# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_gcc_archflag.html
+# https://www.gnu.org/software/autoconf-archive/ax_gcc_archflag.html
# ===========================================================================
#
# SYNOPSIS
#
# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
# Copyright (c) 2008 Matteo Frigo
-# Copyright (c) 2012 Tsukasa Oi
+# Copyright (c) 2014 Tsukasa Oi
+# Copyright (c) 2017 Alexey Kopytov
#
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
-# with this program. If not, see <http://www.gnu.org/licenses/>.
+# with this program. If not, see <https://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
-#serial 13
+#serial 20
AC_DEFUN([AX_GCC_ARCHFLAG],
[AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_CANONICAL_HOST])
+AC_REQUIRE([AC_PROG_SED])
+AC_REQUIRE([AX_COMPILER_VENDOR])
AC_ARG_WITH(gcc-arch, [AS_HELP_STRING([--with-gcc-arch=<arch>], [use architecture <arch> for gcc -march/-mtune, instead of guessing])],
ax_gcc_arch=$withval, ax_gcc_arch=yes)
AX_GCC_X86_CPUID(0)
AX_GCC_X86_CPUID(1)
case $ax_cv_gcc_x86_cpuid_0 in
- *:756e6547:*:*) # Intel
+ *:756e6547:6c65746e:49656e69) # Intel
case $ax_cv_gcc_x86_cpuid_1 in
- *5[[48]]?:*:*:*) ax_gcc_arch="pentium-mmx pentium" ;;
- *5??:*:*:*) ax_gcc_arch=pentium ;;
+ *5[[4578]]?:*:*:*) ax_gcc_arch="pentium-mmx pentium" ;;
+ *5[[123]]?:*:*:*) ax_gcc_arch=pentium ;;
+ *0?61?:*:*:*|?61?:*:*:*|61?:*:*:*) ax_gcc_arch=pentiumpro ;;
+ *0?6[[356]]?:*:*:*|?6[[356]]?:*:*:*|6[[356]]?:*:*:*) ax_gcc_arch="pentium2 pentiumpro" ;;
+ *0?6[[78ab]]?:*:*:*|?6[[78ab]]?:*:*:*|6[[78ab]]?:*:*:*) ax_gcc_arch="pentium3 pentiumpro" ;;
+ *0?6[[9d]]?:*:*:*|?6[[9d]]?:*:*:*|6[[9d]]?:*:*:*|*1?65?:*:*:*) ax_gcc_arch="pentium-m pentium3 pentiumpro" ;;
+ *0?6e?:*:*:*|?6e?:*:*:*|6e?:*:*:*) ax_gcc_arch="yonah pentium-m pentium3 pentiumpro" ;;
+ *0?6f?:*:*:*|?6f?:*:*:*|6f?:*:*:*|*1?66?:*:*:*) ax_gcc_arch="core2 pentium-m pentium3 pentiumpro" ;;
*1?6[[7d]]?:*:*:*) ax_gcc_arch="penryn core2 pentium-m pentium3 pentiumpro" ;;
- *1?6[[aef]]?:*:*:*|*2?6[[5cef]]?:*:*:*) ax_gcc_arch="corei7 core2 pentium-m pentium3 pentiumpro" ;;
- *1?6c?:*:*:*|*[[23]]?66?:*:*:*) ax_gcc_arch="atom core2 pentium-m pentium3 pentiumpro" ;;
- *2?6[[ad]]?:*:*:*) ax_gcc_arch="corei7-avx corei7 core2 pentium-m pentium3 pentiumpro" ;;
- *[[1-9a-f]]?6??:*:*:*) ax_gcc_arch="core2 pentiumpro" ;;
- *6[[3456]]?:*:*:*) ax_gcc_arch="pentium2 pentiumpro" ;;
- *6a?:*[[01]]:*:*) ax_gcc_arch="pentium2 pentiumpro" ;;
- *6a?:*[[234]]:*:*) ax_gcc_arch="pentium3 pentiumpro" ;;
- *6[[9de]]?:*:*:*) ax_gcc_arch="pentium-m pentium3 pentiumpro" ;;
- *6[[78b]]?:*:*:*) ax_gcc_arch="pentium3 pentiumpro" ;;
- *6f?:*:*:*) ax_gcc_arch="core2 pentium-m pentium3 pentiumpro" ;;
