Merge ../mesa into vulkan

1 files changed, 76 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 577ca22..b13a6c2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -396,6 +396,61 @@ fi
 AM_CONDITIONAL([SSE41_SUPPORTED], [test x$SSE41_SUPPORTED = x1])
 AC_SUBST([SSE41_CFLAGS], $SSE41_CFLAGS)
 
+dnl Check for Endianness
+AC_C_BIGENDIAN(
+   little_endian=no,
+   little_endian=yes,
+   little_endian=no,
+   little_endian=no
+)
+
+dnl Check for POWER8 Architecture
+PWR8_CFLAGS="-mpower8-vector"
+have_pwr8_intrinsics=no
+AC_MSG_CHECKING(whether gcc supports -mpower8-vector)
+save_CFLAGS=$CFLAGS
+CFLAGS="$PWR8_CFLAGS $CFLAGS"
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8))
+#error "Need GCC >= 4.8 for sane POWER8 support"
+#endif
+#include <altivec.h>
+int main () {
+    vector unsigned char r;
+    vector unsigned int v = vec_splat_u32 (1);
+    r = __builtin_vec_vgbbd ((vector unsigned char) v);
+    return 0;
+}]])], have_pwr8_intrinsics=yes)
+CFLAGS=$save_CFLAGS
+
+AC_ARG_ENABLE(pwr8,
+   [AC_HELP_STRING([--disable-pwr8-inst],
+                   [disable POWER8-specific instructions])],
+   [enable_pwr8=$enableval], [enable_pwr8=auto])
+
+if test "x$enable_pwr8" = xno ; then
+   have_pwr8_intrinsics=disabled
+fi
+
+if test $have_pwr8_intrinsics = yes && test $little_endian = yes ; then
+   DEFINES="$DEFINES -D_ARCH_PWR8"
+   CXXFLAGS="$CXXFLAGS $PWR8_CFLAGS"
+   CFLAGS="$CFLAGS $PWR8_CFLAGS"
+else
+   PWR8_CFLAGS=
+fi
+
+AC_MSG_RESULT($have_pwr8_intrinsics)
+if test "x$enable_pwr8" = xyes && test $have_pwr8_intrinsics = no ; then
+   AC_MSG_ERROR([POWER8 compiler support not detected])
+fi
+
+if test $have_pwr8_intrinsics = yes && test $little_endian = no ; then
+   AC_MSG_WARN([POWER8 optimization is enabled only on POWER8 Little-Endian])
+fi
+
+AC_SUBST([PWR8_CFLAGS], $PWR8_CFLAGS)
+
 dnl Can't have static and shared libraries, default to static if user
 dnl explicitly requested. If both disabled, set to static since shared
 dnl was explicitly requested.
@@ -421,8 +476,29 @@ AC_ARG_ENABLE([debug],
     [enable_debug="$enableval"],
     [enable_debug=no]
 )
+
+AC_ARG_ENABLE([profile],
+    [AS_HELP_STRING([--enable-profile],
+        [enable profiling of code @<:@default=disabled@:>@])],
+    [enable_profile="$enableval"],
+    [enable_profile=no]
+)
+
+if test "x$enable_profile" = xyes; then
+    DEFINES="$DEFINES -DPROFILE"
+    if test "x$GCC" = xyes; then
+        CFLAGS="$CFLAGS -fno-omit-frame-pointer"
+    fi
+    if test "x$GXX" = xyes; then
+        CXXFLAGS="$CXXFLAGS -fno-omit-frame-pointer"
+    fi
+fi
+
 if test "x$enable_debug" = xyes; then
     DEFINES="$DEFINES -DDEBUG"
+    if test "x$enable_profile" = xyes; then
+        AC_MSG_WARN([Debug and Profile are enabled at the same time])
+    fi
     if test "x$GCC" = xyes; then
         if ! echo "$CFLAGS" | grep -q -e '-g'; then
             CFLAGS="$CFLAGS -g"