tree-sra.c (sra_walk_expr): Add linebreaks.

	* tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
	vectors might cause maybe_lookup_element_for_expr to be called
	on non-sra-candidate.

From-SVN: r121578

gcc/ChangeLog

+2007-02-04  Jan Hubicka  <jh@suse.cz>
+
+	* tree-sra.c (sra_walk_expr): Add linebreaks. BITFIELD_REFs into
+	vectors might cause maybe_lookup_element_for_expr to be called
+	on non-sra-candidate.
+
 2007-02-04  Kazu Hirata  <kazu@codesourcery.com>
 
 	* config/bfin/bfin-modes.def, config/bfin/bfin.c,

gcc/tree-sra.c

@@ -793,10 +793,13 @@ sra_walk_expr (tree *expr_p, block_stmt_iterator *bsi, bool is_output,
 	/* A bit field reference to a specific vector is scalarized but for
 	   ones for inputs need to be marked as used on the left hand size so
 	   when we scalarize it, we can mark that variable as non renamable.  */
-	if (is_output && TREE_CODE (TREE_TYPE (TREE_OPERAND (inner, 0))) == VECTOR_TYPE)
+	if (is_output
+	    && TREE_CODE (TREE_TYPE (TREE_OPERAND (inner, 0))) == VECTOR_TYPE)
 	  {
-	    struct sra_elt *elt = maybe_lookup_element_for_expr (TREE_OPERAND (inner, 0));
-	    elt->is_vector_lhs = true;
+	    struct sra_elt *elt
+	      = maybe_lookup_element_for_expr (TREE_OPERAND (inner, 0));
+	    if (elt)
+	      elt->is_vector_lhs = true;
 	  }
 	/* A bit field reference (access to *multiple* fields simultaneously)
 	   is not currently scalarized.  Consider this an access to the