Direct calls to @CriticalNative methods.
Emit direct calls from compiled managed code to the native
code registered with the method, avoiding the JNI stub.
Golem results:
art-opt-cc x86 x86-64 arm arm64
NativeDowncallStaticCritical +12.5% +62.5% +75.9% +41.7%
NativeDowncallStaticCritical6 +55.6% +87.5% +72.1% +35.3%
art-opt x86 x86-64 arm arm64
NativeDowncallStaticCritical +28.6% +85.6% +76.4% +38.4%
NativeDowncallStaticCritical6 +44.6% +44.6% +74.6% +32.2%
Test: Covered by 178-app-image-native-method.
Test: m test-art-host-gtest
Test: testrunner.py --host --debuggable --ndebuggable \
--optimizing --jit --jit-on-first-use
Test: run-gtests.sh
Test: testrunner.py --target --optimizing
Test: testrunner.py --target --debuggable --ndebuggable \
--optimizing --jit --jit-on-first-use -t 178
Test: aosp_cf_x86_phone-userdebug boots.
Test: aosp_cf_x86_phone-userdebug/jitzygote boots.
Bug: 112189621
Change-Id: I8b37da51e8fe0b7bc513bb81b127fe0416068866
diff --git a/compiler/optimizing/sharpening.cc b/compiler/optimizing/sharpening.cc
index 1539421..04a8eab 100644
--- a/compiler/optimizing/sharpening.cc
+++ b/compiler/optimizing/sharpening.cc
@@ -124,6 +124,13 @@
code_ptr_location = HInvokeStaticOrDirect::CodePtrLocation::kCallArtMethod;
}
+ if (method_load_kind != HInvokeStaticOrDirect::MethodLoadKind::kRuntimeCall &&
+ callee->IsCriticalNative()) {
+ DCHECK_NE(method_load_kind, HInvokeStaticOrDirect::MethodLoadKind::kRecursive);
+ DCHECK(callee->IsStatic());
+ code_ptr_location = HInvokeStaticOrDirect::CodePtrLocation::kCallCriticalNative;
+ }
+
if (codegen->GetGraph()->IsDebuggable()) {
// For debuggable apps always use the code pointer from ArtMethod
// so that we don't circumvent instrumentation stubs if installed.