File: phi-to-select-constexpr-icmp.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 (23 lines) | stat: -rw-r--r-- 871 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S %s | FileCheck %s

@glob = internal constant [5 x i8*] zeroinitializer, align 16

; Make sure simplifycfg does not crash when dealing with icmp constant
; expressions.
define i1 @test(i1 %c) {
; CHECK-LABEL: @test(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[SPEC_SELECT:%.*]] = select i1 [[C:%.*]], i1 false, i1 icmp ult (i8** getelementptr inbounds ([5 x i8*], [5 x i8*]* @glob, i64 0, i64 0), i8** inttoptr (i64 -40 to i8**))
; CHECK-NEXT:    ret i1 [[SPEC_SELECT]]
;
entry:
  br i1 %c, label %if.then, label %exit

if.then:
  br label %exit

exit:
  %p = phi i1 [ false, %if.then ], [ icmp ult (i8** getelementptr inbounds ([5 x i8*], [5 x i8*]* @glob, i64 0, i64 0), i8** inttoptr (i64 -40 to i8**)), %entry ]
  ret i1 %p
}