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#
# Automatic simd compiler feature check by Burkhard Plaum (2006-05-16)
#
dnl GAVL_CHECK_SIMD_INTERNAL (cpumodel)
dnl Check for specific compiler simd features. These include inline
dnl assembly as well as intrinsics. If a feature is detected, have
dnl variable HAVE_feature is set to "true". The following features are
dnl Supported:
dnl MMX: Compiler can compile inline MMX assembly
dnl SSE: Compiler can compile inline SSE assembly
AC_DEFUN([GAVL_CHECK_SIMD_INTERNAL],[
AC_MSG_CHECKING([Architecture])
case $1 in
i[[3-7]]86)
AC_MSG_RESULT(IA32)
ARCH_X86=true
;;
x86_64*)
AC_MSG_RESULT(x86_64)
ARCH_X86=true
ARCH_X86_64=true
;;
powerpc | powerpc64)
AC_MSG_RESULT(PowerPC)
ARCH_PPC=true
;;
*)
AC_MSG_RESULT(unknown)
;;
esac
OLD_CFLAGS=$CFLAGS
CFLAGS=$2
if test x$ARCH_X86 = xtrue; then
dnl
dnl Check for MMX assembly
dnl
AC_MSG_CHECKING([if C compiler accepts MMX assembly])
AC_TRY_COMPILE([],[ __asm__ __volatile__ ("movq" " %" "mm0" ", %" "mm1");],
HAVE_MMX=true)
if test $HAVE_MMX = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for 3Dnow assembly
dnl
AC_MSG_CHECKING([if C compiler accepts 3Dnow assembly])
AC_TRY_COMPILE([],[ __asm__ __volatile__ ("pmulhrw" " %" "mm0" ", %" "mm1");],
HAVE_3DNOW=true)
if test "$HAVE_3DNOW" = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for 3Dnowext assembly
dnl
AC_MSG_CHECKING([if C compiler accepts 3Dnowext assembly])
AC_TRY_COMPILE([],[ __asm__ __volatile__ ("pswapd" " %" "mm0" ", %" "mm0");],
HAVE_3DNOWEXT=true)
if test "$HAVE_3DNOWEXT" = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for SSE assembly
dnl
AC_MSG_CHECKING([if C compiler accepts SSE assembly])
AC_TRY_COMPILE([],[ __asm__ __volatile__ ("movaps" " %" "xmm0" ", %" "xmm1");],
HAVE_SSE=true)
if test $HAVE_SSE = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for SSE2 assembly
dnl
AC_MSG_CHECKING([if C compiler accepts SSE2 assembly])
AC_TRY_COMPILE([],[ __asm__ __volatile__ ("movdqa" " %" "xmm0" ", %" "xmm1");],
HAVE_SSE2=true)
if test $HAVE_SSE2 = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for SSE3 assembly
dnl
AC_MSG_CHECKING([if C compiler accepts SSE3 assembly])
AC_TRY_COMPILE([],[ __asm__ __volatile__ ("addsubpd" " %" "xmm0" ", %" "xmm1");],
HAVE_SSE3=true)
if test $HAVE_SSE3 = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for SSSE3 assembly
dnl
AC_MSG_CHECKING([if C compiler accepts SSSE3 assembly])
AC_TRY_COMPILE([],[ __asm__ __volatile__ ("psignw" " %" "xmm0" ", %" "xmm1");],
HAVE_SSSE3=true)
if test $HAVE_SSSE3 = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for MMX intrinsics
dnl
AC_MSG_CHECKING([if C compiler accepts MMX intrinsics])
AC_TRY_LINK([#include <mmintrin.h>],[__m64 m1, m2; _m_paddb(m1, m2)],HAVE_MMX_INT=true)
if test "$HAVE_MMX_INT" = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for 3Dnow intrinsics
