tree-sra.c (load_assign_lhs_subreplacements): Do not put replacements with no…

tree-sra.c (load_assign_lhs_subreplacements): Do not put replacements with no initialization to the RHS of debug statements.

2013-02-28  Martin Jambor  <mjambor@suse.cz>

	* tree-sra.c (load_assign_lhs_subreplacements): Do not put replacements
	with no initialization to the RHS of debug statements.

From-SVN: r196341

gcc/ChangeLog

 2013-02-28  Martin Jambor  <mjambor@suse.cz>
 
+	* tree-sra.c (load_assign_lhs_subreplacements): Do not put replacements
+	with no initialization to the RHS of debug statements.
+
+2013-02-28  Martin Jambor  <mjambor@suse.cz>
+
 	PR tree-optimization/56294
 	* tree-sra.c (analyze_access_subtree): Create replacement declarations.
 	Adjust dumping.

gcc/tree-sra.c

@@ -2870,7 +2870,12 @@ load_assign_lhs_subreplacements (struct access *lacc, struct access *top_racc,
 							    lacc->size);
 
 	      if (racc && racc->grp_to_be_replaced)
-		drhs = get_access_replacement (racc);
+		{
+		  if (racc->grp_write)
+		    drhs = get_access_replacement (racc);
+		  else
+		    drhs = NULL;
+		}
 	      else if (*refreshed == SRA_UDH_LEFT)
 		drhs = build_debug_ref_for_model (loc, lacc->base, lacc->offset,
 						  lacc);