libitm: Optimize undo log.
libitm/
* local.cc (GTM_LB): Use GTM::gtm_undolog.
(GTM::gtm_thread::drop_references_undolog): Remove.
(GTM::gtm_thread::commit_undolog,
GTM::gtm_thread::rollback_undolog): Move to ...
* libitm_i.h (GTM::gtm_undolog): ...here. New.
(GTM::gtm_undolog_entry): Remove.
(GTM::gtm_thread): Adapt.
* beginend.cc (GTM::gtm_thread::rollback): Adapt.
(GTM::gtm_thread::trycommit): Adapt.
* method-serial.cc (serial_dispatch::log): Adapt.
* method-gl.cc (gl_wt_dispatch::pre_write): Adapt.
(gl_wt_dispatch::store): Fix likely/unlikely.
* containers.h (GTM::vector::resize): Add additional_capacity
parameter and handle it.
(GTM::vector::resize_noinline): New/adapt.
(GTM::vector::push): New.
From-SVN: r182992
diff --git a/libitm/beginend.cc b/libitm/beginend.cc
index 7975481..fe14f32 100644
--- a/libitm/beginend.cc
+++ b/libitm/beginend.cc
@@ -1,4 +1,4 @@
-/* Copyright (C) 2008, 2009, 2011 Free Software Foundation, Inc.
+/* Copyright (C) 2008, 2009, 2011, 2012 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@redhat.com>.
This file is part of the GNU Transactional Memory Library (libitm).
@@ -327,7 +327,7 @@
// data. Because of the latter, we have to roll it back before any
// dispatch-specific rollback (which handles synchronization with other
// transactions).
- rollback_undolog (cp ? cp->undolog_size : 0);
+ undolog.rollback (cp ? cp->undolog_size : 0);
// Perform dispatch-specific rollback.
abi_disp()->rollback (cp);
@@ -470,7 +470,7 @@
// We can commit the undo log after dispatch-specific commit and after
// making the transaction inactive because we only have to reset
// gtm_thread state.
- commit_undolog ();
+ undolog.commit ();
// Reset further transaction state.
cxa_catch_count = 0;
cxa_unthrown = NULL;