package org.graalvm.compiler.truffle.compiler.hotspot.aarch64;
import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.JavaCall;
import static jdk.vm.ci.meta.JavaKind.Object;
import org.graalvm.compiler.asm.Assembler;
import org.graalvm.compiler.asm.Label;
import org.graalvm.compiler.asm.aarch64.AArch64Address;
import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler.ScratchRegister;
import org.graalvm.compiler.code.CompilationResult;
import org.graalvm.compiler.core.common.CompressEncoding;
import org.graalvm.compiler.core.common.spi.CodeGenProviders;
import org.graalvm.compiler.debug.DebugContext;
import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
import org.graalvm.compiler.hotspot.aarch64.AArch64HotSpotBackend;
import org.graalvm.compiler.hotspot.aarch64.AArch64HotSpotMove;
import org.graalvm.compiler.hotspot.meta.HotSpotRegistersProvider;
import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
import org.graalvm.compiler.lir.asm.CompilationResultBuilderFactory;
import org.graalvm.compiler.lir.asm.DataBuilder;
import org.graalvm.compiler.lir.asm.FrameContext;
import org.graalvm.compiler.lir.framemap.FrameMap;
import org.graalvm.compiler.options.OptionValues;
import org.graalvm.compiler.serviceprovider.ServiceProvider;
import org.graalvm.compiler.truffle.compiler.hotspot.TruffleCallBoundaryInstrumentation;
import org.graalvm.compiler.truffle.compiler.hotspot.TruffleCallBoundaryInstrumentationFactory;
import jdk.vm.ci.code.Register;
import jdk.vm.ci.meta.MetaAccessProvider;
@ServiceProvider(TruffleCallBoundaryInstrumentationFactory.class)
public class AArch64TruffleCallBoundaryInstumentationFactory extends TruffleCallBoundaryInstrumentationFactory {
@Override
public CompilationResultBuilderFactory create(MetaAccessProvider metaAccess, GraalHotSpotVMConfig config, HotSpotRegistersProvider registers) {
return new TruffleCompilationResultBuilderFactory(metaAccess, config, registers) {
@Override
public CompilationResultBuilder createBuilder(CodeGenProviders providers, FrameMap frameMap, Assembler asm, DataBuilder dataBuilder,
FrameContext frameContext,
OptionValues options, DebugContext debug, CompilationResult compilationResult, Register nullRegister) {
return new TruffleCallBoundaryInstrumentation(providers, frameMap, asm, dataBuilder, frameContext, options, debug, compilationResult, config, registers) {
@Override
protected void injectTailCallCode(int installedCodeOffset, int entryPointOffset) {
AArch64MacroAssembler masm = (AArch64MacroAssembler) this.asm;
AArch64HotSpotBackend.emitInvalidatePlaceholder(this, masm);
try (ScratchRegister scratch = masm.getScratchRegister()) {
Register thisRegister = codeCache.getRegisterConfig().getCallingConventionRegisters(JavaCall, Object).get(0);
Register spillRegister = scratch.getRegister();
Label doProlog = new Label();
if (config.useCompressedOops) {
CompressEncoding encoding = config.getOopEncoding();
masm.ldr(32, spillRegister, AArch64Address.createImmediateAddress(32, AArch64Address.AddressingMode.IMMEDIATE_UNSIGNED_SCALED, thisRegister, installedCodeOffset));
Register base = encoding.hasBase() ? registers.getHeapBaseRegister() : null;
AArch64HotSpotMove.UncompressPointer.emitUncompressCode(masm, spillRegister, spillRegister, base, encoding.getShift(), true);
} else {
masm.ldr(64, spillRegister, AArch64Address.createImmediateAddress(64, AArch64Address.AddressingMode.IMMEDIATE_UNSIGNED_SCALED, thisRegister, installedCodeOffset));
}
masm.ldr(64, spillRegister, AArch64Address.createImmediateAddress(64, AArch64Address.AddressingMode.IMMEDIATE_UNSIGNED_SCALED, spillRegister, entryPointOffset));
masm.cbz(64, spillRegister, doProlog);
masm.jmp(spillRegister);
masm.nop();
masm.bind(doProlog);
}
}
};
}
};
}
@Override
public String getArchitecture() {
return "aarch64";
}
}