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-rw-r--r--cmake/CompilerOptimizations.cmake53
1 files changed, 53 insertions, 0 deletions
diff --git a/cmake/CompilerOptimizations.cmake b/cmake/CompilerOptimizations.cmake
new file mode 100644
index 0000000..543daf8
--- /dev/null
+++ b/cmake/CompilerOptimizations.cmake
@@ -0,0 +1,53 @@
+
+check_c_compiler_flag(-ftree-vectorize HAS_TREE_VECTORIZE)
+check_cxx_compiler_flag(-ftree-vectorize HAS_CXX_TREE_VECTORIZE)
+if (HAS_TREE_VECTORISE)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ftree-vectorize")
+endif()
+if (HAS_CXX_TREE_VECTORISE)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftree-vectorize")
+endif()
+
+
+check_c_compiler_flag(-ffast-math HAS_FAST_MATH)
+check_cxx_compiler_flag(-ffast-math HAS_CXX_FAST_MATH)
+if (HAS_FAST_MATH AND NOT MINGW)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffast-math")
+endif()
+if (HAS_CXX_FAST_MATH AND NOT MINGW)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ffast-math")
+endif()
+
+
+
+if(NOT "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+check_c_compiler_flag(-mfpmath=sse HAS_FPMATH_SSE)
+check_cxx_compiler_flag(-mfpmath=sse HAS_CXX_FPMATH_SSE)
+ if (HAS_FPMATH_SSE)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpmath=sse")
+endif()
+if (HAS_CXX_FPMATH_SSE)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpmath=sse")
+endif()
+
+endif()
+
+
+check_c_compiler_flag(-msse2 HAS_SSE2)
+check_cxx_compiler_flag(-msse2 HAS_CXX_SSE2)
+ if (HAS_SSE2 AND NOT IOS AND NOT WASM)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse2")
+endif()
+if (HAS_CXX_SSE2 AND NOT IOS AND NOT WASM)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse2")
+endif()
+
+
+check_c_compiler_flag(-fomit-frame-pointer HAS_OMIT_FRAME_POINTER)
+check_cxx_compiler_flag(-fomit-frame-pointer HAS_CXX_OMIT_FRAME_POINTER)
+if (HAS_OMIT_FRAME_POINTER)
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fomit-frame-pointer")
+endif()
+if (HAS_CXX_OMIT_FRAME_POINTER)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fomit-frame-pointer")
+endif()