+ *1?6[[aef]]?:*:*:*|*2?6e?:*:*:*) ax_gcc_arch="nehalem corei7 core2 pentium-m pentium3 pentiumpro" ;;
+ *2?6[[5cf]]?:*:*:*) ax_gcc_arch="westmere corei7 core2 pentium-m pentium3 pentiumpro" ;;
+ *2?6[[ad]]?:*:*:*) ax_gcc_arch="sandybridge corei7-avx corei7 core2 pentium-m pentium3 pentiumpro" ;;
+ *3?6[[ae]]?:*:*:*) ax_gcc_arch="ivybridge core-avx-i corei7-avx corei7 core2 pentium-m pentium3 pentiumpro" ;;
+ *3?6[[cf]]?:*:*:*|*4?6[[56]]?:*:*:*) ax_gcc_arch="haswell core-avx2 core-avx-i corei7-avx corei7 core2 pentium-m pentium3 pentiumpro" ;;
+ *3?6d?:*:*:*) ax_gcc_arch="broadwell core-avx2 core-avx-i corei7-avx corei7 core2 pentium-m pentium3 pentiumpro" ;;
+ *1?6c?:*:*:*|*2?6[[67]]?:*:*:*|*3?6[[56]]?:*:*:*) ax_gcc_arch="bonnell atom core2 pentium-m pentium3 pentiumpro" ;;
+ *3?67?:*:*:*|*[[45]]?6[[ad]]?:*:*:*) ax_gcc_arch="silvermont atom core2 pentium-m pentium3 pentiumpro" ;;
+ *000?f[[012]]?:*:*:*|?f[[012]]?:*:*:*|f[[012]]?:*:*:*) ax_gcc_arch="pentium4 pentiumpro" ;;
+ *000?f[[346]]?:*:*:*|?f[[346]]?:*:*:*|f[[346]]?:*:*:*) ax_gcc_arch="nocona prescott pentium4 pentiumpro" ;;
+ # fallback
+ *5??:*:*:*) ax_gcc_arch=pentium ;;
+ *??6??:*:*:*) ax_gcc_arch="core2 pentiumpro" ;;
*6??:*:*:*) ax_gcc_arch=pentiumpro ;;
- *f3[[347]]:*:*:*|*f4[1347]:*:*:*|*f6?:*:*:*)
- case $host_cpu in
- x86_64*) ax_gcc_arch="nocona pentium4 pentiumpro" ;;
- *) ax_gcc_arch="prescott pentium4 pentiumpro" ;;
- esac ;;
- *f??:*:*:*) ax_gcc_arch="pentium4 pentiumpro";;
+ *00??f??:*:*:*|??f??:*:*:*|?f??:*:*:*|f??:*:*:*) ax_gcc_arch="pentium4 pentiumpro" ;;
esac ;;
- *:68747541:*:*) # AMD
+ *:68747541:444d4163:69746e65) # AMD
case $ax_cv_gcc_x86_cpuid_1 in
*5[[67]]?:*:*:*) ax_gcc_arch=k6 ;;
- *5[[8d]]?:*:*:*) ax_gcc_arch="k6-2 k6" ;;
- *5[[9]]?:*:*:*) ax_gcc_arch="k6-3 k6" ;;
- *60?:*:*:*) ax_gcc_arch=k7 ;;
+ *5[[8]]?:*:*:*) ax_gcc_arch="k6-2 k6" ;;
+ *5[[9d]]?:*:*:*) ax_gcc_arch="k6-3 k6" ;;
*6[[12]]?:*:*:*) ax_gcc_arch="athlon k7" ;;
*6[[34]]?:*:*:*) ax_gcc_arch="athlon-tbird k7" ;;
- *67?:*:*:*) ax_gcc_arch="athlon-4 athlon k7" ;;
- *6[[68a]]?:*:*:*)
- AX_GCC_X86_CPUID(0x80000006) # L2 cache size
- case $ax_cv_gcc_x86_cpuid_0x80000006 in
- *:*:*[[1-9a-f]]??????:*) # (L2 = ecx >> 16) >= 256
- ax_gcc_arch="athlon-xp athlon-4 athlon k7" ;;
- *) ax_gcc_arch="athlon-4 athlon k7" ;;
- esac ;;
- *5??f??:*:*:*) ax_gcc_arch="btver1 amdfam10 k8" ;;
- *6??f??:*:*:*) ax_gcc_arch="bdver1 amdfam10 k8" ;;
- *[[1-9a-f]]??f??:*:*:*) ax_gcc_arch="amdfam10 k8" ;;
- *f[[4cef8b]]?:*:*:*) ax_gcc_arch="athlon64 k8" ;;
- *f5?:*:*:*) ax_gcc_arch="opteron k8" ;;
- *f7?:*:*:*) ax_gcc_arch="athlon-fx opteron k8" ;;
- *f??:*:*:*) ax_gcc_arch="k8" ;;
+ *6[[678a]]?:*:*:*) ax_gcc_arch="athlon-xp athlon-4 athlon k7" ;;
+ *000?f[[4578bcef]]?:*:*:*|?f[[4578bcef]]?:*:*:*|f[[4578bcef]]?:*:*:*|*001?f[[4578bcf]]?:*:*:*|1?f[[4578bcf]]?:*:*:*) ax_gcc_arch="athlon64 k8" ;;
