basic-block.h (dump_edge_info): Declare.

2001-06-22  Diego Novillo  <dnovillo@redhat.com>

	* basic-block.h (dump_edge_info): Declare.
	(clear_edges): Declare.
	(mark_critical_edges): Declare.
	* flow.c (dump_edge_info): Remove static declaration.
	(clear_edges): Ditto.
	(mark_critical_edges): Ditto.
	(free_basic_block_vars): Only clear edges and free basic block
	array if basic_block_info is not NULL.
	* ssa.c (compute_dominance_frontiers): Remove static declaration.
	* ssa.h (compute_dominance_frontiers): Declare.

From-SVN: r43518

5 files changed, 26 insertions, 11 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 323b21b..057efe4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,16 @@
+2001-06-22  Diego Novillo  <dnovillo@redhat.com>
+
+	* basic-block.h (dump_edge_info): Declare.
+	(clear_edges): Declare.
+	(mark_critical_edges): Declare.
+	* flow.c (dump_edge_info): Remove static declaration.
+	(clear_edges): Ditto.
+	(mark_critical_edges): Ditto.
+	(free_basic_block_vars): Only clear edges and free basic block
+	array if basic_block_info is not NULL.
+	* ssa.c (compute_dominance_frontiers): Remove static declaration.
+	* ssa.h (compute_dominance_frontiers): Declare.
+
 2001-06-22  Toshiyasu Morita  (toshiyasu.morita@hsa.hitachi.com)
 
 	* predict.c: (expected_value_to_br_prob): Check for const_true_rtx
diff --git a/gcc/basic-block.h b/gcc/basic-block.h
index c41ee32..515d222 100644
--- a/gcc/basic-block.h
+++ b/gcc/basic-block.h
@@ -290,6 +290,9 @@ extern int flow_delete_block		PARAMS ((basic_block));
 extern void merge_blocks_nomove		PARAMS ((basic_block, basic_block));
 extern void tidy_fallthru_edge		PARAMS ((edge, basic_block,
 						 basic_block));
+extern void dump_edge_info		PARAMS ((FILE *, edge, int));
+extern void clear_edges			PARAMS ((void));
+extern void mark_critical_edges		PARAMS ((void));
 
 /* Structure to hold information for each natural loop.  */
 struct loop
diff --git a/gcc/flow.c b/gcc/flow.c
index b3d4327..2d7ee80 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -364,12 +364,10 @@ typedef struct depth_first_search_dsS *depth_first_search_ds;
 static int count_basic_blocks		PARAMS ((rtx));
 static void find_basic_blocks_1		PARAMS ((rtx));
 static rtx find_label_refs		PARAMS ((rtx, rtx));
-static void clear_edges			PARAMS ((void));
 static void make_edges			PARAMS ((rtx));
 static void make_label_edge		PARAMS ((sbitmap *, basic_block,
 						 rtx, int));
 static void make_eh_edge		PARAMS ((sbitmap *, basic_block, rtx));
-static void mark_critical_edges		PARAMS ((void));
 
 static void commit_one_edge_insertion	PARAMS ((edge));
 
@@ -434,7 +432,6 @@ static void mark_used_regs		PARAMS ((struct propagate_block_info *,
 						 rtx, rtx, rtx));
 void dump_flow_info			PARAMS ((FILE *));
 void debug_flow_info			PARAMS ((void));
-static void dump_edge_info		PARAMS ((FILE *, edge, int));
 static void print_rtl_and_abort_fcn	PARAMS ((const char *, int,
 						 const char *))
 					ATTRIBUTE_NORETURN;
@@ -1118,7 +1115,7 @@ compute_bb_for_insn (max)
 
 /* Free the memory associated with the edge structures.  */
 
-static void
+void
 clear_edges ()
 {
   int i;
@@ -1432,7 +1429,7 @@ make_eh_edge (edge_cache, src, insn)
 
 /* Identify critical edges and set the bits appropriately.  */
 
-static void
+void
 mark_critical_edges ()
 {
   int i, n = n_basic_blocks;
@@ -3094,8 +3091,11 @@ free_basic_block_vars (keep_head_end_p)
 
   if (! keep_head_end_p)
     {
-      clear_edges ();
-      VARRAY_FREE (basic_block_info);
+      if (basic_block_info)
+	{
+	  clear_edges ();
+	  VARRAY_FREE (basic_block_info);
+	}
       n_basic_blocks = 0;
 
       ENTRY_BLOCK_PTR->aux = NULL;
@@ -6390,7 +6390,7 @@ debug_flow_info ()
   dump_flow_info (stderr);
 }
 
-static void
+void
 dump_edge_info (file, e, do_succ)
      FILE *file;
      edge e;
diff --git a/gcc/ssa.c b/gcc/ssa.c
index 3bb1dff..97e259b 100644
--- a/gcc/ssa.c
+++ b/gcc/ssa.c
@@ -166,8 +166,6 @@ static rtx first_insn_after_basic_block_note
   PARAMS ((basic_block));
 static void compute_dominance_frontiers_1
   PARAMS ((sbitmap *frontiers, int *idom, int bb, sbitmap done));
-static void compute_dominance_frontiers
-  PARAMS ((sbitmap *frontiers, int *idom));
 static void find_evaluations_1
   PARAMS ((rtx dest, rtx set, void *data));
 static void find_evaluations
@@ -558,7 +556,7 @@ compute_dominance_frontiers_1 (frontiers, idom, bb, done)
       }
 }
 
-static void
+void
 compute_dominance_frontiers (frontiers, idom)
      sbitmap *frontiers;
      int *idom;
diff --git a/gcc/ssa.h b/gcc/ssa.h
index 5095319..5eb9785 100644
--- a/gcc/ssa.h
+++ b/gcc/ssa.h
@@ -27,6 +27,7 @@ typedef int (*successor_phi_fn)         PARAMS ((rtx, int, int, void *));
 extern int for_each_successor_phi       PARAMS ((basic_block bb,
 						 successor_phi_fn,
 						 void *));
+void compute_dominance_frontiers	PARAMS ((sbitmap *frontiers, int *idom));
 extern int remove_phi_alternative	PARAMS ((rtx, basic_block));