2 Commits

Author	SHA1	Message	Date
Thiago Macieira	4242fe0a03	Silence cl.exe warning about -arch:SSE2 being unknown in 64-bit builds ... That implies we need to differentiate between a variable set but empty and an empty variable. GCC, Clang and the Intel compiler accept -msse2 on 64-bit builds without warning (they also accept -mno-sse2), but the Microsoft compiler does not have that option. Change-Id: I54233388ba10994996ae3e749fd829085e8fd7b7 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>	2015-12-05 00:10:35 +00:00
Thiago Macieira	a587ad1e50	configure: Add support for detecting AVX512 instructions ... Tested on Linux with Clang 3.7, GCC 4.9, 5.1 and 6.0, ICC 16 beta; on OS X with Clang-XCode 6.4, ICC 16 beta; on Windows with MSVC 2013 and ICC 15. MinGW is not tested. GCC 4.9: AVX512F AVX512ER AVX512CD AVX512PF GCC 5 & 6: AVX512F AVX512ER AVX512CD AVX512PF AVX512DQ AVX512BW AVX512VL AVX512IFMA AVX512VBMI Clang 3.7: AVX512F AVX512ER AVX512CD Clang-XCode: <none> ICC 15 & 16: AVX512F AVX512ER AVX512CD AVX512PF AVX512DQ AVX512BW AVX512VL MSVC 2013: <none> Change-Id: Ib306f8f647014b399b87ffff13f1da1b161c31d7 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>	2015-09-25 20:29:22 +00:00