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add necessary modifications to CMake system to enable building on ARM, add arm_neon.h intrinsic header to intrinsics.h

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This commit is contained in:
Konstantinos Margaritis
2020-10-06 12:44:23 +03:00
parent b1170bcc2e
commit 5952c64066
5 changed files with 57 additions and 22 deletions
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46
cmake/arch.cmake
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@@ -6,7 +6,10 @@ if (HAVE_C_X86INTRIN_H)
set (INTRIN_INC_H "x86intrin.h")
elseif (HAVE_C_INTRIN_H)
set (INTRIN_INC_H "intrin.h")
else ()
elseif (HAVE_C_ARM_NEON_H)
set (INTRIN_INC_H "arm_neon.h")
set (FAT_RUNTIME OFF)
else()
message (FATAL_ERROR "No intrinsics header found")
endif ()
@@ -29,15 +32,16 @@ else (NOT FAT_RUNTIME)
set (CMAKE_REQUIRED_FLAGS "${CMAKE_C_FLAGS} ${EXTRA_C_FLAGS} ${ARCH_C_FLAGS}")
endif ()
# ensure we have the minimum of SSSE3 - call a SSSE3 intrinsic
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
if (ARCH_IA32 OR ARCH_X86_64)
# ensure we have the minimum of SSSE3 - call a SSSE3 intrinsic
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
int main() {
__m128i a = _mm_set1_epi8(1);
(void)_mm_shuffle_epi8(a, a);
}" HAVE_SSSE3)
# now look for AVX2
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
# now look for AVX2
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
#if !defined(__AVX2__)
#error no avx2
#endif
@@ -47,8 +51,8 @@ int main(){
(void)_mm256_xor_si256(z, z);
}" HAVE_AVX2)
# and now for AVX512
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
# and now for AVX512
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
#if !defined(__AVX512BW__)
#error no avx512bw
#endif
@@ -58,8 +62,8 @@ int main(){
(void)_mm512_abs_epi8(z);
}" HAVE_AVX512)
# and now for AVX512VBMI
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
# and now for AVX512VBMI
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
#if !defined(__AVX512VBMI__)
#error no avx512vbmi
#endif
@@ -70,26 +74,38 @@ int main(){
(void)_mm512_permutexvar_epi8(idx, a);
}" HAVE_AVX512VBMI)
elseif (ARCH_ARM32 OR ARCH_AARCH64)
CHECK_C_SOURCE_COMPILES("#include <${INTRIN_INC_H}>
int main() {
int32x4_t a = vdupq_n_s32(1);
}" HAVE_NEON)
else ()
message (FATAL_ERROR "Unsupported architecture")
endif ()
if (FAT_RUNTIME)
if (NOT HAVE_SSSE3)
if ((ARCH_IA32 OR ARCH_X86_64) AND NOT HAVE_SSSE3)
message(FATAL_ERROR "SSSE3 support required to build fat runtime")
endif ()
if (NOT HAVE_AVX2)
if ((ARCH_IA32 OR ARCH_X86_64) AND NOT HAVE_AVX2)
message(FATAL_ERROR "AVX2 support required to build fat runtime")
endif ()
if (BUILD_AVX512 AND NOT HAVE_AVX512)
if ((ARCH_IA32 OR ARCH_X86_64) AND BUILD_AVX512 AND NOT HAVE_AVX512)
message(FATAL_ERROR "AVX512 support requested but not supported")
endif ()
else (NOT FAT_RUNTIME)
if (NOT HAVE_AVX2)
if ((ARCH_IA32 OR ARCH_X86_64) AND NOT HAVE_AVX2)
message(STATUS "Building without AVX2 support")
endif ()
if (NOT HAVE_AVX512)
if ((ARCH_IA32 OR ARCH_X86_64) AND NOT HAVE_AVX512)
message(STATUS "Building without AVX512 support")
endif ()
if (NOT HAVE_SSSE3)
if ((ARCH_IA32 OR ARCH_X86_64) AND NOT HAVE_SSSE3)
message(FATAL_ERROR "A minimum of SSSE3 compiler support is required")
endif ()
if ((ARCH_ARM32 OR ARCH_AARCH64) AND NOT HAVE_NEON)
message(FATAL_ERROR "NEON support required for ARM support")
endif ()
endif ()
unset (CMAKE_REQUIRED_FLAGS)