Use ScopedArenaAllocator for register allocation.
Memory needed to compile the two most expensive methods for
aosp_angler-userdebug boot image:
BatteryStats.dumpCheckinLocked() : 25.1MiB -> 21.1MiB
BatteryStats.dumpLocked(): 49.6MiB -> 42.0MiB
This is because all the memory previously used by Scheduler
is reused by the register allocator; the register allocator
has a higher peak usage of the ArenaStack.
And continue the "arena"->"allocator" renaming.
Test: m test-art-host-gtest
Test: testrunner.py --host
Bug: 64312607
Change-Id: Idfd79a9901552b5147ec0bf591cb38120de86b01
diff --git a/compiler/utils/x86_64/assembler_x86_64.h b/compiler/utils/x86_64/assembler_x86_64.h
index 1130444..0d24a75 100644
--- a/compiler/utils/x86_64/assembler_x86_64.h
+++ b/compiler/utils/x86_64/assembler_x86_64.h
@@ -290,7 +290,8 @@
*/
class ConstantArea {
public:
- explicit ConstantArea(ArenaAllocator* arena) : buffer_(arena->Adapter(kArenaAllocAssembler)) {}
+ explicit ConstantArea(ArenaAllocator* allocator)
+ : buffer_(allocator->Adapter(kArenaAllocAssembler)) {}
// Add a double to the constant area, returning the offset into
// the constant area where the literal resides.
@@ -352,7 +353,8 @@
class X86_64Assembler FINAL : public Assembler {
public:
- explicit X86_64Assembler(ArenaAllocator* arena) : Assembler(arena), constant_area_(arena) {}
+ explicit X86_64Assembler(ArenaAllocator* allocator)
+ : Assembler(allocator), constant_area_(allocator) {}
virtual ~X86_64Assembler() {}
/*