builtins.c (std_gimplify_va_arg_expr): Replace PREFERRED_STACK_BOUNDARY with…

builtins.c (std_gimplify_va_arg_expr): Replace PREFERRED_STACK_BOUNDARY with MAX_SUPPORTED_STACK_ALIGNMENT.

2008-07-30  H.J. Lu  <hongjiu.lu@intel.com>

	* builtins.c (std_gimplify_va_arg_expr): Replace
	PREFERRED_STACK_BOUNDARY with MAX_SUPPORTED_STACK_ALIGNMENT.
	* config/i386/i386.c (ix86_gimplify_va_arg): Likewise.

From-SVN: r138340

gcc/ChangeLog

+2008-07-30  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* builtins.c (std_gimplify_va_arg_expr): Replace
+	PREFERRED_STACK_BOUNDARY with MAX_SUPPORTED_STACK_ALIGNMENT.
+	* config/i386/i386.c (ix86_gimplify_va_arg): Likewise.
+
 2008-07-30  Joey Ye  <joey.ye@intel.com>
 	    H.J. Lu  <hongjiu.lu@intel.com>
 

gcc/builtins.c

@@ -4798,11 +4798,11 @@ std_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
   boundary = FUNCTION_ARG_BOUNDARY (TYPE_MODE (type), type);
 
   /* When we align parameter on stack for caller, if the parameter
-     alignment is beyond PREFERRED_STACK_BOUNDARY, it will be
-     aligned at PREFERRED_STACK_BOUNDARY.  We will match callee
+     alignment is beyond MAX_SUPPORTED_STACK_ALIGNMENT, it will be
+     aligned at MAX_SUPPORTED_STACK_ALIGNMENT.  We will match callee
      here with caller.  */
-  if (boundary > PREFERRED_STACK_BOUNDARY)
-    boundary = PREFERRED_STACK_BOUNDARY;
+  if (boundary > MAX_SUPPORTED_STACK_ALIGNMENT)
+    boundary = MAX_SUPPORTED_STACK_ALIGNMENT;
 
   boundary /= BITS_PER_UNIT;
 

gcc/config/i386/i386.c

@@ -6585,12 +6585,12 @@ ix86_gimplify_va_arg (tree valist, tree type, gimple_seq *pre_p,
   /* ... otherwise out of the overflow area.  */
 
   /* When we align parameter on stack for caller, if the parameter
-     alignment is beyond PREFERRED_STACK_BOUNDARY, it will be
-     aligned at PREFERRED_STACK_BOUNDARY.  We will match callee
+     alignment is beyond MAX_SUPPORTED_STACK_ALIGNMENT, it will be
+     aligned at MAX_SUPPORTED_STACK_ALIGNMENT.  We will match callee
      here with caller.  */
   arg_boundary = FUNCTION_ARG_BOUNDARY (VOIDmode, type);
-  if ((unsigned int) arg_boundary > PREFERRED_STACK_BOUNDARY)
-     arg_boundary = PREFERRED_STACK_BOUNDARY;
+  if ((unsigned int) arg_boundary > MAX_SUPPORTED_STACK_ALIGNMENT)
+    arg_boundary = MAX_SUPPORTED_STACK_ALIGNMENT;
 
   /* Care for on-stack alignment if needed.  */
   if (arg_boundary <= 64