dnl
AC_MSG_CHECKING([if C compiler accepts 3Dnow intrinsics])
AC_TRY_LINK([#include <mm3dnow.h>],[_m_femms();],HAVE_3DNOW_INT=true)
if test "$HAVE_3DNOW_INT" = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for 3Dnowext intrinsics
dnl
AC_MSG_CHECKING([if C compiler accepts 3Dnowext intrinsics])
AC_TRY_LINK([#include <mm3dnow.h>],[__m64 b1;b1 = _m_pswapd(b1);_m_femms();],HAVE_3DNOWEXT_INT=true)
if test "$HAVE_3DNOWEXT_INT" = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for SSE intrinsics
dnl
AC_MSG_CHECKING([if C compiler accepts SSE intrinsics])
AC_TRY_LINK([#include <xmmintrin.h>],[__m128 m1, m2; _mm_add_ss(m1, m2)],HAVE_SSE_INT=true)
if test "$HAVE_SSE_INT" = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl
dnl Check for SSE2 intrinsics
dnl
AC_MSG_CHECKING([if C compiler accepts SSE2 intrinsics])
AC_TRY_LINK([#include <emmintrin.h>],[__m128d m1; m1 = _mm_set1_pd(1.0)],HAVE_SSE2_INT=true)
if test "$HAVE_SSE2_INT" = true; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
fi
CFLAGS=$OLD_CFLAGS
])
dnl GAVL_CHECK_SIMD (cpumodel)
dnl Check for specific compiler simd features. These include inline
dnl assembly as well as intrinsics. If a feature is detected, have
dnl variable HAVE_feature is set to "true". The following features are
dnl Supported:
dnl MMX: Compiler can compile inline MMX assembly
dnl SSE: Compiler can compile inline SSE assembly
AC_DEFUN([GAVL_CHECK_SIMD],[
dnl
dnl Check for SIMD
dnl
AH_TEMPLATE([ARCH_X86], [Intel Architecture (32/64)])
AH_TEMPLATE([ARCH_X86_64], [Intel Architecture (64)])
AH_TEMPLATE([ARCH_PPC], [PowerPC Architecture])
AH_TEMPLATE([HAVE_MMX], [MMX Supported])
AH_TEMPLATE([HAVE_3DNOW], [3Dnow Supported])
AH_TEMPLATE([HAVE_SSE], [SSE Supported])
AH_TEMPLATE([HAVE_SSE2], [SSE2 Supported])
AH_TEMPLATE([HAVE_SSE3], [SSE3 Supported])
AH_TEMPLATE([HAVE_SSSE3], [SSSE3 Supported])
GAVL_CHECK_SIMD_INTERNAL($1, $2)
if test x"$HAVE_MMX" = "xtrue"; then
AC_DEFINE(HAVE_MMX)
fi
AM_CONDITIONAL(HAVE_MMX, test "x$HAVE_MMX" = "xtrue")
if test x"$HAVE_3DNOW" = "xtrue"; then
AC_DEFINE(HAVE_3DNOW)
fi
AM_CONDITIONAL(HAVE_3DNOW, test "x$HAVE_3DNOW" = "xtrue")
if test x"$HAVE_SSE" = "xtrue"; then
AC_DEFINE(HAVE_SSE)
fi
AM_CONDITIONAL(HAVE_SSE, test "x$HAVE_SSE" = "xtrue")
if test x"$HAVE_SSE2" = "xtrue"; then
AC_DEFINE(HAVE_SSE2)
fi
AM_CONDITIONAL(HAVE_SSE2, test "x$HAVE_SSE2" = "xtrue")
if test x"$HAVE_SSE3" = "xtrue"; then
AC_DEFINE(HAVE_SSE3)
fi
AM_CONDITIONAL(HAVE_SSE3, test "x$HAVE_SSE3" = "xtrue")
if test x"$HAVE_SSSE3" = "xtrue"; then
AC_DEFINE(HAVE_SSSE3)
fi
AM_CONDITIONAL(HAVE_SSSE3, test "x$HAVE_SSSE3" = "xtrue")
if test x"$ARCH_X86" = "xtrue"; then
AC_DEFINE(ARCH_X86)
fi
if test x"$ARCH_X86_64" = "xtrue"; then
AC_DEFINE(ARCH_X86_64)
fi
if test x"$ARCH_PPC" = "xtrue"; then
AC_DEFINE(ARCH_PPC)
fi
])
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