package org.graalvm.compiler.truffle.compiler.hotspot.amd64;
import static jdk.vm.ci.hotspot.HotSpotCallingConventionType.JavaCall;
import org.graalvm.compiler.asm.Assembler;
import org.graalvm.compiler.asm.Label;
import org.graalvm.compiler.asm.amd64.AMD64Address;
import org.graalvm.compiler.asm.amd64.AMD64Assembler.ConditionFlag;
import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler;
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.amd64.AMD64HotSpotBackend;
import org.graalvm.compiler.hotspot.meta.HotSpotRegistersProvider;
import org.graalvm.compiler.lir.amd64.AMD64Move;
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.amd64.AMD64;
import jdk.vm.ci.code.Register;
import jdk.vm.ci.meta.JavaKind;
import jdk.vm.ci.meta.MetaAccessProvider;
@ServiceProvider(TruffleCallBoundaryInstrumentationFactory.class)
public class AMD64TruffleCallBoundaryInstrumentationFactory 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) {
AMD64MacroAssembler masm = (AMD64MacroAssembler) this.asm;
Register thisRegister = codeCache.getRegisterConfig().getCallingConventionRegisters(JavaCall, JavaKind.Object).get(0);
Register spillRegister = AMD64.r10;
Label doProlog = new Label();
int pos = masm.position();
if (config.useCompressedOops) {
masm.movl(spillRegister, new AMD64Address(thisRegister, installedCodeOffset), true);
assert masm.position() - pos >= AMD64HotSpotBackend.PATCHED_VERIFIED_ENTRY_POINT_INSTRUCTION_SIZE;
CompressEncoding encoding = config.getOopEncoding();
Register heapBaseRegister = AMD64Move.UncompressPointerOp.hasBase(options, encoding) ? registers.getHeapBaseRegister() : Register.None;
AMD64Move.UncompressPointerOp.emitUncompressCode(masm, spillRegister, encoding.getShift(), heapBaseRegister, true);
} else {
masm.movq(spillRegister, new AMD64Address(thisRegister, installedCodeOffset), true);
assert masm.position() - pos >= AMD64HotSpotBackend.PATCHED_VERIFIED_ENTRY_POINT_INSTRUCTION_SIZE;
}
masm.movq(spillRegister, new AMD64Address(spillRegister, entryPointOffset));
masm.testqAndJcc(spillRegister, spillRegister, ConditionFlag.Equal, doProlog, true);
masm.jmp(spillRegister);
masm.bind(doProlog);
}
};
}
};
}
@Override
public String getArchitecture() {
return "AMD64";
}
}