Preparation for PR rtl-optimization/20070 / part1

2005-12-07  J"orn Rennecke <joern.rennecke@st.com>

	Preparation for PR rtl-optimization/20070 / part1
	* basic-block.h (insns_match_p, flow_find_cross_jump): Declare.
	* cfgcleanup.c (condjump_equiv_p): New function, broken out of
	outgoing_edges_match.
	(outgoing_edges_match): Use condjump_equiv_p.
	(merge_memattrs, insns_match_p, flow_find_cross_jump): Move from here
	into..
	* struct-equiv.c: New file.
	(death_notes_match_p) New function, broken out of insns_match_p.
	* Makefile.in (OBJS-common): Add struct-equiv.o.
	(struct-equiv.o): New target.

From-SVN: r108164

gcc/ChangeLog

+2005-12-07  J"orn Rennecke <joern.rennecke@st.com>
+
+	Preparation for PR rtl-optimization/20070 / part1
+	* basic-block.h (insns_match_p, flow_find_cross_jump): Declare.
+	* cfgcleanup.c (condjump_equiv_p): New function, broken out of
+	outgoing_edges_match.
+	(outgoing_edges_match): Use condjump_equiv_p.
+	(merge_memattrs, insns_match_p, flow_find_cross_jump): Move from here
+	into..
+	* struct-equiv.c: New file.
+	(death_notes_match_p) New function, broken out of insns_match_p.
+	* Makefile.in (OBJS-common): Add struct-equiv.o.
+	(struct-equiv.o): New target.
+
 2005-12-07  Richard Sandiford  <richard@codesourcery.com>
 
 	* coretypes.h: Revert previous change.

gcc/Makefile.in

@@ -985,7 +985,7 @@ OBJS-common = \
  reload.o reload1.o reorg.o resource.o rtl.o rtlanal.o rtl-error.o	   \
  sbitmap.o sched-deps.o sched-ebb.o sched-rgn.o sched-vis.o sdbout.o	   \
  simplify-rtx.o sreal.o stmt.o stor-layout.o stringpool.o		   \
- targhooks.o timevar.o toplev.o tracer.o tree.o tree-dump.o		   \
+ struct-equiv.o targhooks.o timevar.o toplev.o tracer.o tree.o tree-dump.o \
  varasm.o varray.o vec.o version.o vmsdbgout.o xcoffout.o alloc-pool.o	   \
  et-forest.o cfghooks.o bt-load.o pretty-print.o $(GGC) web.o passes.o	   \
  tree-profile.o rtlhooks.o cfgexpand.o lambda-mat.o    			   \
@@ -2361,6 +2361,10 @@ cfgloop.o : cfgloop.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) coretypes.h $(TM_H) \
 cfgloopanal.o : cfgloopanal.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) \
    $(BASIC_BLOCK_H) hard-reg-set.h $(CFGLOOP_H) $(EXPR_H) coretypes.h $(TM_H) \
    $(OBSTACK_H) output.h
+struct-equiv.o : struct-equiv.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
+   $(RTL_H) hard-reg-set.h output.h $(FLAGS_H) $(RECOG_H) \
+   insn-config.h $(TARGET_H) $(TM_P_H) $(PARAMS_H) \
+   $(REGS_H) $(EMIT_RTL_H)
 loop-iv.o : loop-iv.c $(CONFIG_H) $(SYSTEM_H) $(RTL_H) $(BASIC_BLOCK_H) \
    hard-reg-set.h $(CFGLOOP_H) $(EXPR_H) coretypes.h $(TM_H) $(OBSTACK_H) \
    output.h intl.h

gcc/basic-block.h

@@ -991,4 +991,8 @@ extern basic_block get_bb_copy (basic_block);
 
 #include "cfghooks.h"
 
+/* In struct-equiv.c */
+extern bool insns_match_p (int, rtx, rtx);
+extern int flow_find_cross_jump (int, basic_block, basic_block, rtx *, rtx *);
+
 #endif /* GCC_BASIC_BLOCK_H */