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Disable -mfpu=neon for aarch64 #4098

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Jul 11, 2023
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Disable -mfpu=neon for aarch64 #4098

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5 changes: 4 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -258,7 +258,11 @@ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm.*")
set(HAVE_AVX512F FALSE)
set(HAVE_FMA FALSE)
set(HAVE_SSE4_1 FALSE)

check_cxx_compiler_flag("-mfpu=neon" HAVE_NEON)
if(HAVE_NEON)
set(NEON_COMPILE_FLAGS "-mfpu=neon")
endif(HAVE_NEON)

else()

Expand All @@ -272,7 +276,6 @@ else()
endif(CMAKE_SYSTEM_PROCESSOR MATCHES "x86|x86_64|AMD64|amd64|i386|i686")

if(HAVE_NEON)
set(NEON_COMPILE_FLAGS "-mfpu=neon")
message(STATUS "LTO build is not supported on arm/RBPi.")
set(ENABLE_LTO FALSE) # enable LTO cause fatal error on arm/RBPi
endif()
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