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Fix GFNI detection

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Currently, GFNI will be activated for all x86 builds which fails on
older machines (prior to skylake or Zen4). Properly detect based on CPU
flags.

Signed-off-by: Raymond Knopp <raymond.knopp@eurecom.fr>
This commit is contained in:
Raymond Knopp
2026-05-20 09:11:34 +02:00
committed by Robert Schmidt
parent 6fc2d06077
commit 7e444cb544
1 changed files with 9 additions and 2 deletions
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11
CMakeLists.txt
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@@ -155,14 +155,17 @@ add_boolean_option(AVX512 ${AUTODETECT_AVX512} "Whether AVX512 intrinsics is ava
eval_boolean(AUTODETECT_AVX2 DEFINED CPUFLAGS AND CPUFLAGS MATCHES "avx2")
add_boolean_option(AVX2 ${AUTODETECT_AVX2} "Whether AVX2 intrinsics is available on the host processor" ON)
eval_boolean(AUTODETECT_GFNI DEFINED CPUFLAGS AND CPUFLAGS MATCHES "gfni")
add_boolean_option(GFNI ${AUTODETECT_GFNI} "Whether GFNI intrinsics is available on the host processor" ON)
message(STATUS "CPU architecture is ${CMAKE_SYSTEM_PROCESSOR}")
if (CROSS_COMPILE)
message(STATUS "setting as aarch64")
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -gdwarf-2 -lgcc -lrt")
elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
# The following intrinsics are assumed to be available on any x86 system
# (avx, f16c, fma, gnfi, mmx, pclmul, sse, sse2, sse3, xop)
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -DSIMDE_X86_AVX_NATIVE -DSIMDE_X86_AVX_NATIVE -DSIMDE_X86_F16C_NATIVE -DSIMDE_X86_FMA_NATIVE -DSIMDE_X86_GFNI_NATIVE -DSIMDE_X86_MMX_NATIVE -DSIMDE_X86_PCLMUL_NATIVE -DSIMDE_X86_SSE2_NATIVE -DSIMDE_X86_SSE3_NATIVE -DSIMDE_X86_SSE_NATIVE -DSIMDE_X86_XOP_HAVE_COM_ -DSIMDE_X86_XOP_NATIVE")
# (avx, f16c, fma, mmx, pclmul, sse, sse2, sse3, xop)
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -DSIMDE_X86_AVX_NATIVE -DSIMDE_X86_AVX_NATIVE -DSIMDE_X86_F16C_NATIVE -DSIMDE_X86_FMA_NATIVE -DSIMDE_X86_MMX_NATIVE -DSIMDE_X86_PCLMUL_NATIVE -DSIMDE_X86_SSE2_NATIVE -DSIMDE_X86_SSE3_NATIVE -DSIMDE_X86_SSE_NATIVE -DSIMDE_X86_XOP_HAVE_COM_ -DSIMDE_X86_XOP_NATIVE")
message(STATUS "AVX512 intrinsics are ${AVX512}")
if(${AVX512})
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -DSIMDE_X86_AVX512BW_NATIVE -DSIMDE_X86_AVX512F_NATIVE -DSIMDE_X86_AVX512VL_NATIVE -mavx512bw -march=skylake-avx512 -mtune=skylake-avx512")
@@ -173,6 +176,10 @@ elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
if(${AVX2})
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -DSIMDE_X86_AVX2_NATIVE -DSIMDE_X86_VPCLMULQDQ_NATIVE")
endif()
message(STATUS "GFNI intrinsics are ${GFNI}")
if(${GFNI})
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -DSIMDE_X86_GFNI_NATIVE -mgfni")
endif()
if (CPUINFO MATCHES "sse4_1")
set(C_FLAGS_PROCESSOR "${C_FLAGS_PROCESSOR} -DSIMDE_X86_SSE4_1_NATIVE")
endif()