convert.c (strip_float_extension): Skip both NOP_EXPR and CONVERT_EXPR floating point extensions.

	* convert.c (strip_float_extension): Skip both NOP_EXPR and
	CONVERT_EXPR floating point extensions.

From-SVN: r83565

gcc/ChangeLog

+2004-06-23  Roger Sayle  <roger@eyesopen.com>
+
+	* convert.c (strip_float_extension): Skip both NOP_EXPR and
+	CONVERT_EXPR floating point extensions.
+
 2004-06-23  Diego Novillo  <dnovillo@redhat.com>
 
 	* Makefile.in (tree-vn.o): New.

gcc/convert.c

@@ -99,7 +99,8 @@ strip_float_extensions (tree exp)
 	return build_real (type, real_value_truncate (TYPE_MODE (type), orig));
     }
 
-  if (TREE_CODE (exp) != NOP_EXPR)
+  if (TREE_CODE (exp) != NOP_EXPR
+      && TREE_CODE (exp) != CONVERT_EXPR)
     return exp;
 
   sub = TREE_OPERAND (exp, 0);