+2011-12-09 Aldy Hernandez <aldyh@redhat.com>
+
+ PR/51291
+ * tree.c (build_common_builtin_nodes): Do not use TM_PURE
+ attribute unless language has support for TM.
+ * config/i386/i386.c (ix86_init_tm_builtins): Exit gracefully in
+ the absence of TM builtins.
+
2011-12-09 Eric Botcazou <ebotcazou@adacore.com>
* gimple-fold.c (gimple_fold_stmt_to_constant_1) <GIMPLE_UNARY_RHS>:
if (!flag_tm)
return;
+ /* If there are no builtins defined, we must be compiling in a
+ language without trans-mem support. */
+ if (!builtin_decl_explicit_p (BUILT_IN_TM_LOAD_1))
+ return;
+
/* Use whatever attributes a normal TM load has. */
decl = builtin_decl_explicit (BUILT_IN_TM_LOAD_1);
attrs_load = DECL_ATTRIBUTES (decl);
build_common_builtin_nodes (void)
{
tree tmp, ftype;
+ int ecf_flags;
if (!builtin_decl_explicit_p (BUILT_IN_MEMCPY)
|| !builtin_decl_explicit_p (BUILT_IN_MEMMOVE))
its value in the landing pad. */
ftype = build_function_type_list (ptr_type_node,
integer_type_node, NULL_TREE);
+ ecf_flags = ECF_PURE | ECF_NOTHROW | ECF_LEAF;
+ /* Only use TM_PURE if we we have TM language support. */
+ if (builtin_decl_explicit_p (BUILT_IN_TM_LOAD_1))
+ ecf_flags |= ECF_TM_PURE;
local_define_builtin ("__builtin_eh_pointer", ftype, BUILT_IN_EH_POINTER,
- "__builtin_eh_pointer",
- ECF_PURE | ECF_NOTHROW | ECF_LEAF | ECF_TM_PURE);
+ "__builtin_eh_pointer", ecf_flags);
tmp = lang_hooks.types.type_for_mode (targetm.eh_return_filter_mode (), 0);
ftype = build_function_type_list (tmp, integer_type_node, NULL_TREE);