fix target/21051

[Richard Henderson]

Dumb.


r~


        * builtins.c (expand_builtin) <BUILT_IN_BOOL_COMPARE_AND_SWAP_*>:
        Use the mode of boolean_type_node when the user doesn't provide one.
        * config/ia64/sync.md (sync_lock_release<I48MODE>): Use operand 1.

Index: gcc/builtins.c
===================================================================
RCS file: /cvs/gcc/gcc/gcc/builtins.c,v
retrieving revision 1.454
diff -u -p -d -r1.454 builtins.c
--- gcc/builtins.c	15 Apr 2005 05:43:46 -0000	1.454
+++ gcc/builtins.c	16 Apr 2005 23:15:48 -0000
@@ -6178,6 +6178,8 @@ expand_builtin (tree exp, rtx target, rt
     case BUILT_IN_BOOL_COMPARE_AND_SWAP_2:
     case BUILT_IN_BOOL_COMPARE_AND_SWAP_4:
     case BUILT_IN_BOOL_COMPARE_AND_SWAP_8:
+      if (mode == VOIDmode)
+	mode = TYPE_MODE (boolean_type_node);
       if (!target || !register_operand (target, mode))
 	target = gen_reg_rtx (mode);
       target = expand_builtin_compare_and_swap (arglist, true, target);
Index: gcc/config/ia64/sync.md
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/ia64/sync.md,v
retrieving revision 1.1
diff -u -p -d -r1.1 sync.md
--- gcc/config/ia64/sync.md	14 Apr 2005 23:53:02 -0000	1.1
+++ gcc/config/ia64/sync.md	16 Apr 2005 23:15:48 -0000
@@ -114,7 +114,7 @@
 
 (define_expand "sync_lock_release<mode>"
   [(set (match_operand:I48MODE 0 "memory_operand" "")
-        (const_int 0))]
+	(match_operand:I48MODE 1 "gr_reg_or_0_operand" ""))]
   ""
 {
   gcc_assert (MEM_VOLATILE_P (operands[0]));