postreload-gcse.c: Include target.h.

	* postreload-gcse.c: Include target.h.
	(gcse_after_reload_main): Return early if we cannot modify jumps.
	* Makefile.in (postreload-gcse.o): Depend on $(TARGET_H).

From-SVN: r97332

gcc/ChangeLog

+2005-03-31  J"orn Rennecke <joern.rennecke@st.com>
+
+	* postreload-gcse.c: Include target.h.
+	(gcse_after_reload_main): Return early if we cannot modify jumps.
+	* Makefile.in (postreload-gcse.o): Depend on $(TARGET_H).
+
 2005-03-31  David Edelsohn  <edelsohn@gnu.org>
 
 	* tree-ssa-loop-im.c (stmt_cost): Add RDIV_EXPR to list of

gcc/Makefile.in

@@ -2113,7 +2113,7 @@ postreload.o : postreload.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H)
 postreload-gcse.o : postreload-gcse.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
    $(RTL_H) $(REGS_H) hard-reg-set.h $(FLAGS_H) real.h insn-config.h $(GGC_H) \
    $(RECOG_H) $(EXPR_H) $(BASIC_BLOCK_H) function.h output.h toplev.h $(TM_P_H) \
-   except.h $(TREE_H)
+   except.h $(TREE_H) $(TARGET_H)
 caller-save.o : caller-save.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
    $(FLAGS_H) $(REGS_H) hard-reg-set.h insn-config.h $(BASIC_BLOCK_H) function.h \
    $(RECOG_H) reload.h $(EXPR_H) toplev.h $(TM_P_H)

gcc/postreload-gcse.c

@@ -43,6 +43,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #include "obstack.h"
 #include "hashtab.h"
 #include "params.h"
+#include "target.h"
 
 /* The following code implements gcse after reload, the purpose of this
    pass is to cleanup redundant loads generated by reload and other
@@ -1283,6 +1284,10 @@ delete_redundant_insns (void)
 void
 gcse_after_reload_main (rtx f ATTRIBUTE_UNUSED)
 {
+
+  if (targetm.cannot_modify_jumps_p ())
+    return;
+
   memset (&stats, 0, sizeof (stats));
 
   /* Allocate ememory for this pass.