Subzero. Performance tweaks.
Introduces Ice::SmallBitVector.
Modifies ConstantRelocatables so that known offsets (i.e.,
not offsets to the code stream) do no require GlobalContext
allocations.
Modifies Cfg-local containers to use the CfgLocalAllocator.
BUG=
R=stichnot@chromium.org
Review URL: https://codereview.chromium.org/1738443002 .
diff --git a/src/IceMemory.cpp b/src/IceMemory.cpp
new file mode 100644
index 0000000..936a2c8
--- /dev/null
+++ b/src/IceMemory.cpp
@@ -0,0 +1,36 @@
+//===- subzero/src/IceMemory.cpp - Memory management definitions -*- C++ -*-==//
+//
+// The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief Implements memory management related routines for subzero.
+/////
+//===----------------------------------------------------------------------===//
+
+#include "IceMemory.h"
+
+#include "IceCfg.h"
+#include "IceTLS.h"
+
+#include <cassert>
+#include <utility>
+
+namespace Ice {
+ICE_TLS_DEFINE_FIELD(ArenaAllocator *, CfgAllocatorTraits, CfgAllocator);
+
+CfgAllocatorTraits::allocator_type CfgAllocatorTraits::current() {
+ return ICE_TLS_GET_FIELD(CfgAllocator);
+}
+
+void CfgAllocatorTraits::set_current(const manager_type *Manager) {
+ ArenaAllocator *Allocator =
+ Manager == nullptr ? nullptr : Manager->Allocator.get();
+ ICE_TLS_SET_FIELD(CfgAllocator, Allocator);
+}
+
+} // end of namespace Ice
