diff options
Diffstat (limited to 'vcpkg/ports/angle/cmake-buildsystem/cmake/DetectSSE2.cmake')
| -rw-r--r-- | vcpkg/ports/angle/cmake-buildsystem/cmake/DetectSSE2.cmake | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/vcpkg/ports/angle/cmake-buildsystem/cmake/DetectSSE2.cmake b/vcpkg/ports/angle/cmake-buildsystem/cmake/DetectSSE2.cmake new file mode 100644 index 0000000..cdd1ac5 --- /dev/null +++ b/vcpkg/ports/angle/cmake-buildsystem/cmake/DetectSSE2.cmake @@ -0,0 +1,63 @@ +# https://github.com/WebKit/WebKit/blob/0742522b24152262b04913242cb0b3c48de92ba0/Source/cmake/DetectSSE2.cmake + +################################# +# Check for the presence of SSE2. +# +# Once done, this will define: +# - SSE2_SUPPORT_FOUND - the system supports (at least) SSE2. +# +# Copyright (c) 2014, Pablo Fernandez Alcantarilla, Jesus Nuevo +# Copyright (c) 2019, Igalia S.L. +# +# Redistribution and use in source and binary forms, with or without modification, +# are permitted provided that the following conditions are met: +# +# * Redistributions of source code must retain the above copyright notice, +# this list of conditions and the following disclaimer. +# +# * Redistributions in binary form must reproduce the above copyright notice, +# this list of conditions and the following disclaimer in the documentation +# and/or other materials provided with the distribution. +# +# * Neither the name of the copyright holders nor the names of its contributors +# may be used to endorse or promote products derived from this software without +# specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES +# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT +# SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED +# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR +# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY +# WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +set(SSE2_SUPPORT_FOUND FALSE) + +macro(CHECK_FOR_SSE2) + include(CheckCXXSourceRuns) + + check_cxx_source_runs(" + #include <emmintrin.h> + int main () + { + __m128d a, b; + double vals[2] = {0}; + a = _mm_loadu_pd (vals); + b = _mm_add_pd (a,a); + _mm_storeu_pd (vals,b); + return 0; + }" + HAVE_SSE2_EXTENSIONS) + + if (COMPILER_IS_GCC_OR_CLANG OR (MSVC AND NOT CMAKE_CL_64)) + if (HAVE_SSE2_EXTENSIONS) + set(SSE2_SUPPORT_FOUND TRUE) + message(STATUS "Found SSE2 extensions") + endif () + endif () + +endmacro(CHECK_FOR_SSE2) + +CHECK_FOR_SSE2()
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