18 lines · c
1// RUN: %clang_min_runtime -fsanitize=alignment %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK2 3#include <stdlib.h>4 5int main(int argc, char *argv[]) {6 7 char *ptr = (char *)malloc(2);8 9 void *t = __builtin_assume_aligned(ptr + 1, 0x8000);10 (void)t;11 // CHECK: ubsan: alignment-assumption by 0x{{[[:xdigit:]]+$}}12 // CHECK-NOT: alignment-assumption13 14 free(ptr);15 16 return 0;17}18