              ; preds = %bb5, %bb5
  switch i32 %arg, label %bb5 [
  i32 0, label %bb9
  ]

bb2:
  ret void

bb6:                                              ; preds = %bb1
  ret void

bb9:                                              ; preds = %bb5
  ret void
}