diff options
Diffstat (limited to 'src/erasure-code/jerasure/jerasure/m4/ax_ext.m4')
| -rw-r--r-- | src/erasure-code/jerasure/jerasure/m4/ax_ext.m4 | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/src/erasure-code/jerasure/jerasure/m4/ax_ext.m4 b/src/erasure-code/jerasure/jerasure/m4/ax_ext.m4 new file mode 100644 index 000000000..1ee3b94c0 --- /dev/null +++ b/src/erasure-code/jerasure/jerasure/m4/ax_ext.m4 @@ -0,0 +1,245 @@ +# +# Updated by KMG to support -DINTEL_SSE for GF-Complete +# +# =========================================================================== +# http://www.gnu.org/software/autoconf-archive/ax_ext.html +# =========================================================================== +# +# SYNOPSIS +# +# AX_EXT +# +# DESCRIPTION +# +# Find supported SIMD extensions by requesting cpuid. When an SIMD +# extension is found, the -m"simdextensionname" is added to SIMD_FLAGS if +# compiler supports it. For example, if "sse2" is available, then "-msse2" +# is added to SIMD_FLAGS. +# +# This macro calls: +# +# AC_SUBST(SIMD_FLAGS) +# +# And defines: +# +# HAVE_MMX / HAVE_SSE / HAVE_SSE2 / HAVE_SSE3 / HAVE_SSSE3 / HAVE_SSE4.1 / HAVE_SSE4.2 / HAVE_AVX +# +# LICENSE +# +# Copyright (c) 2007 Christophe Tournayre <turn3r@users.sourceforge.net> +# Copyright (c) 2013 Michael Petch <mpetch@capp-sysware.com> +# +# Copying and distribution of this file, with or without modification, are +# permitted in any medium without royalty provided the copyright notice +# and this notice are preserved. This file is offered as-is, without any +# warranty. + +#serial 12 + +AC_DEFUN([AX_EXT], +[ + AC_REQUIRE([AC_CANONICAL_HOST]) + + case $host_cpu in + powerpc*) + AC_CACHE_CHECK([whether altivec is supported], [ax_cv_have_altivec_ext], + [ + if test `/usr/sbin/sysctl -a 2>/dev/null| grep -c hw.optional.altivec` != 0; then + if test `/usr/sbin/sysctl -n hw.optional.altivec` = 1; then + ax_cv_have_altivec_ext=yes + fi + fi + ]) + + if test "$ax_cv_have_altivec_ext" = yes; then + AC_DEFINE(HAVE_ALTIVEC,,[Support Altivec instructions]) + AX_CHECK_COMPILE_FLAG(-faltivec, SIMD_FLAGS="$SIMD_FLAGS -faltivec", []) + fi + ;; + + + i[[3456]]86*|x86_64*|amd64*) + + AC_REQUIRE([AX_GCC_X86_CPUID]) + AC_REQUIRE([AX_GCC_X86_AVX_XGETBV]) + + AX_GCC_X86_CPUID(0x00000001) + ecx=`echo $ax_cv_gcc_x86_cpuid_0x00000001 | cut -d ":" -f 3` + edx=`echo $ax_cv_gcc_x86_cpuid_0x00000001 | cut -d ":" -f 4` + + AC_CACHE_CHECK([whether mmx is supported], [ax_cv_have_mmx_ext], + [ + ax_cv_have_mmx_ext=no + if test "$((0x$edx>>23&0x01))" = 1; then + ax_cv_have_mmx_ext=yes + fi + ]) + + AC_CACHE_CHECK([whether sse is supported], [ax_cv_have_sse_ext], + [ + ax_cv_have_sse_ext=no + if test "$((0x$edx>>25&0x01))" = 1; then + ax_cv_have_sse_ext=yes + fi + ]) + + AC_CACHE_CHECK([whether sse2 is supported], [ax_cv_have_sse2_ext], + [ + ax_cv_have_sse2_ext=no + if test "$((0x$edx>>26&0x01))" = 1; then + ax_cv_have_sse2_ext=yes + fi + ]) + + AC_CACHE_CHECK([whether sse3 is supported], [ax_cv_have_sse3_ext], + [ + ax_cv_have_sse3_ext=no + if test "$((0x$ecx&0x01))" = 1; then + ax_cv_have_sse3_ext=yes + fi + ]) + + AC_CACHE_CHECK([whether ssse3 is supported], [ax_cv_have_ssse3_ext], + [ + ax_cv_have_ssse3_ext=no + if test "$((0x$ecx>>9&0x01))" = 1; then + ax_cv_have_ssse3_ext=yes + fi + ]) + + AC_CACHE_CHECK([whether sse4.1 is supported], [ax_cv_have_sse41_ext], + [ + ax_cv_have_sse41_ext=no + if test "$((0x$ecx>>19&0x01))" = 1; then + ax_cv_have_sse41_ext=yes + fi + ]) + + AC_CACHE_CHECK([whether sse4.2 is supported], [ax_cv_have_sse42_ext], + [ + ax_cv_have_sse42_ext=no + if test "$((0x$ecx>>20&0x01))" = 1; then + ax_cv_have_sse42_ext=yes + fi + ]) + + AC_CACHE_CHECK([whether avx is supported by processor], [ax_cv_have_avx_cpu_ext], + [ + ax_cv_have_avx_cpu_ext=no + if test "$((0x$ecx>>28&0x01))" = 1; then + ax_cv_have_avx_cpu_ext=yes + fi + ]) + + if test x"$ax_cv_have_avx_cpu_ext" = x"yes"; then + AX_GCC_X86_AVX_XGETBV(0x00000000) + + xgetbv_eax="0" + if test x"$ax_cv_gcc_x86_avx_xgetbv_0x00000000" != x"unknown"; then + xgetbv_eax=`echo $ax_cv_gcc_x86_avx_xgetbv_0x00000000 | cut -d ":" -f 1` + fi + + AC_CACHE_CHECK([whether avx is supported by operating system], [ax_cv_have_avx_ext], + [ + ax_cv_have_avx_ext=no + + if test "$((0x$ecx>>27&0x01))" = 1; then + if test "$((0x$xgetbv_eax&0x6))" = 6; then + ax_cv_have_avx_ext=yes + fi + fi + ]) + if test x"$ax_cv_have_avx_ext" = x"no"; then + AC_MSG_WARN([Your processor supports AVX, but your operating system doesn't]) + fi + fi + + if test "$ax_cv_have_mmx_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-mmmx, ax_cv_support_mmx_ext=yes, []) + if test x"$ax_cv_support_mmx_ext" = x"yes"; then + SIMD_FLAGS="$SIMD_FLAGS -mmmx" + AC_DEFINE(HAVE_MMX,,[Support mmx instructions]) + else + AC_MSG_WARN([Your processor supports mmx instructions but not your compiler, can you try another compiler?]) + fi + fi + + if test "$ac_cv_sizeof_long" -eq 8; then + SIMD_FLAGS="$SIMD_FLAGS -DARCH_64" + fi + + if test "$ax_cv_have_sse_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse, ax_cv_support_sse_ext=yes, []) + if test x"$ax_cv_support_sse_ext" = x"yes"; then + SIMD_FLAGS="$SIMD_FLAGS -msse -DINTEL_SSE" + AC_DEFINE(HAVE_SSE,,[Support SSE (Streaming SIMD Extensions) instructions]) + else + AC_MSG_WARN([Your processor supports sse instructions but not your compiler, can you try another compiler?]) + fi + fi + + if test "$ax_cv_have_sse2_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse2, ax_cv_support_sse2_ext=yes, []) + if test x"$ax_cv_support_sse2_ext" = x"yes"; then + SIMD_FLAGS="$SIMD_FLAGS -msse2 -DINTEL_SSE2" + AC_DEFINE(HAVE_SSE2,,[Support SSE2 (Streaming SIMD Extensions 2) instructions]) + else + AC_MSG_WARN([Your processor supports sse2 instructions but not your compiler, can you try another compiler?]) + fi + fi + + if test "$ax_cv_have_sse3_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse3, ax_cv_support_sse3_ext=yes, []) + if test x"$ax_cv_support_sse3_ext" = x"yes"; then + SIMD_FLAGS="$SIMD_FLAGS -msse3 -DINTEL_SSE3" + AC_DEFINE(HAVE_SSE3,,[Support SSE3 (Streaming SIMD Extensions 3) instructions]) + else + AC_MSG_WARN([Your processor supports sse3 instructions but not your compiler, can you try another compiler?]) + fi + fi + + if test "$ax_cv_have_ssse3_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-mssse3, ax_cv_support_ssse3_ext=yes, []) + if test x"$ax_cv_support_ssse3_ext" = x"yes"; then + SIMD_FLAGS="$SIMD_FLAGS -mssse3" + AC_DEFINE(HAVE_SSSE3,,[Support SSSE3 (Supplemental Streaming SIMD Extensions 3) instructions]) + else + AC_MSG_WARN([Your processor supports ssse3 instructions but not your compiler, can you try another compiler?]) + fi + fi + + if test "$ax_cv_have_sse41_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse4.1, ax_cv_support_sse41_ext=yes, []) + if test x"$ax_cv_support_sse41_ext" = x"yes"; then + SIMD_FLAGS="$SIMD_FLAGS -msse4.1 -DINTEL_SSE4" + AC_DEFINE(HAVE_SSE4_1,,[Support SSSE4.1 (Streaming SIMD Extensions 4.1) instructions]) + else + AC_MSG_WARN([Your processor supports sse4.1 instructions but not your compiler, can you try another compiler?]) + fi + fi + + if test "$ax_cv_have_sse42_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-msse4.2, ax_cv_support_sse42_ext=yes, []) + if test x"$ax_cv_support_sse42_ext" = x"yes"; then + SIMD_FLAGS="$SIMD_FLAGS -msse4.2 -DINTEL_SSE4" + AC_DEFINE(HAVE_SSE4_2,,[Support SSSE4.2 (Streaming SIMD Extensions 4.2) instructions]) + else + AC_MSG_WARN([Your processor supports sse4.2 instructions but not your compiler, can you try another compiler?]) + fi + fi + + if test "$ax_cv_have_avx_ext" = yes; then + AX_CHECK_COMPILE_FLAG(-mavx, ax_cv_support_avx_ext=yes, []) + if test x"$ax_cv_support_avx_ext" = x"yes"; then + SIMD_FLAGS="$SIMD_FLAGS -mavx" + AC_DEFINE(HAVE_AVX,,[Support AVX (Advanced Vector Extensions) instructions]) + else + AC_MSG_WARN([Your processor supports avx instructions but not your compiler, can you try another compiler?]) + fi + fi + + ;; + esac + + AC_SUBST(SIMD_FLAGS) +]) |