qt5base-lts/config.tests
Thiago Macieira 37352b23a9 x86: Disable AVX support on 64-bit MinGW
GCC for 64-bit Windows has a bug that it fails to properly re-align the
stack pointer for use with 256-bit memory addresses (AVX). Therefore,
there's about a 50/50 chance that any function using AVX will have an
improperly-aligned stack. In release mode, stack accesses should be
rare, but in debug mode they happen frequently. Either way, this is a
ticking time bomb, so we disable.

Clang is not affected.
32-bit MinGW is not affected.
64-bit in other OSes with GCC are not affected.

Fixes: QTBUG-73539
Change-Id: Id061f35c088044b69a15fffd1580967808f31671
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2019-02-06 08:11:29 +00:00
..
arch SIMD: Remove unused (and unlikely to be ever used) AVX-512 profiles 2018-06-25 18:49:33 +00:00
atomicfptr configure: un-namespace remaining non-inline configure tests 2017-08-02 16:38:00 +00:00
avx512 AVX512 test: an intrinsic that GCC forgot to implement prior to GCC8 2018-09-15 20:55:25 +00:00
stl configure: clean up projects of remaining non-inline tests 2017-08-02 16:38:06 +00:00
verifyspec configure: un-namespace remaining non-inline configure tests 2017-08-02 16:38:00 +00:00
x86_simd x86: Disable AVX support on 64-bit MinGW 2019-02-06 08:11:29 +00:00
.gitignore
.qmake.conf make also configure tests not see %LIB% and %INCLUDE% under mingw 2016-10-17 13:44:43 +00:00