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| 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 /configure.pri | |
| 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 'configure.pri')
| -rw-r--r-- | configure.pri | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.pri b/configure.pri index 83c0dee141..52147589bb 100644 --- a/configure.pri +++ b/configure.pri @@ -395,6 +395,19 @@ defineTest(qtConfTest_buildParts) { return(true) } +defineTest(qtConfTest_x86SimdAlways) { + configs = + fpfx = $${currentConfig}.features + simd = sse2 sse3 ssse3 sse4_1 sse4_2 rdrnd aesni shani avx avx2 avx512f \ + avx512er avx512cd avx512pf avx512dq avx512bw avx512vl avx512ifma avx512vbmi + for (f, simd) { + qtConfCheckFeature($$f) + equals($${fpfx}.$${f}.available, true): configs += $$f + } + $${1}.literal_args = $$system_quote(SIMD=$$join(configs, " ")) + qtConfTest_compile($${1}) +} + # custom outputs # this reloads the qmakespec as completely as reasonably possible. |