diff options
Diffstat (limited to 'pixman/configure.ac')
| -rw-r--r-- | pixman/configure.ac | 56 |
1 files changed, 52 insertions, 4 deletions
diff --git a/pixman/configure.ac b/pixman/configure.ac index dc523df0f..481d0bb00 100644 --- a/pixman/configure.ac +++ b/pixman/configure.ac @@ -303,7 +303,7 @@ CFLAGS=$xserver_save_CFLAGS AC_ARG_ENABLE(mmx, [AC_HELP_STRING([--disable-mmx], - [disable MMX fast paths])], + [disable x86 MMX fast paths])], [enable_mmx=$enableval], [enable_mmx=auto]) if test $enable_mmx = no ; then @@ -311,17 +311,17 @@ if test $enable_mmx = no ; then fi if test $have_mmx_intrinsics = yes ; then - AC_DEFINE(USE_MMX, 1, [use MMX compiler intrinsics]) + AC_DEFINE(USE_X86_MMX, 1, [use x86 MMX compiler intrinsics]) else MMX_CFLAGS= fi AC_MSG_RESULT($have_mmx_intrinsics) if test $enable_mmx = yes && test $have_mmx_intrinsics = no ; then - AC_MSG_ERROR([MMX intrinsics not detected]) + AC_MSG_ERROR([x86 MMX intrinsics not detected]) fi -AM_CONDITIONAL(USE_MMX, test $have_mmx_intrinsics = yes) +AM_CONDITIONAL(USE_X86_MMX, test $have_mmx_intrinsics = yes) dnl =========================================================================== dnl Check for SSE2 @@ -540,6 +540,54 @@ if test $enable_arm_neon = yes && test $have_arm_neon = no ; then AC_MSG_ERROR([ARM NEON intrinsics not detected]) fi +dnl =========================================================================== +dnl Check for IWMMXT + +if test "x$IWMMXT_CFLAGS" = "x" ; then + IWMMXT_CFLAGS="-march=iwmmxt -flax-vector-conversions -Winline" +fi + +have_iwmmxt_intrinsics=no +AC_MSG_CHECKING(whether to use ARM IWMMXT intrinsics) +xserver_save_CFLAGS=$CFLAGS +CFLAGS="$IWMMXT_CFLAGS $CFLAGS" +AC_COMPILE_IFELSE([ +#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 3 && __GNUC_MINOR__ < 6)) +#error "Need GCC >= 4.6 for IWMMXT intrinsics" +#endif +#include <mmintrin.h> +int main () { + union { + __m64 v; + [char c[8];] + } a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} }; + int b = 4; + __m64 c = _mm_srli_si64 (a.v, b); +}], have_iwmmxt_intrinsics=yes) +CFLAGS=$xserver_save_CFLAGS + +AC_ARG_ENABLE(arm-iwmmxt, + [AC_HELP_STRING([--disable-arm-iwmmxt], + [disable ARM IWMMXT fast paths])], + [enable_iwmmxt=$enableval], [enable_iwmmxt=auto]) + +if test $enable_iwmmxt = no ; then + have_iwmmxt_intrinsics=disabled +fi + +if test $have_iwmmxt_intrinsics = yes ; then + AC_DEFINE(USE_ARM_IWMMXT, 1, [use ARM IWMMXT compiler intrinsics]) +else + IWMMXT_CFLAGS= +fi + +AC_MSG_RESULT($have_iwmmxt_intrinsics) +if test $enable_iwmmxt = yes && test $have_iwmmxt_intrinsics = no ; then + AC_MSG_ERROR([IWMMXT intrinsics not detected]) +fi + +AM_CONDITIONAL(USE_ARM_IWMMXT, test $have_iwmmxt_intrinsics = yes) + dnl ========================================================================================= dnl Check for GNU-style inline assembly support |