File: ubsan_overflow.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 (13 lines) | stat: -rw-r--r-- 362 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
; RUN: opt -passes=sccp -S %s | FileCheck %s

@0 = private unnamed_addr constant [16 x i8] c"\01\00\00\00\01\01\00\00\01\01\01\00\01\01\01\01"

; CHECK-LABEL: @foo
define i8 @foo() {
entry:
  %0 = add nuw nsw i64 0, -1
  %1 = lshr i64 %0, 1
  %2 = getelementptr inbounds [4 x [4 x i8]], ptr @0, i64 0, i64 0, i64 %1
  %3 = load i8, ptr %2, align 1
  ret i8 %3
}