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Merge pull request #2110 from pc2/cpu-detection

Fix detection of Skylake processors when using GCC
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martin-frbg committed Jun 5, 2019
2 parents 27649b9 + 9cdc828 commit 417efd41c6e82f5ca1585a2023d02a7ebabb257b
Showing with 15 additions and 1 deletion.
  1. +9 −0 Makefile.system
  2. +1 −1 c_check
  3. +5 −0 cmake/system.cmake
@@ -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
@@ -240,7 +240,7 @@ if (($architecture eq "x86") || ($architecture eq "x86_64")) {
} else {
$no_avx512 = 0;
}
unlink("tmpf.o");
unlink("$tmpf.o");
}
}

@@ -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")

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