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128 lines
2.3 KiB
128 lines
2.3 KiB
#!/bin/sh
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#$Id$
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#
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# returns the CFLAGS for the given compiler (maximum optimizations)
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#
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ARCH=`uname -m |sed -e s/i.86/i386/ -e s/sun4u/sparc64/ `
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# gcc 3.x optimize for:
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x86CPU=athlon
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WARN_ARCH="WARNING: Not tested on architecture $ARCH, using default flags"
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if [ $# -lt 1 ]
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then
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echo "ERROR: you must specify the compiler name" 1>&2
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exit 1
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fi
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if [ "$1" = "-h" ]
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then
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echo "Usage: "
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echo " $0 compiler_name"
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exit 1
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fi
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if CCVER=`./ccver.sh $1`
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then
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NAME=`echo "$CCVER"|cut -d" " -f 1`
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VER=`echo "$CCVER"|cut -d" " -f 2`
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MAJOR_VER=`echo "$CCVER"|cut -d" " -f 3`
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else
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echo "ERROR executing ./ccver.sh" 2>&1
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exit 1
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fi
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echo "name=$NAME, ver=$VER, mver=$MAJOR_VER"
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case $NAME
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in
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gcc)
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#common stuff
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CFLAGS="-O9 -funroll-loops -Winline -Wall"
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case $MAJOR_VER
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in
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3)
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case $ARCH
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in
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i386)
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CFLAGS="$CFLAGS -minline-all-stringops -malign-double"
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CFLAGS="$CFLAGS -falign-loops -march=$x86CPU"
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;;
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sparc64)
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CFLAGS="$CFLAGS -mcpu=ultrasparc -mtune=ultrasparc"
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CFLAGS="$CFLAGS -m32"
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#other interesting options:
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# -mcpu=v9 or ultrasparc? # -mtune implied by -mcpu
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#-mno-epilogue #try to inline function exit code
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#-mflat # omit save/restore
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#-faster-structs #faster non Sparc ABI structure copy
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;;
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armv4l)
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CFLAGS="$CFLAGS -mcpu=strongarm1100"
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;;
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*)
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echo "$WARN_ARCH" 1>&2
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;;
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esac
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;;
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2|*)
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case $ARCH
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in
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i386)
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CFLAGS="$CFLAGS -m486 -malign-loops=4"
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;;
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sparc64)
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CFLAGS="$CFLAGS -mv8 -Wa,-xarch=v8plus"
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;;
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armv4l)
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;;
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*)
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echo "$WARN_ARCH" 1>&2
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;;
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esac
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;;
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esac
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;;
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icc)
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CFLAGS="-O3 -ipo -ipo_obj -unroll"
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case $ARCH
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in
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i386)
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CFLAGS="$CFLAGS -tpp6 -xK"
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#-openmp #optimize for PIII
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# -prefetch doesn't seem to work
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#( ty to inline acroos files, unroll loops,prefetch,
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# optimize for PIII, use PIII instructions & vect.,
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# mutlithread loops)
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;;
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*)
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echo "$WARN_ARCH" 1>&2
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;;
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esac
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;;
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suncc)
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CFLAGS="-xO5 -fast -native -xCC -xc99"
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case $ARCH
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in
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sparc64)
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CFLAGS="$CFLAGS -xarch=v8plusa"
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;;
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*)
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echo "$WARN_ARCH" 1>&2
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;;
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esac
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;;
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*)
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echo "WARNING: unknown compiler $NAME, trying _very_ generic flags" 1>&2
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CFLAGS="-O2"
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esac
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echo "CFLAGS=$CFLAGS"
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