macosx: Change the optimizations paramaters.

From the beginning we were using -march=pentium-m -mtune=prescott
However this was based on the Intel development machine of Apple. All actually shipped Intel machines by Apple are at least Core machines. As such, we might as well use -march=prescott -mtune=generic now. For 10.6 I currently think we should use -march=prescott -mtune=core2, since that will allow us to use much more advanced optimizations, and only few machines were shipped as Core, most were Core2 machines.

diff --git a/configure.ac b/configure.ac
index 7ecf0bcf4eab5ae4dbdc9b2d37436eb7221c7ed7..c4ccb785cf58c64888263bfcdab307697c4af7aa 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1625,7 +1625,7 @@ if test -n "${with_tuning}"; then
     fi
 else
     if test "${SYS}" = "darwin" -a "${host_cpu}" != "powerpc"; then
-        CFLAGS_TUNING="-march=pentium-m -mtune=prescott"
+        CFLAGS_TUNING="-march=prescott -mtune=generic"
     elif test "${host_cpu}" = "i686" -o "${host_cpu}" = "i586" -o "${host_cpu}" = "i486" -o "${host_cpu}" = "i386"; then
         CFLAGS_TUNING="-mtune=pentium2"
     elif test "${host_cpu}" = "x86_64"; then

diff --git a/extras/contrib/bootstrap b/extras/contrib/bootstrap
index 93ff3bd3cb0f3299f97ad65bfe35442d9d572455..0cb9e057a7032e1175cdc748b529b7aea1097604 100755 (executable)
--- a/extras/contrib/bootstrap
+++ b/extras/contrib/bootstrap
@@ -158,7 +158,7 @@ case $HOST in
         fi
         echo "ENVP = MACOSX_DEPLOYMENT_TARGET=${SDK_TARGET}" >> config.mak
         echo "MACOSX_SDK = /Developer/SDKs/MacOSX10.5.sdk" >> config.mak
-        CFLAGS_TUNING=" -march=pentium-m -mtune=prescott -arch i386"
+        CFLAGS_TUNING=" -march=prescott -mtune=generic -arch i386"
         EXTRA_CFLAGS=" -D\${ENVP} -isysroot \${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET}"
         EXTRA_LDFLAGS=" -arch i386 -isysroot \${MACOSX_SDK} -Wl,-syslibroot,\${MACOSX_SDK}"
         CC="/Developer/usr/llvm-gcc-4.2/bin/llvm-gcc-4.2"
@@ -181,7 +181,7 @@ case $HOST in
         HAVE_DARWIN_10=1
         echo "ENVP = MACOSX_DEPLOYMENT_TARGET=${SDK_TARGET}" >> config.mak
         echo "MACOSX_SDK = /Developer/SDKs/MacOSX${SDK_TARGET}.sdk" >> config.mak
-        CFLAGS_TUNING=" -march=core2"
+        CFLAGS_TUNING=" -march=prescott -mtune=core2"
         EXTRA_CFLAGS=" -D\${ENVP} -isysroot \${MACOSX_SDK} -mmacosx-version-min=\${SDK_TARGET}"
         EXTRA_LDFLAGS=" -isysroot \${MACOSX_SDK} -Wl,-syslibroot,\${MACOSX_SDK}"
         echo "PATH = /bin:/usr/bin:/usr/local/bin" >> config.mak