emit-rtl.c (emit_jump_insn_before, [...]): Fix uninitialized variable.

	* emit-rtl.c (emit_jump_insn_before, emit_call_insn_before,
	emit_jump_insn): Fix uninitialized variable.
	* gcov.c (init_line_info): Likewise.
	* genautomata.c (transform_3): Add braces around ambiguous
	else.
	* ifcvt.c (cond_exec_process_insns): Mark parameter with
	ATTRIBUTE_UNUSED.
	* ra-build.c (parts_to_webs_1): Fix uninitialized variable.
	* regrename.c (copyprop_hardreg_forward): Fix uninitialized
	variable.

From-SVN: r56182

gcc/ChangeLog

 2002-08-10  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
+	* emit-rtl.c (emit_jump_insn_before, emit_call_insn_before,
+	emit_jump_insn): Fix uninitialized variable.
+	* gcov.c (init_line_info): Likewise.
+	* genautomata.c (transform_3): Add braces around ambiguous
+	else.
+	* ifcvt.c (cond_exec_process_insns): Mark parameter with
+	ATTRIBUTE_UNUSED.
+	* ra-build.c (parts_to_webs_1): Fix uninitialized variable.
+	* regrename.c (copyprop_hardreg_forward): Fix uninitialized
+	variable.
+
 	* gengtype.c (write_gc_structure_fields): Avoid signed/unsigned
 	warnings in output files.
 

gcc/emit-rtl.c

@@ -3974,7 +3974,7 @@ rtx
 emit_jump_insn_before (x, before)
      rtx x, before;
 {
-  rtx insn, last;
+  rtx insn, last = NULL_RTX;
 
 #ifdef ENABLE_RTL_CHECKING
   if (before == NULL_RTX)
@@ -4021,7 +4021,7 @@ rtx
 emit_call_insn_before (x, before)
      rtx x, before;
 {
-  rtx last, insn;
+  rtx last = NULL_RTX, insn;
 
 #ifdef ENABLE_RTL_CHECKING
   if (before == NULL_RTX)
@@ -4506,7 +4506,7 @@ rtx
 emit_jump_insn (x)
      rtx x;
 {
-  rtx last, insn;
+  rtx last = NULL_RTX, insn;
 
   switch (GET_CODE (x))
     {

gcc/gcov.c

@@ -1308,7 +1308,7 @@ init_line_info (line_info, total, maxlineno)
   char *ptr = bb_data;
   long count;
   long line_num;
-  struct line_info *line_ptr; /* line info ptr. */
+  struct line_info *line_ptr = 0; /* line info ptr. */
    
   memset (&function, 0, sizeof (function));
   if (output_function_summary)

gcc/genautomata.c

@@ -4983,6 +4983,7 @@ transform_3 (regexp)
       max_seq_length = 0;
       if (regexp->mode == rm_allof)
 	for (i = 0; i < REGEXP_ALLOF (regexp)->regexps_num; i++)
+	  {
 	    if (REGEXP_ALLOF (regexp)->regexps [i]->mode == rm_sequence)
 	      {
 		seq = REGEXP_ALLOF (regexp)->regexps [i];
@@ -4994,6 +4995,7 @@ transform_3 (regexp)
 		max_seq_length = 0;
 		break;
 	      }
+	  }
       if (max_seq_length != 0)
 	{
 	  if (max_seq_length == 1 || REGEXP_ALLOF (regexp)->regexps_num <= 1)

gcc/ifcvt.c

@@ -224,7 +224,7 @@ block_fallthru (bb)
 
 static int
 cond_exec_process_insns (ce_info, start, end, test, prob_val, mod_ok)
-     ce_if_block_t *ce_info;	/* if block information */
+     ce_if_block_t *ce_info ATTRIBUTE_UNUSED;	/* if block information */
      rtx start;			/* first insn to look at */
      rtx end;			/* last insn to look at */
      rtx test;			/* conditional execution test */

gcc/ra-build.c

@@ -1815,7 +1815,7 @@ parts_to_webs_1 (df, copy_webs, all_refs)
   webnum = 0;
   for (i = 0; i < def_id + use_id; i++)
     {
-      struct web *web, *subweb;
+      struct web *subweb, *web = 0; /* Initialize web to silence warnings.  */
       struct web_part *wp = &web_parts[i];
       struct ref *ref = wp->ref;
       unsigned int ref_id;

gcc/regrename.c

@@ -1780,7 +1780,7 @@ copyprop_hardreg_forward ()
 {
   struct value_data *all_vd;
   bool need_refresh;
-  basic_block bb, bbp;
+  basic_block bb, bbp = 0;
 
   need_refresh = false;