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