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Disable CPU optimizations not supported by the vast majority of
x86_64 systems. Also don't add anything for i686.
--- a/cmake/modules/SIMDExt.cmake 2017-03-23 22:22:58.254071694 +0100
+++ b/cmake/modules/SIMDExt.cmake 2017-03-23 22:23:22.446848845 +0100
@@ -6,10 +6,6 @@
# HAVE_INTEL_SSE
# HAVE_INTEL_SSE2
# HAVE_INTEL_SSE3
-# HAVE_INTEL_SSSE3
-# HAVE_INTEL_PCLMUL
-# HAVE_INTEL_SSE4_1
-# HAVE_INTEL_SSE4_2
#
# SIMD_COMPILE_FLAGS
#
@@ -56,7 +53,7 @@
if(HAVE_ARM_NEON)
set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mfpu=neon")
endif()
-elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i386|i686|amd64|x86_64|AMD64")
+elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64")
set(HAVE_INTEL 1)
CHECK_C_COMPILER_FLAG(-msse HAVE_INTEL_SSE)
if(HAVE_INTEL_SSE)
@@ -70,20 +67,4 @@
if(HAVE_INTEL_SSE3)
set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse3")
endif()
- CHECK_C_COMPILER_FLAG(-mssse3 HAVE_INTEL_SSSE3)
- if(HAVE_INTEL_SSSE3)
- set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mssse3")
- endif()
- CHECK_C_COMPILER_FLAG(-mpclmul HAVE_INTEL_PCLMUL)
- if(HAVE_INTEL_PCLMUL)
- set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -mpclmul")
- endif()
- CHECK_C_COMPILER_FLAG(-msse4.1 HAVE_INTEL_SSE4_1)
- if(HAVE_INTEL_SSE4_1)
- set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.1")
- endif()
- CHECK_C_COMPILER_FLAG(-msse4.2 HAVE_INTEL_SSE4_2)
- if(HAVE_INTEL_SSE4_2)
- set(SIMD_COMPILE_FLAGS "${SIMD_COMPILE_FLAGS} -msse4.2")
- endif()
endif()
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