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package org.graalvm.compiler.hotspot.sparc;

import static jdk.vm.ci.code.ValueUtil.asRegister;
import static org.graalvm.compiler.hotspot.HotSpotHostBackend.DEOPT_BLOB_UNPACK_WITH_EXCEPTION_IN_TLS;

import org.graalvm.compiler.asm.sparc.SPARCAddress;
import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler;
import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig;
import org.graalvm.compiler.lir.LIRInstructionClass;
import org.graalvm.compiler.lir.Opcode;
import org.graalvm.compiler.lir.asm.CompilationResultBuilder;
import org.graalvm.compiler.lir.sparc.SPARCCall;

import jdk.vm.ci.code.Register;
import jdk.vm.ci.meta.Value;
import jdk.vm.ci.sparc.SPARC;

Removes the current frame and tail calls the uncommon trap routine.
/** * Removes the current frame and tail calls the uncommon trap routine. */
@Opcode("DEOPT_WITH_EXCEPTION_IN_CALLER") final class SPARCHotSpotDeoptimizeWithExceptionCallerOp extends SPARCHotSpotEpilogueOp { public static final LIRInstructionClass<SPARCHotSpotDeoptimizeWithExceptionCallerOp> TYPE = LIRInstructionClass.create(SPARCHotSpotDeoptimizeWithExceptionCallerOp.class); public static final SizeEstimate SIZE = SizeEstimate.create(32); private final GraalHotSpotVMConfig config; private final Register thread; @Use(OperandFlag.REG) private Value exception; protected SPARCHotSpotDeoptimizeWithExceptionCallerOp(GraalHotSpotVMConfig config, Value exception, Register thread) { super(TYPE, SIZE); this.config = config; this.exception = exception; this.thread = thread; } @Override public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { Register exc = asRegister(exception); // Save exception oop in TLS masm.stx(exc, new SPARCAddress(thread, config.threadExceptionOopOffset)); // Store original return address in TLS masm.stx(SPARC.i7, new SPARCAddress(thread, config.threadExceptionPcOffset)); leaveFrame(crb); try (SPARCMacroAssembler.ScratchRegister sc = masm.getScratchRegister()) { Register scratch = sc.getRegister(); SPARCCall.indirectJmp(crb, masm, scratch, crb.foreignCalls.lookupForeignCall(DEOPT_BLOB_UNPACK_WITH_EXCEPTION_IN_TLS)); } } }