re PR c/39712 (type mismatch in address expression)

2009-04-11  Richard Guenther  <rguenther@suse.de>

	PR c/39712
	* c-gimplify.c (c_gimplify_expr): Adjust check for mismatched
	address expressions.

	* gcc.dg/pr39712.c: New testcase.

From-SVN: r145950

gcc/ChangeLog

+2009-04-11  Richard Guenther  <rguenther@suse.de>
+
+	PR c/39712
+	* c-gimplify.c (c_gimplify_expr): Adjust check for mismatched
+	address expressions.
+
 2009-04-11  Dave Korn  <dave.korn.cygwin@gmail.com>
 
 	* config/i386/cygwin-stdint.h (INT_LEAST32_TYPE):  Update to

gcc/c-gimplify.c

@@ -201,7 +201,8 @@ c_gimplify_expr (tree *expr_p, gimple_seq *pre_p ATTRIBUTE_UNUSED,
      ADDR_EXPR instead and wrap a conversion around it.  */
   if (code == ADDR_EXPR
       && TREE_CODE (TREE_TYPE (TREE_OPERAND (*expr_p, 0))) == ARRAY_TYPE
-      && TREE_CODE (TREE_TYPE (TREE_TYPE (*expr_p))) != ARRAY_TYPE)
+      && !lang_hooks.types_compatible_p (TREE_TYPE (TREE_TYPE (*expr_p)),
+					 TREE_TYPE (TREE_OPERAND (*expr_p, 0))))
     {
       tree type = TREE_TYPE (*expr_p);
       TREE_TYPE (*expr_p)

gcc/testsuite/ChangeLog

+2009-04-10  Richard Guenther  <rguenther@suse.de>
+
+	PR c/39712
+	* gcc.dg/pr39712.c: New testcase.
+
 2009-04-10  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR c++/28301

gcc/testsuite/gcc.dg/pr39712.c

+/* { dg-do compile } */
+
+int is_table[2][16];
+int is_table_lsf[2][2][16];
+void compute_stereo()
+{
+  int (*is_tab)[16];
+  is_tab = is_table;
+}