Use direct class pointers at allocation sites in the compiled code.
- Rather than looking up a class from its type ID (and checking if
it's resolved/initialized, resolving/initializing if not), use
direct class pointers, if possible (boot-code-to-boot-class pointers
and app-code-to-boot-class pointers.)
- This results in a 1-2% speedup in Ritz MemAllocTest on Nexus 4.
- Embedding the object size (along with class pointers) caused a 1-2%
slowdown in MemAllocTest and isn't implemented in this change.
- TODO: do the same for array allocations.
- TODO: when/if an application gets its own image, implement
app-code-to-app-class pointers.
- Fix a -XX:gc bug.
cf. https://android-review.googlesource.com/79460/
- Add /tmp/android-data/dalvik-cache to the list of locations to
remove oat files in clean-oat-host.
cf. https://android-review.googlesource.com/79550
- Add back a dropped UNLIKELY in FindMethodFromCode().
cf. https://android-review.googlesource.com/74205
Bug: 9986565
Change-Id: I590b96bd21f7a7472f88e36752e675547559a5b1
diff --git a/compiler/dex/quick/gen_invoke.cc b/compiler/dex/quick/gen_invoke.cc
index d942a24..f865207 100644
--- a/compiler/dex/quick/gen_invoke.cc
+++ b/compiler/dex/quick/gen_invoke.cc
@@ -142,6 +142,17 @@
CallHelper(r_tgt, helper_offset, safepoint_pc);
}
+void Mir2Lir::CallRuntimeHelperRegMethod(ThreadOffset helper_offset, int arg0, bool safepoint_pc) {
+ int r_tgt = CallHelperSetup(helper_offset);
+ DCHECK_NE(TargetReg(kArg1), arg0);
+ if (TargetReg(kArg0) != arg0) {
+ OpRegCopy(TargetReg(kArg0), arg0);
+ }
+ LoadCurrMethodDirect(TargetReg(kArg1));
+ ClobberCallerSave();
+ CallHelper(r_tgt, helper_offset, safepoint_pc);
+}
+
void Mir2Lir::CallRuntimeHelperRegLocationRegLocation(ThreadOffset helper_offset, RegLocation arg0,
RegLocation arg1, bool safepoint_pc) {
int r_tgt = CallHelperSetup(helper_offset);