diff options
| author | Marcus Asteborg <maastebo@microsoft.com> | 2020-04-14 02:14:49 +0300 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2020-04-21 05:47:57 +0300 |
| commit | 7f035cc695247b7392990963a265d03f17791ab1 (patch) | |
| tree | a5fb187d8c40d774bdce7f9a8c872bb71b2d2485 /CMakeLists.txt | |
| parent | c5c986a3a9d3035b4813998a5f903b6758c456c9 (diff) | |
cmake - add option for fast math
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 995109b8..b69aab29 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -59,6 +59,20 @@ cmake_dependent_option(OPUS_NONTHREADSAFE_PSEUDOSTACK "NOT OPUS_VAR_ARRAYS; NOT OPUS_USE_ALLOCA" OFF) +cmake_dependent_option(OPUS_FAST_MATH + "Enable fast math" + ON + "OPUS_FLOAT_APPROX; OPUS_FAST_MATH" + OFF) + +if(OPUS_FAST_MATH) + if(MSVC) + check_and_set_flag(FAST_MATH /fp:fast) + else() + check_and_set_flag(FAST_MATH -ffast-math) + endif() +endif() + if(OPUS_BUILD_SHARED_LIBRARY OR BUILD_SHARED_LIBS) # Global flag to cause add_library() to create shared libraries if on. set(BUILD_SHARED_LIBS ON) @@ -176,6 +190,7 @@ add_feature_info( "compile with the floating point API (for machines with float library)") add_feature_info(OPUS_FLOAT_APPROX OPUS_FLOAT_APPROX "Enable floating point approximations (Ensure your platform supports IEEE 754 before enabling)") +add_feature_info(OPUS_FAST_MATH FAST_MATH_SUPPORTED "Enable fast math, (depending on OPUS_FLOAT_APPROX to be enabled)") add_feature_info(OPUS_INSTALL_PKG_CONFIG_MODULE OPUS_INSTALL_PKG_CONFIG_MODULE "install PkgConfig module") add_feature_info(OPUS_INSTALL_CMAKE_CONFIG_MODULE OPUS_INSTALL_CMAKE_CONFIG_MODULE |