diff options
| author | Thiago Macieira <thiago.macieira@intel.com> | 2011-12-29 22:44:16 -0200 |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2012-06-12 17:34:52 +0200 |
| commit | b4525b34074665ed472cd421077a1633110f16a7 (patch) | |
| tree | c8b9aa1d8e3991c02400b3b93593812a61346222 /config.tests/common/sse4_1/sse4_1.cpp | |
| parent | f9c9d8aaa6684f596cf5675592782d5397e52093 (diff) | |
Add configure-time checking for the SSE and AVX features on Windows
Modify configure.exe to run some configure-time tests and check if
the SSE and AVX compiler features are supported.
The tests themselves required a bit of changes to compile with
MSVC. The include in sse4_2.cpp was wrong. And for whatever reason, it
didn't like the volatile variables, which GCC, Clang and ICC have been
happy with. This should produce no effect in compilation, though: even
dead code must be syntactically correct. We're not running the output.
Change-Id: Ibe5d0904a378a7efed853c7215f88a2ddcefb1b3
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
Diffstat (limited to 'config.tests/common/sse4_1/sse4_1.cpp')
| -rw-r--r-- | config.tests/common/sse4_1/sse4_1.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/config.tests/common/sse4_1/sse4_1.cpp b/config.tests/common/sse4_1/sse4_1.cpp index b2762b990f..693fd8a1d5 100644 --- a/config.tests/common/sse4_1/sse4_1.cpp +++ b/config.tests/common/sse4_1/sse4_1.cpp @@ -43,9 +43,9 @@ int main(int, char**) { - volatile __m128 a = _mm_setzero_ps(); + __m128 a = _mm_setzero_ps(); _mm_ceil_ps(a); - volatile __m128i result = _mm_mullo_epi32(_mm_set1_epi32(42), _mm_set1_epi32(64)); + __m128i result = _mm_mullo_epi32(_mm_set1_epi32(42), _mm_set1_epi32(64)); (void)result; return 0; } |