tree-sra.c (tree_non_mode_aligned_mem_p): Strip conversions and return false for invariants.

2011-07-26  Martin Jambor  <mjambor@suse.cz>

	* tree-sra.c (tree_non_mode_aligned_mem_p): Strip conversions and
	return false for invariants.

From-SVN: r176797

gcc/ChangeLog

+2011-07-26  Martin Jambor  <mjambor@suse.cz>
+
+	* tree-sra.c (tree_non_mode_aligned_mem_p): Strip conversions and
+	return false for invariants.
+
 2011-07-26  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.md (add->lea splitter): Implement using SWI

gcc/tree-sra.c

@@ -1075,9 +1075,13 @@ tree_non_mode_aligned_mem_p (tree exp)
   enum machine_mode mode = TYPE_MODE (TREE_TYPE (exp));
   unsigned int align;
 
+  if (TREE_CODE (exp) == VIEW_CONVERT_EXPR)
+    exp = TREE_OPERAND (exp, 0);
+
   if (TREE_CODE (exp) == SSA_NAME
       || TREE_CODE (exp) == MEM_REF
       || mode == BLKmode
+      || is_gimple_min_invariant (exp)
       || !STRICT_ALIGNMENT)
     return false;