[PATCH] powerpc-linux argument passing for 128-bit types

[Janis Johnson]

Enabling type checking by default resulted in ICEs on powerpc-linux
for passing arguments of types _Decimal128, _Complex double, and
long double.  This patch fixes that and allows lots of tests in the
GCC testsuite to pass again.

Bootstrapped and regression tested on powerpc64-linux with -m32/-m64.
OK for trunk?

2008-04-03  Janis Johnson  <janis187@us.ibm.com>

	PR target/35713
	* config/rs6000/rs6000.c (rs6000_gimplify_va_arg): Use integer
	  constants of the appropriate size for runtime calculations.

Index: gcc/config/rs6000/rs6000.c
===================================================================
--- gcc/config/rs6000/rs6000.c	(revision 133794)
+++ gcc/config/rs6000/rs6000.c	(working copy)
@@ -6832,7 +6832,8 @@ rs6000_gimplify_va_arg (tree valist, tre
       else if (reg == fpr && TYPE_MODE (type) == TDmode)
 	{
 	  regalign = 1;
-	  t = build2 (BIT_IOR_EXPR, TREE_TYPE (reg), reg, size_int (1));
+	  t = build2 (BIT_IOR_EXPR, TREE_TYPE (reg), reg,
+		      build_int_cst (TREE_TYPE (reg), 1));
 	  u = build2 (MODIFY_EXPR, void_type_node, reg, t);
 	}
 
@@ -6870,7 +6871,8 @@ rs6000_gimplify_va_arg (tree valist, tre
 	{
 	  /* Ensure that we don't find any more args in regs.
 	     Alignment has taken care of for special cases.  */
-	  t = build2 (GIMPLE_MODIFY_STMT, TREE_TYPE (reg), reg, size_int (8));
+	  t = build2 (GIMPLE_MODIFY_STMT, TREE_TYPE (reg), reg,
+	      build_int_cst (TREE_TYPE (reg), 8));
 	  gimplify_and_add (t, pre_p);
 	}
     }