diff options
Diffstat (limited to 'src/erasure-code/jerasure/gf-complete/m4')
| -rw-r--r-- | src/erasure-code/jerasure/gf-complete/m4/ax_check_compile_flag.m4 | 72 | ||||
| -rw-r--r-- | src/erasure-code/jerasure/gf-complete/m4/ax_ext.m4 | 75 |
2 files changed, 147 insertions, 0 deletions
diff --git a/src/erasure-code/jerasure/gf-complete/m4/ax_check_compile_flag.m4 b/src/erasure-code/jerasure/gf-complete/m4/ax_check_compile_flag.m4 new file mode 100644 index 000000000..c3a8d695a --- /dev/null +++ b/src/erasure-code/jerasure/gf-complete/m4/ax_check_compile_flag.m4 @@ -0,0 +1,72 @@ +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS]) +# +# DESCRIPTION +# +# Check whether the given FLAG works with the current language's compiler +# or gives an error. (Warnings, however, are ignored) +# +# ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on +# success/failure. +# +# If EXTRA-FLAGS is defined, it is added to the current language's default +# flags (e.g. CFLAGS) when the check is done. The check is thus made with +# the flags: "CFLAGS EXTRA-FLAGS FLAG". This can for example be used to +# force the compiler to issue an error when a bad flag is given. +# +# NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this +# macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG. +# +# LICENSE +# +# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de> +# Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com> +# +# 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 +# Free Software Foundation, either version 3 of the License, or (at your +# option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General +# 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/>. +# +# As a special exception, the respective Autoconf Macro's copyright owner +# gives unlimited permission to copy, distribute and modify the configure +# scripts that are the output of Autoconf when processing the Macro. You +# need not follow the terms of the GNU General Public License when using +# or distributing such scripts, even though portions of the text of the +# Macro appear in them. The GNU General Public License (GPL) does govern +# all other use of the material that constitutes the Autoconf Macro. +# +# This special exception to the GPL applies to versions of the Autoconf +# Macro released by the Autoconf Archive. When you make and distribute a +# modified version of the Autoconf Macro, you may extend this special +# exception to the GPL to apply to your modified version as well. + +#serial 2 + +AC_DEFUN([AX_CHECK_COMPILE_FLAG], +[AC_PREREQ(2.59)dnl for _AC_LANG_PREFIX +AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl +AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [ + ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS + _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM()], + [AS_VAR_SET(CACHEVAR,[yes])], + [AS_VAR_SET(CACHEVAR,[no])]) + _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags]) +AS_IF([test x"AS_VAR_GET(CACHEVAR)" = xyes], + [m4_default([$2], :)], + [m4_default([$3], :)]) +AS_VAR_POPDEF([CACHEVAR])dnl +])dnl AX_CHECK_COMPILE_FLAGS diff --git a/src/erasure-code/jerasure/gf-complete/m4/ax_ext.m4 b/src/erasure-code/jerasure/gf-complete/m4/ax_ext.m4 new file mode 100644 index 000000000..95c4dbe23 --- /dev/null +++ b/src/erasure-code/jerasure/gf-complete/m4/ax_ext.m4 @@ -0,0 +1,75 @@ +# +# This macro is based on http://www.gnu.org/software/autoconf-archive/ax_ext.html +# but simplified to do compile time SIMD checks only +# + +AC_DEFUN([AX_EXT], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + + case $host_cpu in + aarch64*) + AC_DEFINE(HAVE_ARCH_AARCH64,,[targeting AArch64]) + SIMD_FLAGS="$SIMD_FLAGS -DARCH_AARCH64" + + AC_CACHE_CHECK([whether NEON is enabled], [ax_cv_have_neon_ext], [ax_cv_have_neon_ext=yes]) + if test "$ax_cv_have_neon_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-march=armv8-a+simd, [SIMD_FLAGS="$SIMD_FLAGS -march=armv8-a+simd -DARM_NEON"], [ax_cv_have_neon_ext=no]) + fi + ;; + + arm*) + AC_CACHE_CHECK([whether NEON is enabled], [ax_cv_have_neon_ext], [ax_cv_have_neon_ext=yes]) + if test "$ax_cv_have_neon_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-mfpu=neon, [SIMD_FLAGS="$SIMD_FLAGS -mfpu=neon -DARM_NEON"], [ax_cv_have_neon_ext=no]) + fi + ;; + + powerpc*) + AC_CACHE_CHECK([whether altivec is enabled], [ax_cv_have_altivec_ext], [ax_cv_have_altivec_ext=yes]) + if test "$ax_cv_have_altivec_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-faltivec, [SIMD_FLAGS="$SIMD_FLAGS -faltivec"], [ax_cv_have_altivec_ext=no]) + fi + ;; + + i[[3456]]86*|x86_64*|amd64*) + + AC_CACHE_CHECK([whether sse is enabled], [ax_cv_have_sse_ext], [ax_cv_have_sse_ext=yes]) + if test "$ax_cv_have_sse_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse, [SIMD_FLAGS="$SIMD_FLAGS -msse -DINTEL_SSE"], [ax_cv_have_sse_ext=no]) + fi + + AC_CACHE_CHECK([whether sse2 is enabled], [ax_cv_have_sse2_ext], [ax_cv_have_sse2_ext=yes]) + if test "$ax_cv_have_sse2_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse2, [SIMD_FLAGS="$SIMD_FLAGS -msse2 -DINTEL_SSE2"], [ax_cv_have_sse2_ext=no]) + fi + + AC_CACHE_CHECK([whether sse3 is enabled], [ax_cv_have_sse3_ext], [ax_cv_have_sse3_ext=yes]) + if test "$ax_cv_have_sse3_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse3, [SIMD_FLAGS="$SIMD_FLAGS -msse3 -DINTEL_SSE3"], [ax_cv_have_sse3_ext=no]) + fi + + AC_CACHE_CHECK([whether ssse3 is enabled], [ax_cv_have_ssse3_ext], [ax_cv_have_ssse3_ext=yes]) + if test "$ax_cv_have_ssse3_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-mssse3, [SIMD_FLAGS="$SIMD_FLAGS -mssse3 -DINTEL_SSSE3"], [ax_cv_have_ssse3_ext=no]) + fi + + AC_CACHE_CHECK([whether pclmuldq is enabled], [ax_cv_have_pclmuldq_ext], [ax_cv_have_pclmuldq_ext=yes]) + if test "$ax_cv_have_pclmuldq_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-mpclmul, [SIMD_FLAGS="$SIMD_FLAGS -mpclmul -DINTEL_SSE4_PCLMUL"], [ax_cv_have_pclmuldq_ext=no]) + fi + + AC_CACHE_CHECK([whether sse4.1 is enabled], [ax_cv_have_sse41_ext], [ax_cv_have_sse41_ext=yes]) + if test "$ax_cv_have_sse41_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse4.1, [SIMD_FLAGS="$SIMD_FLAGS -msse4.1 -DINTEL_SSE4"], [ax_cv_have_sse41_ext=no]) + fi + + AC_CACHE_CHECK([whether sse4.2 is enabled], [ax_cv_have_sse42_ext], [ax_cv_have_sse42_ext=yes]) + if test "$ax_cv_have_sse42_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse4.2, [SIMD_FLAGS="$SIMD_FLAGS -msse4.2 -DINTEL_SSE4"], [ax_cv_have_sse42_ext=no]) + fi + ;; + esac + + AC_SUBST(SIMD_FLAGS) +]) |