* opts.c (finish_options): Do not fail for -fgnu-tm.
* gimple-streamer-out.c (output_gimple_stmt): Handle GIMPLE_TRANSACTION.
* gimple-streamer-in.c (input_gimple_stmt): Same.
* lto-cgraph.c (input_overwrite_node): Read tm_clone bit.
(lto_output_node): Write tm_clone bit.
lto/
* lto-lang.c (lto_attribute_table): Handle transaction_pure.
(handle_transaction_pure_attribute): New.
From-SVN: r181629
+2011-11-21 Aldy Hernandez <aldyh@redhat.com>
+
+ * opts.c (finish_options): Do not fail for -fgnu-tm.
+ * gimple-streamer-out.c (output_gimple_stmt): Handle GIMPLE_TRANSACTION.
+ * gimple-streamer-in.c (input_gimple_stmt): Same.
+ * lto-cgraph.c (input_overwrite_node): Read tm_clone bit.
+ (lto_output_node): Write tm_clone bit.
+
2011-11-22 Ian Lance Taylor <iant@google.com>
* doc/install.texi (Configuration): Correct doc of
case GIMPLE_PREDICT:
break;
+ case GIMPLE_TRANSACTION:
+ gimple_transaction_set_label (stmt, stream_read_tree (ib, data_in));
+ break;
+
default:
internal_error ("bytecode stream: unknown GIMPLE statement tag %s",
lto_tag_name (tag));
case GIMPLE_PREDICT:
break;
+ case GIMPLE_TRANSACTION:
+ gcc_assert (gimple_transaction_body (stmt) == NULL);
+ stream_write_tree (ob, gimple_transaction_label (stmt), true);
+ break;
+
default:
gcc_unreachable ();
}
bp_pack_value (&bp, node->frequency, 2);
bp_pack_value (&bp, node->only_called_at_startup, 1);
bp_pack_value (&bp, node->only_called_at_exit, 1);
+ bp_pack_value (&bp, node->tm_clone, 1);
bp_pack_value (&bp, node->thunk.thunk_p && !boundary_p, 1);
bp_pack_enum (&bp, ld_plugin_symbol_resolution,
LDPR_NUM_KNOWN, node->resolution);
node->frequency = (enum node_frequency)bp_unpack_value (bp, 2);
node->only_called_at_startup = bp_unpack_value (bp, 1);
node->only_called_at_exit = bp_unpack_value (bp, 1);
+ node->tm_clone = bp_unpack_value (bp, 1);
node->thunk.thunk_p = bp_unpack_value (bp, 1);
node->resolution = bp_unpack_enum (bp, ld_plugin_symbol_resolution,
LDPR_NUM_KNOWN);
+2011-11-21 Aldy Hernandez <aldyh@redhat.com>
+
+ * lto-lang.c (lto_attribute_table): Handle transaction_pure.
+ (handle_transaction_pure_attribute): New.
+
2011-11-03 Richard Guenther <rguenther@suse.de>
PR lto/44965
static tree handle_nothrow_attribute (tree *, tree, tree, int, bool *);
static tree handle_sentinel_attribute (tree *, tree, tree, int, bool *);
static tree handle_type_generic_attribute (tree *, tree, tree, int, bool *);
+static tree handle_transaction_pure_attribute (tree *, tree, tree, int, bool *);
static tree handle_format_attribute (tree *, tree, tree, int, bool *);
static tree handle_format_arg_attribute (tree *, tree, tree, int, bool *);
handle_sentinel_attribute, false },
{ "type generic", 0, 0, false, true, true,
handle_type_generic_attribute, false },
+ { "transaction_pure", 0, 0, false, true, true,
+ handle_transaction_pure_attribute, false },
{ NULL, 0, 0, false, false, false, NULL, false }
};
return NULL_TREE;
}
+/* Handle a "transaction_pure" attribute. */
+
+static tree
+handle_transaction_pure_attribute (tree *node, tree ARG_UNUSED (name),
+ tree ARG_UNUSED (args),
+ int ARG_UNUSED (flags),
+ bool * ARG_UNUSED (no_add_attrs))
+{
+ /* Ensure we have a function type. */
+ gcc_assert (TREE_CODE (*node) == FUNCTION_TYPE);
+
+ return NULL_TREE;
+}
+
/* Handle a "format" attribute; arguments as in
struct attribute_spec.handler. */
#endif
if (!opts->x_flag_fat_lto_objects && !HAVE_LTO_PLUGIN)
error_at (loc, "-fno-fat-lto-objects are supported only with linker plugin.");
- if (opts->x_flag_tm)
- error_at (loc, "LTO is currently not supported with transactional memory");
}
if ((opts->x_flag_lto_partition_balanced != 0) + (opts->x_flag_lto_partition_1to1 != 0)
+ (opts->x_flag_lto_partition_none != 0) >= 1)
--- /dev/null
+/* { dg-lto-options {{-flto -fgnu-tm}} } */
+
+int i;
+
+main()
+{
+ __transaction_atomic
+ {
+ i = 0;
+ }
+}
--- /dev/null
+#define dummy(func) \
+ __attribute__((noinline,noclone,used)) void func() { asm (""); }
+
+dummy(_ITM_beginTransaction)
+dummy(_ITM_commitTransaction)
+dummy(_ITM_WU4)
+dummy(_ITM_WU8)
--- /dev/null
+/* { dg-lto-options {{-flto -fgnu-tm}} } */
+
+extern void foobar() __attribute__((transaction_callable));
+
+#define dummy(func) \
+ __attribute__((noinline,noclone,used)) void func() { asm (""); }
+
+dummy(_ITM_beginTransaction)
+dummy(_ITM_commitTransaction)
+dummy(_ITM_WU4)
+dummy(_ITM_WU8)
+
+main()
+{
+ __transaction_relaxed
+ {
+ foobar();
+ }
+}
--- /dev/null
+__attribute__((transaction_callable,noinline))
+void foobar()
+{
+}