+ *002?f[[13457bcf]]?:*:*:*|2?f[[13457bcf]]?:*:*:*|*004?f[[138bcf]]?:*:*:*|4?f[[138bcf]]?:*:*:*|*005?f[[df]]?:*:*:*|5?f[[df]]?:*:*:*|*006?f[[8bcf]]?:*:*:*|6?f[[8bcf]]?:*:*:*|*007?f[[cf]]?:*:*:*|7?f[[cf]]?:*:*:*|*00c?f1?:*:*:*|c?f1?:*:*:*|*020?f3?:*:*:*|20?f3?:*:*:*) ax_gcc_arch="athlon64-sse3 k8-sse3 athlon64 k8" ;;
+ *010?f[[245689a]]?:*:*:*|10?f[[245689a]]?:*:*:*|*030?f1?:*:*:*|30?f1?:*:*:*) ax_gcc_arch="barcelona amdfam10 k8" ;;
+ *050?f[[12]]?:*:*:*|50?f[[12]]?:*:*:*) ax_gcc_arch="btver1 amdfam10 k8" ;;
+ *060?f1?:*:*:*|60?f1?:*:*:*) ax_gcc_arch="bdver1 amdfam10 k8" ;;
+ *060?f2?:*:*:*|60?f2?:*:*:*|*061?f[[03]]?:*:*:*|61?f[[03]]?:*:*:*) ax_gcc_arch="bdver2 bdver1 amdfam10 k8" ;;
+ *063?f0?:*:*:*|63?f0?:*:*:*) ax_gcc_arch="bdver3 bdver2 bdver1 amdfam10 k8" ;;
+ *07[[03]]?f0?:*:*:*|7[[03]]?f0?:*:*:*) ax_gcc_arch="btver2 btver1 amdfam10 k8" ;;
+ # fallback
+ *0[[13]]??f??:*:*:*|[[13]]??f??:*:*:*) ax_gcc_arch="barcelona amdfam10 k8" ;;
+ *020?f??:*:*:*|20?f??:*:*:*) ax_gcc_arch="athlon64-sse3 k8-sse3 athlon64 k8" ;;
+ *05??f??:*:*:*|5??f??:*:*:*) ax_gcc_arch="btver1 amdfam10 k8" ;;
+ *060?f??:*:*:*|60?f??:*:*:*) ax_gcc_arch="bdver1 amdfam10 k8" ;;
+ *061?f??:*:*:*|61?f??:*:*:*) ax_gcc_arch="bdver2 bdver1 amdfam10 k8" ;;
+ *06??f??:*:*:*|6??f??:*:*:*) ax_gcc_arch="bdver3 bdver2 bdver1 amdfam10 k8" ;;
+ *070?f??:*:*:*|70?f??:*:*:*) ax_gcc_arch="btver2 btver1 amdfam10 k8" ;;
+ *???f??:*:*:*) ax_gcc_arch="amdfam10 k8" ;;
esac ;;
- *:746e6543:*:*) # IDT
+ *:746e6543:736c7561:48727561) # IDT / VIA (Centaur)
case $ax_cv_gcc_x86_cpuid_1 in
*54?:*:*:*) ax_gcc_arch=winchip-c6 ;;
- *58?:*:*:*) ax_gcc_arch=winchip2 ;;
+ *5[[89]]?:*:*:*) ax_gcc_arch=winchip2 ;;
+ *66?:*:*:*) ax_gcc_arch=winchip2 ;;
*6[[78]]?:*:*:*) ax_gcc_arch=c3 ;;
- *69?:*:*:*) ax_gcc_arch="c3-2 c3" ;;
+ *6[[9adf]]?:*:*:*) ax_gcc_arch="c3-2 c3" ;;
esac ;;
esac
if test x"$ax_gcc_arch" = x; then # fallback
sparc*)
AC_PATH_PROG([PRTDIAG], [prtdiag], [prtdiag], [$PATH:/usr/platform/`uname -i`/sbin/:/usr/platform/`uname -m`/sbin/])
cputype=`(((grep cpu /proc/cpuinfo | cut -d: -f2) ; ($PRTDIAG -v |grep -i sparc) ; grep -i cpu /var/run/dmesg.boot ) | head -n 1) 2> /dev/null`
- cputype=`echo "$cputype" | tr -d ' -' |tr $as_cr_LETTERS $as_cr_letters`
+ cputype=`echo "$cputype" | tr -d ' -' | $SED 's/SPARCIIi/SPARCII/' |tr $as_cr_LETTERS $as_cr_letters`
case $cputype in
*ultrasparciv*) ax_gcc_arch="ultrasparc4 ultrasparc3 ultrasparc v9" ;;
*ultrasparciii*) ax_gcc_arch="ultrasparc3 ultrasparc v9" ;;
alphaev79) ax_gcc_arch="ev79 ev7 ev69 ev68 ev67" ;;
powerpc*)
- cputype=`((grep cpu /proc/cpuinfo | head -n 1 | cut -d: -f2 | cut -d, -f1 | sed 's/ //g') ; /usr/bin/machine ; /bin/machine; grep CPU /var/run/dmesg.boot | head -n 1 | cut -d" " -f2) 2> /dev/null`
