diff options
| author | Thiago Macieira <thiago.macieira@intel.com> | 2017-11-15 21:01:15 -0800 |
|---|---|---|
| committer | Thiago Macieira <thiago.macieira@intel.com> | 2017-11-30 08:30:40 +0000 |
| commit | a09fc184acd0874ea9876cdb2c4b123b226d8587 (patch) | |
| tree | c3808834554d1de1411ef115863dc60482551c76 /src/corelib/tools | |
| parent | ff1ffa7577ba88412daf9904bbc1e4de9e024436 (diff) | |
Add a configure-time check for QT_COMPILER_SUPPORTS_SIMD_ALWAYS
This has two main benefits:
1) introduces a qmake CONFIG we can use in .pro/.pri/.prf files
2) removes the need to keep an up-to-date list of which compilers
support the feature
The test is implemented as trying to compile every single SIMD test we
currently have, but without passing the -mXXX option. The reason for
trying all of them is that some people may have modified their mkspecs
to add -mXXX options or -march=XXX, which could enable the particular
feature we tried, resulting in a false positive outcome.
Change-Id: I938b024e38bf4aac9154fffd14f7784dc8d1f020
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Diffstat (limited to 'src/corelib/tools')
| -rw-r--r-- | src/corelib/tools/qsimd_p.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/src/corelib/tools/qsimd_p.h b/src/corelib/tools/qsimd_p.h index a462d7bb58..fafc3e37b0 100644 --- a/src/corelib/tools/qsimd_p.h +++ b/src/corelib/tools/qsimd_p.h @@ -164,11 +164,7 @@ # if !defined(__MIPS_DSPR2__) && defined(__mips_dspr2) && defined(Q_PROCESSOR_MIPS_32) # define __MIPS_DSPR2__ # endif -#elif (defined(Q_CC_INTEL) || defined(Q_CC_MSVC) \ - || (defined(Q_CC_GNU) && !defined(Q_CC_CLANG) && Q_CC_GNU >= 409) \ - || (defined(Q_CC_CLANG) && Q_CC_CLANG >= 308)) \ - && !defined(QT_BOOTSTRAPPED) -# define QT_COMPILER_SUPPORTS_SIMD_ALWAYS +#elif defined(Q_PROCESSOR_X86) && defined(QT_COMPILER_SUPPORTS_SIMD_ALWAYS) # define QT_COMPILER_SUPPORTS_HERE(x) ((__ ## x ## __) || QT_COMPILER_SUPPORTS(x)) # if defined(Q_CC_GNU) && !defined(Q_CC_INTEL) /* GCC requires attributes for a function */ |