Alpha parts. Note that now the machine-independent
__builtin_thread_pointer() is now marked as const/readonly, slightly
different from the original alpha backend code.
Thanks,
Chung-Lin
* config/alpha/alpha.c (alpha_builtin): Remove
ALPHA_BUILTIN_THREAD_POINTER, ALPHA_BUILTIN_SET_THREAD_POINTER.
(code_for_builtin): Remove CODE_FOR_load_tp, CODE_FOR_set_tp.
(alpha_init_builtins): Remove __builtin_thread_pointer,
__builtin_set_thread_pointer machine-specific builtins.
(alpha_expand_builtin_thread_pointer): Add hook function for
TARGET_EXPAND_BUILTIN_THREAD_POINTER.
(alpha_expand_builtin_set_thread_pointer): Add hook function for
TARGET_EXPAND_BUILTIN_SET_THREAD_POINTER.
(alpha_fold_builtin): Remove ALPHA_BUILTIN_THREAD_POINTER,
ALPHA_BUILTIN_SET_THREAD_POINTER cases.
Index: config/alpha/alpha.c
===================================================================
--- config/alpha/alpha.c (revision 189431)
+++ config/alpha/alpha.c (working copy)
@@ -6317,8 +6317,6 @@ enum alpha_builtin
ALPHA_BUILTIN_AMASK,
ALPHA_BUILTIN_IMPLVER,
ALPHA_BUILTIN_RPCC,
- ALPHA_BUILTIN_THREAD_POINTER,
- ALPHA_BUILTIN_SET_THREAD_POINTER,
ALPHA_BUILTIN_ESTABLISH_VMS_CONDITION_HANDLER,
ALPHA_BUILTIN_REVERT_VMS_CONDITION_HANDLER,
@@ -6374,8 +6372,6 @@ static enum insn_code const code_for_builtin[ALPHA
CODE_FOR_builtin_amask,
CODE_FOR_builtin_implver,
CODE_FOR_builtin_rpcc,
- CODE_FOR_load_tp,
- CODE_FOR_set_tp,
CODE_FOR_builtin_establish_vms_condition_handler,
CODE_FOR_builtin_revert_vms_condition_handler,
@@ -6533,14 +6529,6 @@ alpha_init_builtins (void)
alpha_dimode_u, NULL_TREE);
alpha_add_builtins (two_arg_builtins, ARRAY_SIZE (two_arg_builtins), ftype);
- ftype = build_function_type_list (ptr_type_node, NULL_TREE);
- alpha_builtin_function ("__builtin_thread_pointer", ftype,
- ALPHA_BUILTIN_THREAD_POINTER, ECF_NOTHROW);
-
- ftype = build_function_type_list (void_type_node, ptr_type_node, NULL_TREE);
- alpha_builtin_function ("__builtin_set_thread_pointer", ftype,
- ALPHA_BUILTIN_SET_THREAD_POINTER, ECF_NOTHROW);
-
if (TARGET_ABI_OPEN_VMS)
{
ftype = build_function_type_list (ptr_type_node, ptr_type_node,
@@ -6645,7 +6633,20 @@ alpha_expand_builtin (tree exp, rtx target,
return const0_rtx;
}
+static rtx
+alpha_expand_builtin_thread_pointer (rtx target)
+{
+ emit_insn (gen_load_tp (target));
+ return target;
+}
+static void
+alpha_expand_builtin_set_thread_pointer (rtx val)
+{
+ emit_insn (gen_set_tp (val));
+}
+
+
/* Several bits below assume HWI >= 64 bits. This should be enforced
by config.gcc. */
#if HOST_BITS_PER_WIDE_INT < 64
@@ -7077,8 +7078,6 @@ alpha_fold_builtin (tree fndecl, int n_args, tree
case ALPHA_BUILTIN_AMASK:
case ALPHA_BUILTIN_IMPLVER:
case ALPHA_BUILTIN_RPCC:
- case ALPHA_BUILTIN_THREAD_POINTER:
- case ALPHA_BUILTIN_SET_THREAD_POINTER:
/* None of these are foldable at compile-time. */
default:
return NULL;
@@ -9811,6 +9810,11 @@ alpha_conditional_register_usage (void)
#undef TARGET_EXPAND_BUILTIN_VA_START
#define TARGET_EXPAND_BUILTIN_VA_START alpha_va_start
+#undef TARGET_EXPAND_BUILTIN_THREAD_POINTER
+#define TARGET_EXPAND_BUILTIN_THREAD_POINTER
alpha_expand_builtin_thread_pointer
+#undef TARGET_EXPAND_BUILTIN_SET_THREAD_POINTER
+#define TARGET_EXPAND_BUILTIN_SET_THREAD_POINTER
alpha_expand_builtin_set_thread_pointer
+
/* The Alpha architecture does not require sequential consistency. See
http://www.cs.umd.edu/~pugh/java/memoryModel/AlphaReordering.html
for an example of how it can be violated in practice. */
