flow.c: Move all basic block reordering code into its own file.

	* flow.c: Move all basic block reordering code into its own file.
	(create_basic_block): Externalize.
	* bb-reorder.c: New file. Copy all basic block reordering code from
	flow.c to this file.
	(reorder_basic_blocks): Fix fencepost error in for-loop.
	(reorder_basic_blocks): Remove braces from single statement for-loops.
	* basic-block.h: Add declaration for create_basic_block.
	* Makefile.in: Add rules for bb-reorder.o.

From-SVN: r32585

gcc/ChangeLog

+Thu Mar 16 09:02:19 2000  Jason Eckhardt  <jle@cygnus.com>
+
+	* flow.c: Move all basic block reordering code into its own file.
+	(create_basic_block): Externalize.
+	* bb-reorder.c: New file. Copy all basic block reordering code from
+	flow.c to this file.
+	(reorder_basic_blocks): Fix fencepost error in for-loop.
+	(reorder_basic_blocks): Remove braces from single statement for-loops.
+	* basic-block.h: Add declaration for create_basic_block.
+	* Makefile.in: Add rules for bb-reorder.o.
+
 2000-03-16  Neil Booth  <NeilB@earthling.net>
 
 	* cppinit.c (handle_option):  Implement #unassert directive

gcc/Makefile.in

@@ -675,7 +675,7 @@ OBJS = diagnostic.o \
  insn-opinit.o insn-recog.o insn-extract.o insn-output.o insn-emit.o lcm.o \
  profile.o insn-attrtab.o $(out_object_file) $(EXTRA_OBJS) convert.o \
  mbchar.o dyn-string.o splay-tree.o graph.o sbitmap.o resource.o hash.o \
- predict.o lists.o ggc-common.o $(GGC) simplify-rtx.o ssa.o
+ predict.o lists.o ggc-common.o $(GGC) simplify-rtx.o ssa.o bb-reorder.o
 
 # GEN files are listed separately, so they can be built before doing parallel
 #  makes for cc1 or cc1plus.  Otherwise sequent parallel make attempts to load
@@ -1632,6 +1632,9 @@ predict.o: predict.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h \
    insn-config.h $(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h output.h toplev.h \
    $(RECOG_H) insn-flags.h function.h except.h $(EXPR_H)
 lists.o: lists.c $(CONFIG_H) system.h toplev.h $(RTL_H) ggc.h
+bb-reorder.o : bb-reorder.c $(CONFIG_H) system.h $(RTL_H) $(TREE_H) flags.h \
+   insn-config.h $(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h output.h toplev.h \
+   $(RECOG_H) insn-flags.h function.h except.h $(EXPR_H)
 
 $(out_object_file): $(out_file) $(CONFIG_H) $(TREE_H) ggc.h \
    $(RTL_H) $(REGS_H) hard-reg-set.h real.h insn-config.h conditions.h \

gcc/basic-block.h

@@ -227,6 +227,7 @@ extern void flow_delete_insn_chain	PARAMS ((rtx, rtx));
 extern void make_edge			PARAMS ((sbitmap *, basic_block,
 						 basic_block, int));
 extern void remove_edge			PARAMS ((edge));
+extern void create_basic_block		PARAMS ((int, rtx, rtx, rtx));
 
 
 /* Structure to hold information for each natural loop.  */