From 47e75f0ac65a5b0852c3ecbb8e9d20dbbaf53553 Mon Sep 17 00:00:00 2001 From: Martin Kroeker Date: Tue, 1 Sep 2020 12:09:25 +0200 Subject: [PATCH] Allow overriding the AVX512 check with a NO_AVX512 define --- cmake/system_check.cmake | 2 ++ 1 file changed, 2 insertions(+) diff --git a/cmake/system_check.cmake b/cmake/system_check.cmake index 511a7c7d1..d06f4779f 100644 --- a/cmake/system_check.cmake +++ b/cmake/system_check.cmake @@ -109,6 +109,7 @@ else() endif() if (X86_64 OR X86) +if (NOT NO_AVX512) file(WRITE ${PROJECT_BINARY_DIR}/avx512.c "#include \n\nint main(void){ __asm__ volatile(\"vbroadcastss -4 * 4(%rsi), %zmm2\"); }") execute_process(COMMAND ${CMAKE_C_COMPILER} -march=skylake-avx512 -c -v -o ${PROJECT_BINARY_DIR}/avx512.o ${PROJECT_BINARY_DIR}/avx512.c OUTPUT_QUIET ERROR_QUIET RESULT_VARIABLE NO_AVX512) if (NO_AVX512 EQUAL 1) @@ -116,6 +117,7 @@ set (CCOMMON_OPT "${CCOMMON_OPT} -DNO_AVX512") endif() file(REMOVE "avx512.c" "avx512.o") endif() +endif() include(CheckIncludeFile) CHECK_INCLUDE_FILE("stdatomic.h" HAVE_C11)