1 // RUN: %clang_cl_asan %Od %s %Fe%t
2 // RUN: %env_asan_opts=handle_sigfpe=1 not %run %t 2>&1 | FileCheck %s
3
4 // FIXME: On MinGW frame #0 does not include the line number?
5 // XFAIL: target={{.*-windows-gnu}}
6
7 // Test the error output from misaligned SSE2 memory access. This is a READ
8 // memory access. Windows appears to always provide an address of -1 for these
9 // types of faults, and there doesn't seem to be a way to distinguish them from
10 // other types of access violations without disassembling.
11
12 #include <emmintrin.h>
13 #include <stdio.h>
14
test()15 __m128i test() {
16 char buffer[17] = {};
17 __m128i a = _mm_load_si128((__m128i *)buffer);
18 __m128i b = _mm_load_si128((__m128i *)(&buffer[0] + 1));
19 return _mm_or_si128(a, b);
20 }
21
main()22 int main() {
23 puts("before alignment fault");
24 fflush(stdout);
25 volatile __m128i v = test();
26 return 0;
27 }
28 // CHECK: before alignment fault
29 // CHECK: ERROR: AddressSanitizer: access-violation on unknown address {{0x[fF]*}}
30 // CHECK-NEXT: The signal is caused by a READ memory access.
31 // CHECK-NEXT: #0 {{.*}} in test({{(void)?}}) {{.*}}misalignment.cpp:{{.*}}
32