combine.c: Include obstack.h.

	* combine.c: Include obstack.h.
	(struct insn_link): Define.
	(uid_log_links): Adjust type.
	(FOR_EACH_LOG_LINK): New macro.
	(insn_link_obstack): Declare.
	(alloc_insn_link): Define.
	(create_log_links): Call it.  Use FOR_EACH_LOG_LINK and adjust
	type of link variables.
	(find_single_use, insn_a_feeds_b, combine_instructions): Likewise.
	(try_combine, record_promoted_values, distribute_notes): Likewise.
	(distribute_links): Likewise.  Tweak prototype.
	(clear_log_links): Delete.
	(adjust_for_new_dest): Call alloc_insn_link.
	* Makefile.in (combine.o): Depend on $(OBSTACK_H).

From-SVN: r171993

gcc/ChangeLog

 2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
 
+	* combine.c: Include obstack.h.
+	(struct insn_link): Define.
+	(uid_log_links): Adjust type.
+	(FOR_EACH_LOG_LINK): New macro.
+	(insn_link_obstack): Declare.
+	(alloc_insn_link): Define.
+	(create_log_links): Call it.  Use FOR_EACH_LOG_LINK and adjust
+	type of link variables.
+	(find_single_use, insn_a_feeds_b, combine_instructions): Likewise.
+	(try_combine, record_promoted_values, distribute_notes): Likewise.
+	(distribute_links): Likewise.  Tweak prototype.
+	(clear_log_links): Delete.
+	(adjust_for_new_dest): Call alloc_insn_link.
+	* Makefile.in (combine.o): Depend on $(OBSTACK_H).
+
+2011-04-05  Nathan Froyd  <froydnj@codesourcery.com>
+
 	* gcse.c (modify_mem_list): Convert to an array of VECs.
 	(canon_modify_mem_list, compute_transp): Tweak formatting.
 	(alloc_gcse_mem): Likewise.  Adjust for modify_mem_list change.

gcc/Makefile.in

@@ -3247,7 +3247,8 @@ combine.o : combine.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
    $(FLAGS_H) $(FUNCTION_H) insn-config.h $(INSN_ATTR_H) $(REGS_H) $(EXPR_H) \
    rtlhooks-def.h $(BASIC_BLOCK_H) $(RECOG_H) hard-reg-set.h \
    $(DIAGNOSTIC_CORE_H) $(TM_P_H) $(TREE_H) $(TARGET_H) output.h $(PARAMS_H) $(OPTABS_H) \
-   insn-codes.h $(TIMEVAR_H) $(TREE_PASS_H) $(DF_H) vecprim.h $(CGRAPH_H)
+   insn-codes.h $(TIMEVAR_H) $(TREE_PASS_H) $(DF_H) vecprim.h $(CGRAPH_H) \
+   $(OBSTACK_H)
 reginfo.o : reginfo.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
    hard-reg-set.h $(FLAGS_H) $(BASIC_BLOCK_H) addresses.h $(REGS_H) \
    insn-config.h $(RECOG_H) reload.h $(DIAGNOSTIC_CORE_H) \