// RUN: %clang_cl_asan %Od %s %Fe%t // RUN: %env_asan_opts=handle_sigfpe=1 not %run %t 2>&1 | FileCheck %s // FIXME: On MinGW frame #0 does not include the line number? // XFAIL: target={{.*-windows-gnu}} // 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 #include __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:{{.*}}