File: wrapv-lshr-sanitize.c

package info (click to toggle)

llvm-toolchain-13 1%3A13.0.1-6~deb11u1

links: PTS, VCS
area: main
in suites: bullseye
size: 1,418,812 kB
sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539

file content (12 lines) | stat: -rw-r--r-- 359 bytes

parent folder | download | duplicates (31)

// RUN: %clang_cc1 -fsanitize=shift-base -emit-llvm %s -o - -triple x86_64-linux-gnu -fwrapv | FileCheck %s

// CHECK-LABEL: @lsh_overflow
int lsh_overflow(int a, int b) {
  // CHECK-NOT: br
  // CHECK-NOT: call void @__ubsan_
  // CHECK-NOT: call void @llvm.trap
  
  // CHECK:      %[[RET:.*]] = shl i32
  // CHECK-NEXT: ret i32 %[[RET]]
  return a << b;
}