re PR tree-optimization/33572 (wrong code with -O)

PR tree-optimization/33572
* tree-inline.c (update_ssa_across_abnormal_edges): Tolerate
the absence of a corresponding edge from the exit block.

From-SVN: r129151

gcc/ChangeLog

 2007-10-09  Alexandre Oliva  <aoliva@redhat.com>
 
+	PR tree-optimization/33572
+	* tree-inline.c (update_ssa_across_abnormal_edges): Tolerate
+	the absence of a corresponding edge from the exit block.
+
+2007-10-09  Alexandre Oliva  <aoliva@redhat.com>
+
 	PR middle-end/22156
 	* tree-sra.c (instantiate_element): Use BYTES_BIG_ENDIAN for
 	bit-field layout.

gcc/tree-inline.c

@@ -1055,7 +1055,8 @@ update_ssa_across_abnormal_edges (basic_block bb, basic_block ret_bb,
 	      }
 
 	    re = find_edge (ret_bb, e->dest);
-	    gcc_assert (re);
+	    if (!re)
+	      continue;
 	    gcc_assert ((re->flags & (EDGE_EH | EDGE_ABNORMAL))
 			== (e->flags & (EDGE_EH | EDGE_ABNORMAL)));