| // UNSUPPORTED: target={{.*-windows-gnu}} |
| |
| // RUN: %clang_cl_asan -Od %s -Fe%t |
| // RUN: %env_asan_opts=handle_sigfpe=1 not %run %t 2>&1 | FileCheck %s |
| |
| // Test the error output from misaligned SSE2 memory access. This is a READ |
| // memory access. Windows appears to always provide an address of -1 for these |
| // types of faults, and there doesn't seem to be a way to distinguish them from |
| // other types of access violations without disassembling. |
| |
| #include <emmintrin.h> |
| #include <stdio.h> |
| |
| __m128i test() { |
| char buffer[17] = {}; |
| __m128i a = _mm_load_si128((__m128i *)buffer); |
| __m128i b = _mm_load_si128((__m128i *)(&buffer[0] + 1)); |
| return _mm_or_si128(a, b); |
| } |
| |
| int main() { |
| puts("before alignment fault"); |
| fflush(stdout); |
| volatile __m128i v = test(); |
| return 0; |
| } |
| // CHECK: before alignment fault |
| // CHECK: ERROR: AddressSanitizer: access-violation on unknown address {{0x[fF]*}} |
| // CHECK-NEXT: The signal is caused by a READ memory access. |
| // CHECK-NEXT: #0 {{.*}} in test(void) {{.*}}misalignment.cpp:{{.*}} |
