Check MAX_FIXED_MODE_SIZE on bit-field in C++.

gcc/ada/

2010-06-03  H.J. Lu  <hongjiu.lu@intel.com>

	PR c++/44294
	* gcc-interface/decl.c (MAX_FIXED_MODE_SIZE): Removed.

gcc/cp/

2010-06-03  H.J. Lu  <hongjiu.lu@intel.com>

	PR c++/44294
	* class.c (layout_class_type): Check MAX_FIXED_MODE_SIZE on
	bit-field.

gcc/

2010-06-03  H.J. Lu  <hongjiu.lu@intel.com>

	PR c++/44294
	* defaults.h (MAX_FIXED_MODE_SIZE): New.

	* stor-layout.c (MAX_FIXED_MODE_SIZE): Removed.

From-SVN: r160229

gcc/ChangeLog

+2010-06-03  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR c++/44294
+	* defaults.h (MAX_FIXED_MODE_SIZE): New.
+
+	* stor-layout.c (MAX_FIXED_MODE_SIZE): Removed.
+
 2010-06-03  Jakub Jelinek  <jakub@redhat.com>
 
 	PR debug/44375

gcc/ada/ChangeLog

+2010-06-03  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR c++/44294
+	* gcc-interface/decl.c (MAX_FIXED_MODE_SIZE): Removed.
+
 2010-06-01  Arnaud Charlet  <charlet@adacore.com>
 
 	* gnat_ugn.texi: Improve doc on -fdump-ada-spec, mention limitations.

gcc/ada/gcc-interface/decl.c

@@ -55,10 +55,6 @@
 #include "ada-tree.h"
 #include "gigi.h"
 
-#ifndef MAX_FIXED_MODE_SIZE
-#define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (DImode)
-#endif
-
 /* Convention_Stdcall should be processed in a specific way on Windows targets
    only.  The macro below is a helper to avoid having to check for a Windows
    specific attribute throughout this unit.  */

gcc/cp/ChangeLog

+2010-06-03  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR c++/44294
+	* class.c (layout_class_type): Check MAX_FIXED_MODE_SIZE on
+	bit-field.
+
 2010-06-02  Jonathan Wakely  <jwakely.gcc@gmail.com>
 
 	* parser.c (cp_parser_mem_initializer_list): Change error text.

gcc/cp/class.c

@@ -4976,8 +4976,10 @@ layout_class_type (tree t, tree *virtuals_p)
 	     bits as additional padding.  */
 	  for (itk = itk_char; itk != itk_none; ++itk)
 	    if (integer_types[itk] != NULL_TREE
-		&& INT_CST_LT (DECL_SIZE (field),
-			       TYPE_SIZE (integer_types[itk])))
+		&& (INT_CST_LT (size_int (MAX_FIXED_MODE_SIZE),
+				TYPE_SIZE (integer_types[itk]))
+		    || INT_CST_LT (DECL_SIZE (field),
+				   TYPE_SIZE (integer_types[itk]))))
 	      break;
 
 	  /* ITK now indicates a type that is too large for the

gcc/defaults.h

@@ -1165,6 +1165,10 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define CONSTANT_ADDRESS_P(X)   (CONSTANT_P (X) && GET_CODE (X) != CONST_DOUBLE)
 #endif
 
+#ifndef MAX_FIXED_MODE_SIZE
+#define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (DImode)
+#endif
+
 
 #ifdef GCC_INSN_FLAGS_H
 /* Dependent default target macro definitions

gcc/stor-layout.c

@@ -369,10 +369,6 @@ finalize_size_functions (void)
   VEC_free (tree, gc, size_functions);
 }
 
-#ifndef MAX_FIXED_MODE_SIZE
-#define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (DImode)
-#endif
-
 /* Return the machine mode to use for a nonscalar of SIZE bits.  The
    mode must be in class MCLASS, and have exactly that many value bits;
    it may have padding as well.  If LIMIT is nonzero, modes of wider