mirror of https://github.com/mpv-player/mpv
Proper gcc 3.1 cpu optimization autodetect, patch by Luca Barbieri <ldb@ldb.ods.org>
Please check on pre-3.1 gcc to make sure everythings correct. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6422 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
atmos4
parent
96961f6ea7
commit
08d3dc0b23
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@ -71,7 +71,7 @@ darwin() { issystem "Darwin" ; return "$?" ; }
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# x86/x86pc is used by QNX
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x86() {
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case "$host_arch" in
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i[3-9]86|x86|x86pc) return 0 ;;
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i[3-9]86|x86|x86pc|k5|k6|k6-2|k6-3|pentium*|athlon*|i586-i686) return 0 ;;
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*) return 1 ;;
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esac
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}
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@ -329,7 +329,7 @@ if test -z "$_target" ; then
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# x86/x86pc is used by QNX
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case "`( uname -m ) 2>&1`" in
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i[3-9]86|x86|x86pc) host_arch=i386 ;;
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i[3-9]86|x86|x86pc|k5|k6|k6_2|k6_3|k6-2|k6-3|pentium*|athlon*|i586_i686|i586-i686) host_arch=i386 ;;
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ia64) host_arch=ia64 ;;
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x86_64) host_arch=x86_64 ;;
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ppc) host_arch=ppc ;;
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@ -353,7 +353,8 @@ else
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sunos) system_name=SunOS ;;
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qnx) system_name=QNX ;;
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esac
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host_arch=`echo $_target | cut -d '-' -f 1`
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# We need to convert underscores so that values like k6-2 and pentium-mmx can be passed
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host_arch=`echo $_target | cut -d '-' -f 1 | tr '_' '-'`
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fi
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echo "Detected operating system: $system_name"
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@ -565,45 +566,84 @@ fi
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# x86/x86pc is used by QNX
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case "$host_arch" in
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i[3-9]86|x86|x86pc)
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i[3-9]86|x86|x86pc|k5|k6|k6-2|k6-3|pentium*|athlon*|i586-i686)
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_def_arch="#define ARCH_X86 1"
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_target_arch="TARGET_ARCH_X86 = yes"
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_def_words_endian="#undef WORDS_BIGENDIAN"
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iproc=586
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proc=pentium
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case "$pvendor" in
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AuthenticAMD)
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case "$pfamily" in
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3) proc=i386 iproc=386 ;;
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4) proc=i486 iproc=486 ;;
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5) proc=k5 iproc=586 # LGB: models are: K5/SSA5 K5 K5 K5 ? ? K6 K6 K6-2 K6-3
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test "$pmodel" -ge 6 && proc=k6 ;;
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6|7) proc=k7 iproc=686 ;;
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*) proc=pentium iproc=586 ;;
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5) iproc=686 # LGB: models are: K5/SSA5 K5 K5 K5 ? ? K6 K6 K6-2 K6-3
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# TODO: how to determine if model 13 is a k6-2 or a k6-3? Couldn't find anything on amd.com
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if test "$pmodel" == 9; then
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proc=k6-3
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elif test "$pmodel" -ge 8; then
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proc=k6-2
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elif test "$pmodel" -ge 6; then
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proc=k6
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else
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proc=i586
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iproc=586
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fi
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;;
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6) iproc=686
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if test "$pmodel" -ge 7; then
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proc=athlon-xp # or MP, but it doesn't really matter
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elif test "$pmodel" -ge 6; then
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if test "$pstepping" -ge 2; then
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proc=athlon-xp
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else
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proc=athlon-4
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fi
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elif test "$pmodel" -ge 4; then
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proc=athlon-tbird
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else
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proc=athlon # TODO: should the Duron Spitfire be considered a Thunderbird instead?
