File: constant-fold-shifts.ll

package info (click to toggle)
llvm-toolchain-17 1%3A17.0.6-22
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,799,624 kB
  • sloc: cpp: 6,428,607; ansic: 1,383,196; asm: 793,408; python: 223,504; objc: 75,364; f90: 60,502; lisp: 33,869; pascal: 15,282; sh: 9,684; perl: 7,453; ml: 4,937; awk: 3,523; makefile: 2,889; javascript: 2,149; xml: 888; fortran: 619; cs: 573
file content (38 lines) | stat: -rw-r--r-- 1,227 bytes parent folder | download | duplicates (2)
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
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=instcombine < %s | FileCheck %s

@A = external constant i32

; OSS-Fuzz #14169
; https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14169
define void @ossfuzz_14169_test1(ptr %a0) {
; CHECK-LABEL: @ossfuzz_14169_test1(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    store ptr undef, ptr undef, align 8
; CHECK-NEXT:    ret void
;
bb:
  %B = ptrtoint ptr @A to i64
  %C = icmp sge i64 %B, 0
  %X = select i1 %C, i712 0, i712 1
  %B9 = lshr i712 %X, 146783911423364576743092537299333564210980159306769991919205685720763064069663027716481187399048043939495936
  %G5 = getelementptr i64, ptr undef, i712 %B9
  store ptr %G5, ptr undef
  ret void
}

define void @ossfuzz_14169_test2(ptr %a0) {
; CHECK-LABEL: @ossfuzz_14169_test2(
; CHECK-NEXT:  bb:
; CHECK-NEXT:    store ptr undef, ptr undef, align 8
; CHECK-NEXT:    ret void
;
bb:
  %B = ptrtoint ptr @A to i64
  %C = icmp sge i64 %B, 0
  %X = select i1 %C, i712 0, i712 1
  %B9 = shl i712 %X, 146783911423364576743092537299333564210980159306769991919205685720763064069663027716481187399048043939495936
  %G5 = getelementptr i64, ptr undef, i712 %B9
  store ptr %G5, ptr undef
  ret void
}