Add AVX detection and usage of -mavx[2] flags.
Force GCC to use Clang assembler always on MAC OS X for AVX support.
This commit is contained in:
Moinak Ghosh
parent
63bef473cc
commit
7055a8fc71
3 changed files with 70 additions and 18 deletions
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@ -239,8 +239,8 @@ $(TRANSP_OBJS) $(CRYPTO_OBJS) $(ZLIB_OBJS) $(BZLIB_OBJS) $(XXHASH_OBJS) $(BLAKE2
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@CRYPTO_COMPAT_OBJS@ $(CRYPTO_ASM_OBJS) $(ARCHIVEOBJS) $(PJPGOBJS) $(DISPACKOBJS)
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DEBUG_LINK = $(GPP) -pthread @LIBBSCGEN_OPT@ @EXTRA_OPT_FLAGS@ -fopenmp -fPIC
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DEBUG_COMPILE = $(GCC) -g -c @EXTRA_OPT_FLAGS@ -fPIC
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DEBUG_COMPILE_cpp = $(GPP) -g -c @EXTRA_OPT_FLAGS@ -fPIC
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DEBUG_COMPILE = $(GCC) -g -c @EXTRA_OPT_FLAGS@ -fPIC @USE_CLANG_AS@
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DEBUG_COMPILE_cpp = $(GPP) -g -c @EXTRA_OPT_FLAGS@ -fPIC @USE_CLANG_AS@
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DEBUG_VEC_FLAGS =
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DEBUG_LOOP_OPTFLAGS =
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DEBUG_GEN_OPT = -O -fno-omit-frame-pointer @LIBBSCGEN_OPT@ -fopenmp
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@ -248,8 +248,8 @@ DEBUG_CPPFLAGS = $(COMMON_CPPFLAGS)
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DEBUG_FPTR_FLAG =
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RELEASE_LINK = $(GPP) -pthread @LIBBSCGEN_OPT@ @EXTRA_OPT_FLAGS@ -fopenmp -fPIC
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RELEASE_COMPILE = $(GCC) -c @EXTRA_OPT_FLAGS@ -fPIC -fvisibility=hidden
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RELEASE_COMPILE_cpp = $(GPP) -c @EXTRA_OPT_FLAGS@ -fPIC -fvisibility=hidden
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RELEASE_COMPILE = $(GCC) -c @EXTRA_OPT_FLAGS@ -fPIC -fvisibility=hidden @USE_CLANG_AS@
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RELEASE_COMPILE_cpp = $(GPP) -c @EXTRA_OPT_FLAGS@ -fPIC -fvisibility=hidden @USE_CLANG_AS@
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RELEASE_VEC_FLAGS = $(COMMON_VEC_FLAGS)
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RELEASE_LOOP_OPTFLAGS = $(COMMON_LOOP_OPTFLAGS)
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RELEASE_CPPFLAGS = $(COMMON_CPPFLAGS) -DNDEBUG
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36
config
36
config
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@ -40,7 +40,9 @@ ${prog} [<options>]
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Enable building against an alternate Bzip2 and library installation.
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--with-libarchive=<path to libarchive installation tree> (Default: System)
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Enable building against an alternate libarchive installation.
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--no-sse-detect Do NOT attempt to probe the system's SSE/AVX capability for build flags.
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--no-sse-detect Do NOT attempt to probe the system's SSE capability for build flags.
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Implies '--no-avx-detect' below.
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--no-avx-detect Do NOT attempt to probe the system's AVX apability for build flags.
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--no-1.3-archive-compat Disable compatibility with compressed archives created with Pcompress
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version 1.3 (default: retain compatibility). Hash formats changed from
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version 1.3 to 1.4 so this option is required if files created using
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@ -86,6 +88,7 @@ zlib_prefix=
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bzlib_prefix=
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libarchive_prefix=
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sse_detect=1
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avx_detect=1
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sse_opt_flags="-msse2"
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crypto_compat_objs='\$\(CRYPTO_COMPAT_OBJS\)'
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crypto_compat_flags="-D__HASH_COMPATIBILITY_"
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@ -195,6 +198,7 @@ do
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;;
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--no-sse-detect)
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sse_detect=0
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avx_detect=0
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;;
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--no-1.3-archive-compat)
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crypto_compat_objs=""
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@ -254,8 +258,6 @@ then
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exit 1
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fi
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# SSE Detection
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${ECHO} -n "Checking for CPU SSE version ... "
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if [ $sse_detect -eq 1 ]
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then
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${GCC} -o sse_level ./utils/sse_level.c ./utils/cpuid.c -I./utils
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@ -266,6 +268,12 @@ then
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echo ""
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exit 1
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fi
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fi
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if [ $sse_detect -eq 1 ]
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then
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# SSE Detection
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${ECHO} -n "Checking for CPU SSE version ... "
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sse_ver=`./sse_level`
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if [ $? -ne 0 ]
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then
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@ -276,10 +284,30 @@ then
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exit 1
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fi
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echo $sse_ver
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rm -f sse_level
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sse_opt_flags="-m${sse_ver}"
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fi
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if [ $avx_detect -eq 1 -a $sse_detect -eq 1 ]
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then
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${ECHO} -n "Checking for CPU AVX version ... "
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avx_ver=`./sse_level --avx`
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if [ $? -ne 0 ]
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then
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rm -f sse_level
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echo "ERROR:"
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echo "SSE/AVX version detection utility. Try configuring with --no-sse-check option."
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echo ""
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exit 1
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fi
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if [ "x$avx_ver" = "x" ]
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then
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echo None
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else
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echo $avx_ver
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sse_opt_flags="${sse_opt_flags} -m${avx_ver}"
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fi
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fi
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rm -f sse_level
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echo $plat | egrep 'x86_64|amd64' > /dev/null
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if [ $? -eq 0 ]
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@ -23,24 +23,48 @@
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <utils.h>
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#include <cpuid.h>
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void
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usage(void)
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{
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printf("Usage: sse_level [--avx]\n");
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exit(1);
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}
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int
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main(void)
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main(int argc, char *argv[])
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{
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processor_cap_t pc;
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int avx_detect = 0;
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cpuid_basic_identify(&pc);
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if (pc.sse_level == 3 && pc.sse_sub_level == 1) {
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printf("ssse%d", pc.sse_level);
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pc.sse_sub_level = 0;
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} else {
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printf("sse%d", pc.sse_level);
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if (argc > 1) {
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if (strcmp(argv[1], "--avx") == 0)
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avx_detect = 1;
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else
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usage();
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}
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if (pc.sse_sub_level > 0)
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printf(".%d\n", pc.sse_sub_level);
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else
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printf("\n");
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if (!avx_detect) {
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if (pc.sse_level == 3 && pc.sse_sub_level == 1) {
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printf("ssse%d", pc.sse_level);
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pc.sse_sub_level = 0;
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} else {
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printf("sse%d", pc.sse_level);
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}
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if (pc.sse_sub_level > 0)
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printf(".%d\n", pc.sse_sub_level);
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else
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printf("\n");
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} else {
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if (pc.avx_level == 1)
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printf("avx\n");
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else if (pc.avx_level == 2)
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printf("avx2\n");
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}
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return (0);
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}
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