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fi
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;;
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*) proc=athlon-xp iproc=686 ;;
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esac
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;;
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GenuineIntel)
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case "$pfamily" in
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3) proc=i386 iproc=386 ;;
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4) proc=i486 iproc=486 ;;
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5) proc=pentium iproc=586 ;;
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6|15) proc=i686 iproc=686 ;;
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*) proc=pentium iproc=586 ;;
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5) iproc=586
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if test "$pmodel" == 4 || test "$pmodel" == 8; then
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proc=pentium-mmx # 4 is desktop, 8 is mobile
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else
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proc=i586
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fi
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;;
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6) iproc=686
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if test "$pmodel" -ge 7; then
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proc=pentium3
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elif test "$pmodel" -ge 3; then
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proc=pentium2
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else
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proc=i686
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fi
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;;
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15) proc=pentium4 iproc=686 ;;
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*) proc=pentium4 iproc=686 ;;
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esac
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;;
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unknown)
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case "$pfamily" in
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3) proc=i386 iproc=386 ;;
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4) proc=i486 iproc=486 ;;
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*) proc=pentium iproc=586 ;;
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*) proc=i586 iproc=586 ;;
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esac
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;;
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*)
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proc=pentium iproc=586 ;;
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proc=i586 iproc=586 ;;
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esac
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# check that gcc supports our cpu, if not, fallback to pentium
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# check that gcc supports our cpu, if not, fallback to earlier ones
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# LGB: check -mcpu and -march swithing step by step with enabling
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# to fall back till 386.
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@ -612,25 +652,28 @@ cat > $TMPC << EOF
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int main(void) { return 0; }
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EOF
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if test "$_runtime_cpudetection" = no ; then
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if test "$proc" = "k7" ; then
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if test "$proc" = "athlon-xp" || test "$proc" = "athlon-4" || test "$proc" = "athlon-tbird"; then
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cc_check -march=$proc -mcpu=$proc || proc=athlon
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fi
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if test "$proc" = "athlon" ; then
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cc_check -march=$proc -mcpu=$proc || proc=pentiumpro
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if test "$proc" = "k6-3" || test "$proc" = "k6-2"; then
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cc_check -march=$proc -mcpu=$proc || proc=k6
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fi
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if test "$proc" = "k6" ; then
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cc_check -march=$proc -mcpu=$proc || proc=k5
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if test "$proc" = "k6"; then
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if ! cc_check -march=$proc -mcpu=$proc; then
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if cc_check -march=i586 -mcpu=i686; then
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proc=i586-i686
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else
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proc=i586
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fi
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fi
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fi
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if test "$proc" = "k5" ; then
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cc_check -march=$proc -mcpu=$proc || proc=pentium
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if test "$proc" = "pentium4" || test "$proc" = "pentium3" || test "$proc" = "pentium2" || test "$proc" = "athlon"; then
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cc_check -march=$proc -mcpu=$proc || proc=i686
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fi
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if test "$proc" = "i686" ; then
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cc_check -march=$proc -mcpu=$proc || proc=pentiumpro
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if test "$proc" = "i686" || test "$proc" = "pentium-mmx"; then
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cc_check -march=$proc -mcpu=$proc || proc=i586
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fi
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if test "$proc" = "pentiumpro" ; then
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cc_check -march=$proc -mcpu=$proc || proc=pentium
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fi
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if test "$proc" = "pentium" ; then
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if test "$proc" = "i586" ; then
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cc_check -march=$proc -mcpu=$proc || proc=i486
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fi
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if test "$proc" = "i486" ; then
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@ -643,6 +686,11 @@ EOF
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echores "Your $_cc does not support even \"i386\" for '-march' and '-mcpu'."
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_mcpu=""
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_march=""
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_optimizing=""
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elif test "$proc" = "i586-i686"; then
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_march="-march=i586"
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_mcpu="-mcpu=i686"
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_optimizing="$proc"
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else
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_march="-march=$proc"
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_mcpu="-mcpu=$proc"
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@ -660,15 +708,22 @@ EOF
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## Gabucino : --target takes effect here (hopefully...) by overwriting
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## autodetected mcpu/march parameters
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if test "$_target" ; then
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_march="-march=$host_arch"
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_mcpu="-mcpu=$host_arch"
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proc="$_target"
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# Note: this has to be extended
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# TODO: it may be a good idea to check GCC and fallback in all cases
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if test "$host_arch" = "i586-i686"; then
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_march="-march=i586"
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_mcpu="-mcpu=i686"
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else
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_march="-march=$host_arch"
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_mcpu="-mcpu=$host_arch"
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fi
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proc="$host_arch"
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case "$proc" in
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i386*) iproc=386 ;;
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i486*) iproc=486 ;;
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i586*) iproc=586 ;;
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i686*) iproc=686 ;;
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i386) iproc=386 ;;
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i486) iproc=486 ;;
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i586|k5|k6|k6-2|k6-3|pentium|pentium-mmx) iproc=586 ;;
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i686|athlon*|pentium*) iproc=686 ;;
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*) iproc=586 ;;
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esac
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fi
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