* Integrate Haifa instruction scheduler.

        * Integrate regmove pass.
See ChangeLog for deatils.

From-SVN: r14770

1 files changed, 22 insertions, 0 deletions

diff --git a/gcc/configure b/gcc/configure
index 64999d034ab..74dd86eeead 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -4361,6 +4361,26 @@ if [ ! -f Makefile.in ]; then
 	echo "source ${srcdir}/.gdbinit" >> .gdbinit
 fi
 
+# Override SCHED_OBJ and SCHED_CFLAGS to enable the Haifa scheduler.
+sched_prefix=
+sched_cflags=
+if [[ x$enable_haifa = xyes ]]; then
+    echo "Using the Haifa scheduler."
+    sched_prefix=haifa-
+    sched_cflags=-DHAIFA
+fi
+
+
+if [[ x$enable_haifa != x ]]; then
+    # Explicitly remove files that need to be recompiled for the Haifa scheduler.
+    for x in genattrtab.o toplev.o loop.o unroll.o *sched.o; do
+	if [ -f $x ]; then
+	    echo "Removing $x"
+	    rm -f $x
+	fi
+    done
+fi
+
 # Process the language and host/target makefile fragments.
 ${CONFIG_SHELL-/bin/sh} $srcdir/configure.frag $srcdir "$subdirs" "$dep_host_xmake_file" "$dep_tmake_file"
 
@@ -4602,6 +4622,8 @@ s%@CC@%$CC%g
 s%@SET_MAKE@%$SET_MAKE%g
 s%@CPP@%$CPP%g
 s%@manext@%$manext%g
+s%@sched_prefix@%$sched_prefix%g
+s%@sched_cflags@%$sched_cflags%g
 s%@objext@%$objext%g
 s%@subdirs@%$subdirs%g
 s%@all_languages@%$all_languages%g