diff options
| author |   Damjan Marion <damarion@cisco.com> | 2020-04-29 21:28:15 +0200 |
|---|---|---|
| committer | Damjan Marion <damarion@cisco.com> | 2020-04-30 13:25:29 +0200 |
| commit | 162330f25aeec09694fffaaa31ba9b318620eb9c (patch) | |
| tree | 4c7a10aae7b2e5d54ef21260d08ad3671d44b061 /src/cmake | |
| parent | dc0ded7dd7a6b8ee68df25cd56666de804e55e64 (diff) | |
build: rework x86 CPU variants
Type: improvement
Change-Id: Ief243f88e654e578ef9b8060fcf535b364aececb
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/cmake')
| -rw-r--r-- | src/cmake/cpu.cmake | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/cmake/cpu.cmake b/src/cmake/cpu.cmake index 0ce8bea31ec..0e47f3325cf 100644 --- a/src/cmake/cpu.cmake +++ b/src/cmake/cpu.cmake @@ -76,17 +76,21 @@ endif() ############################################################################## if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") set(CMAKE_C_FLAGS "-march=corei7 -mtune=corei7-avx ${CMAKE_C_FLAGS}") - check_c_compiler_flag("-march=core-avx2" compiler_flag_march_core_avx2) - if(compiler_flag_march_core_avx2) - list(APPEND MARCH_VARIANTS "avx2\;-march=core-avx2 -mtune=core-avx2") + check_c_compiler_flag("-march=haswell" compiler_flag_march_haswell) + if(compiler_flag_march_haswell) + list(APPEND MARCH_VARIANTS "hsw\;-march=haswell -mtune=haswell") endif() if (GNU_ASSEMBLER_AVX512_BUG) message(WARNING "AVX-512 multiarch variant(s) disabled due to GNU Assembler bug") else() + check_c_compiler_flag("-mprefer-vector-width=256" compiler_flag_mprefer_vector_width) check_c_compiler_flag("-march=skylake-avx512" compiler_flag_march_skylake_avx512) check_c_compiler_flag("-march=icelake-client" compiler_flag_march_icelake_client) - if(compiler_flag_march_skylake_avx512) - list(APPEND MARCH_VARIANTS "avx512\;-march=skylake-avx512 -mtune=skylake-avx512") + if(compiler_flag_march_skylake_avx512 AND compiler_flag_mprefer_vector_width) + list(APPEND MARCH_VARIANTS "skx\;-march=skylake-avx512 -mtune=skylake-avx512 -mprefer-vector-width=256") + endif() + if(compiler_flag_march_icelake_client AND compiler_flag_mprefer_vector_width) + list(APPEND MARCH_VARIANTS "icl\;-march=icelake-client -mtune=icelake-client -mprefer-vector-width=512") endif() endif() elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)") |