ggc.h (struct rtx_def): Forward declare.

        * ggc.h (struct rtx_def): Forward declare.

        * print-rtl.c (debug_rtx_range): New.
        * rtl.h (debug_rtx_range): Declare.

        * varray.h (VARRAY_ACTIVE_SIZE, VARRAY_POP_ALL): New.

From-SVN: r32996

gcc/ChangeLog

 2000-04-07  Richard Henderson  <rth@cygnus.com>
 
+	* ggc.h (struct rtx_def): Forward declare.
+
+	* print-rtl.c (debug_rtx_range): New.
+	* rtl.h (debug_rtx_range): Declare.
+
+	* varray.h (VARRAY_ACTIVE_SIZE, VARRAY_POP_ALL): New.
+
 	* gcse.c (gcse_main): Don't rebuild the CFG here.
 	(delete_null_pointer_checks): Likewise.
 	* ssa.c (convert_to_ssa): Likewise.

gcc/ggc.h

@@ -37,6 +37,7 @@ struct emit_status;
 struct expr_status;
 struct hash_table;
 struct label_node;
+struct rtx_def;
 struct rtvec_def;
 struct stmt_status;
 union  tree_node;

gcc/print-rtl.c

@@ -450,6 +450,21 @@ debug_rtx_list (x, n)
     debug_rtx (insn);
 }
 
+/* Call this function to print an rtx list from START to END inclusive.  */
+
+void
+debug_rtx_range (start, end)
+     rtx start, end;
+{
+  while (1)
+    {
+      debug_rtx (start);
+      if (!start || start == end)
+	break;
+      start = NEXT_INSN (start);
+    }
+}
+
 /* Call this function to search an rtx list to find one with insn uid UID,
    and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT.
    The found insn is returned to enable further debugging analysis.  */

gcc/rtl.h

@@ -1564,6 +1564,7 @@ extern void fix_sched_param		PARAMS ((const char *, const char *));
 /* In print-rtl.c */
 extern void debug_rtx			PARAMS ((rtx));
 extern void debug_rtx_list		PARAMS ((rtx, int));
+extern void debug_rtx_range		PARAMS ((rtx, rtx));
 extern rtx debug_rtx_find		PARAMS ((rtx, int));
 #ifdef BUFSIZ
 extern void print_rtl			PARAMS ((FILE *, rtx));

gcc/varray.h

@@ -168,6 +168,9 @@ extern varray_type varray_grow	PARAMS ((varray_type, size_t));
 
 #define VARRAY_SIZE(VA)	((VA)->num_elements)
 
+#define VARRAY_ACTIVE_SIZE(VA)	((VA)->elements_used)
+#define VARRAY_POP_ALL(VA)	((VA)->elements_used = 0)
+
 /* Check for VARRAY_xxx macros being in bound.  */
 #if defined ENABLE_CHECKING && (GCC_VERSION >= 2007)
 extern void varray_check_failed PARAMS ((varray_type, size_t,