- cputype=`echo $cputype | sed -e 's/ppc//g;s/ *//g'`
+ cputype=`((grep cpu /proc/cpuinfo | head -n 1 | cut -d: -f2 | cut -d, -f1 | $SED 's/ //g') ; /usr/bin/machine ; /bin/machine; grep CPU /var/run/dmesg.boot | head -n 1 | cut -d" " -f2) 2> /dev/null`
+ cputype=`echo $cputype | $SED -e 's/ppc//g;s/ *//g'`
case $cputype in
*750*) ax_gcc_arch="750 G3" ;;
*740[[0-9]]*) ax_gcc_arch="$cputype 7400 G4" ;;
esac
ax_gcc_arch="$ax_gcc_arch powerpc"
;;
+ aarch64)
+ cpuimpl=`grep 'CPU implementer' /proc/cpuinfo 2> /dev/null | cut -d: -f2 | tr -d " " | head -n 1`
+ cpuarch=`grep 'CPU architecture' /proc/cpuinfo 2> /dev/null | cut -d: -f2 | tr -d " " | head -n 1`
+ cpuvar=`grep 'CPU variant' /proc/cpuinfo 2> /dev/null | cut -d: -f2 | tr -d " " | head -n 1`
+ case $cpuimpl in
+ 0x42) case $cpuarch in
+ 8) case $cpuvar in
+ 0x0) ax_gcc_arch="thunderx2t99 vulcan armv8.1-a armv8-a+lse armv8-a native" ;;
+ esac
+ ;;
+ esac
+ ;;
+ 0x43) case $cpuarch in
+ 8) case $cpuvar in
+ 0x0) ax_gcc_arch="thunderx armv8-a native" ;;
+ 0x1) ax_gcc_arch="thunderx+lse armv8.1-a armv8-a+lse armv8-a native" ;;
+ esac
+ ;;
+ esac
+ ;;
+ esac
+ ;;
esac
fi # not cross-compiling
fi # guess arch
if test "x$ax_gcc_arch" != x -a "x$ax_gcc_arch" != xno; then
-for arch in $ax_gcc_arch; do
- if test "x[]m4_default([$1],yes)" = xyes; then # if we require portable code
- flags="-mtune=$arch"
- # -mcpu=$arch and m$arch generate nonportable code on every arch except
- # x86. And some other arches (e.g. Alpha) don't accept -mtune. Grrr.
- case $host_cpu in i*86|x86_64*) flags="$flags -mcpu=$arch -m$arch";; esac
- else
- flags="-march=$arch -mcpu=$arch -m$arch"
- fi
- for flag in $flags; do
- AX_CHECK_COMPILE_FLAG($flag, [ax_cv_gcc_archflag=$flag; break])
+if test "x[]m4_default([$1],yes)" = xyes; then # if we require portable code
+ flag_prefixes="-mtune="
+ if test "x$ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor" = xclang; then flag_prefixes="-march="; fi
+ # -mcpu=$arch and m$arch generate nonportable code on every arch except
+ # x86. And some other arches (e.g. Alpha) don't accept -mtune. Grrr.
+ case $host_cpu in i*86|x86_64*|amd64*) flag_prefixes="$flag_prefixes -mcpu= -m";; esac
+else
+ flag_prefixes="-march= -mcpu= -m"
+fi
+for flag_prefix in $flag_prefixes; do
+ for arch in $ax_gcc_arch; do
+ flag="$flag_prefix$arch"
+ AX_CHECK_COMPILE_FLAG($flag, [if test "x$ax_cv_[]_AC_LANG_ABBREV[]_compiler_vendor" = xclang; then
+ if test "x[]m4_default([$1],yes)" = xyes; then
+ if test "x$flag" = "x-march=$arch"; then flag=-mtune=$arch; fi
+ fi
+ fi; ax_cv_gcc_archflag=$flag; break])
done
test "x$ax_cv_gcc_archflag" = xunknown || break
done
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