--- /dev/null 2016-05-31 09:42:47.975716356 -0700 +++ new/src/jdk.vm.compiler/share/classes/org.graalvm.compiler.hotspot.sparc/src/org/graalvm/compiler/hotspot/sparc/SPARCHotSpotCRuntimeCallPrologueOp.java 2016-12-07 13:49:44.145090381 -0800 @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package org.graalvm.compiler.hotspot.sparc; + +import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; +import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; +import static jdk.vm.ci.code.ValueUtil.asRegister; +import static jdk.vm.ci.sparc.SPARC.STACK_BIAS; +import static jdk.vm.ci.sparc.SPARCKind.XWORD; + +import org.graalvm.compiler.asm.sparc.SPARCAddress; +import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; +import org.graalvm.compiler.core.common.LIRKind; +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.SPARCLIRInstruction; +import org.graalvm.compiler.lir.sparc.SPARCMove; +import org.graalvm.compiler.lir.sparc.SPARCTailDelayedLIRInstruction; + +import jdk.vm.ci.code.Register; +import jdk.vm.ci.meta.AllocatableValue; +import jdk.vm.ci.meta.Value; + +@Opcode("CRUNTIME_CALL_PROLOGUE") +final class SPARCHotSpotCRuntimeCallPrologueOp extends SPARCLIRInstruction implements SPARCTailDelayedLIRInstruction { + public static final LIRInstructionClass TYPE = LIRInstructionClass.create(SPARCHotSpotCRuntimeCallPrologueOp.class); + public static final SizeEstimate SIZE = SizeEstimate.create(10); + + private final int threadLastJavaSpOffset; + private final Register thread; + private final Register stackPointer; + @Def({REG, STACK}) protected Value threadTemp; + @Temp({REG}) protected AllocatableValue spScratch; + + SPARCHotSpotCRuntimeCallPrologueOp(int threadLastJavaSpOffset, Register thread, Register stackPointer, Value threadTemp, AllocatableValue spScratch) { + super(TYPE, SIZE); + this.threadLastJavaSpOffset = threadLastJavaSpOffset; + this.thread = thread; + this.stackPointer = stackPointer; + this.threadTemp = threadTemp; + this.spScratch = spScratch; + } + + @Override + public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { + // Save last Java frame. + Register scratchRegister = asRegister(spScratch); + masm.add(stackPointer, STACK_BIAS, scratchRegister); + masm.stx(scratchRegister, new SPARCAddress(thread, threadLastJavaSpOffset)); + + // Save the thread register when calling out to the runtime. + SPARCMove.move(crb, masm, threadTemp, thread.asValue(LIRKind.value(XWORD)), getDelayedControlTransfer()); + } +}