re PR tree-optimization/41181 (internal compiler error when using…

re PR tree-optimization/41181 (internal compiler error when using x86_64-w64-mingw32-gcc to build ffmpeg ac3enc.c)

2009-09-05  Richard Guenther  <rguenther@suse.de>

	PR middle-end/41181
	* tree-ssa-ccp.c (maybe_fold_stmt_addition): Use the correct type.

	* gcc.c-torture/compile/pr41181.c: New testcase.

From-SVN: r151455

gcc/ChangeLog

 2009-09-05  Richard Guenther  <rguenther@suse.de>
 
+	PR middle-end/41181
+	* tree-ssa-ccp.c (maybe_fold_stmt_addition): Use the correct type.
+
+2009-09-05  Richard Guenther  <rguenther@suse.de>
+
 	PR debug/41273
 	* tree-ssa-operands.c (get_tmr_operands): Pass through opf_no_vops.
 

gcc/testsuite/ChangeLog

 2009-09-05  Richard Guenther  <rguenther@suse.de>
 
+	PR middle-end/41181
+	* gcc.c-torture/compile/pr41181.c: New testcase.
+
+2009-09-05  Richard Guenther  <rguenther@suse.de>
+
 	PR debug/41273
 	* g++.dg/torture/pr41273.C: New testcase.
 

gcc/testsuite/gcc.c-torture/compile/pr41181.c

+char paths[1024];
+static void x264_slicetype_path(char (*best_paths)[250], int n, int length)
+{
+    __builtin_memcpy (best_paths[n], paths, length);
+}
+void x264_slicetype_analyse(int n, int length)
+{
+    char best_paths[250][250];
+    x264_slicetype_path (best_paths, n, length);
+}

gcc/tree-ssa-ccp.c

@@ -2214,16 +2214,16 @@ maybe_fold_stmt_addition (location_t loc, tree res_type, tree op0, tree op1)
 	      && TREE_CODE (gimple_assign_rhs2 (offset_def)) == INTEGER_CST
 	      && tree_int_cst_equal (gimple_assign_rhs2 (offset_def),
 				     TYPE_SIZE_UNIT (TREE_TYPE (op0))))
-	    return build1 (ADDR_EXPR, res_type,
-			   build4 (ARRAY_REF, TREE_TYPE (op0),
+	    return build_fold_addr_expr
+			  (build4 (ARRAY_REF, TREE_TYPE (op0),
 				   TREE_OPERAND (op0, 0),
 				   gimple_assign_rhs1 (offset_def),
 				   TREE_OPERAND (op0, 2),
 				   TREE_OPERAND (op0, 3)));
 	  else if (integer_onep (TYPE_SIZE_UNIT (TREE_TYPE (op0)))
 		   && gimple_assign_rhs_code (offset_def) != MULT_EXPR)
-	    return build1 (ADDR_EXPR, res_type,
-			   build4 (ARRAY_REF, TREE_TYPE (op0),
+	    return build_fold_addr_expr
+			  (build4 (ARRAY_REF, TREE_TYPE (op0),
 				   TREE_OPERAND (op0, 0),
 				   op1,
 				   TREE_OPERAND (op0, 2),