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Merge pull request #2110 from pc2/cpu-detection 

Fix detection of Skylake processors when using GCC
This commit is contained in:
Martin Kroeker 2019-06-05 20:27:05 +02:00 committed by GitHub
parent 27649b9543 9cdc828afa
commit 417efd41c6
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 15 additions and 1 deletions
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9
Makefile.system
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@ -9,6 +9,11 @@ ifndef TOPDIR
TOPDIR = .
endif
# If ARCH is not set, we use the host system's architecture.
ifndef ARCH
ARCH := $(shell uname -m)
endif
# Catch conflicting usage of ARCH in some BSD environments
ifeq ($(ARCH), amd64)
override ARCH=x86_64
@ -137,6 +142,10 @@ endif
endif
# On x86_64 build getarch with march=native. This is required to detect AVX512 support in getarch.
ifeq ($(ARCH), x86_64)
GETARCH_FLAGS += -march=native
endif
ifdef INTERFACE64

2
c_check
View File

@ -240,7 +240,7 @@ if (($architecture eq "x86") || ($architecture eq "x86_64")) {
} else {
$no_avx512 = 0;
}
unlink("tmpf.o");
unlink("$tmpf.o");
}
}

5
cmake/system.cmake
View File

@ -65,6 +65,11 @@ if (DEFINED TARGET)
set(GETARCH_FLAGS "-DFORCE_${TARGET}")
endif ()
# On x86_64 build getarch with march=native. This is required to detect AVX512 support in getarch.
if (X86_64)
set(GETARCH_FLAGS "${GETARCH_FLAGS} -march=native")
endif ()
if (INTERFACE64)
message(STATUS "Using 64-bit integers.")
set(GETARCH_FLAGS "${GETARCH_FLAGS} -DUSE64BITINT")