--- /dev/null 2017-01-22 10:16:57.869617664 -0800 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.hotspot.amd64/src/org/graalvm/compiler/hotspot/amd64/AMD64HotSpotPushInterpreterFrameOp.java 2017-02-15 16:59:06.028910408 -0800 @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2013, 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.amd64; + +import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; +import static jdk.vm.ci.amd64.AMD64.rsp; +import static jdk.vm.ci.code.ValueUtil.asRegister; + +import org.graalvm.compiler.asm.amd64.AMD64Address; +import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; +import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; +import org.graalvm.compiler.lir.LIRInstructionClass; +import org.graalvm.compiler.lir.Opcode; +import org.graalvm.compiler.lir.amd64.AMD64LIRInstruction; +import org.graalvm.compiler.lir.asm.CompilationResultBuilder; + +import jdk.vm.ci.code.Register; +import jdk.vm.ci.meta.AllocatableValue; + +/** + * Pushes an interpreter frame to the stack. + */ +@Opcode("PUSH_INTERPRETER_FRAME") +final class AMD64HotSpotPushInterpreterFrameOp extends AMD64LIRInstruction { + public static final LIRInstructionClass TYPE = LIRInstructionClass.create(AMD64HotSpotPushInterpreterFrameOp.class); + + @Alive(REG) AllocatableValue frameSize; + @Alive(REG) AllocatableValue framePc; + @Alive(REG) AllocatableValue senderSp; + @Alive(REG) AllocatableValue initialInfo; + private final GraalHotSpotVMConfig config; + + AMD64HotSpotPushInterpreterFrameOp(AllocatableValue frameSize, AllocatableValue framePc, AllocatableValue senderSp, AllocatableValue initialInfo, GraalHotSpotVMConfig config) { + super(TYPE); + this.frameSize = frameSize; + this.framePc = framePc; + this.senderSp = senderSp; + this.initialInfo = initialInfo; + this.config = config; + } + + @Override + public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { + final Register frameSizeRegister = asRegister(frameSize); + final Register framePcRegister = asRegister(framePc); + final Register senderSpRegister = asRegister(senderSp); + final Register initialInfoRegister = asRegister(initialInfo); + final int wordSize = 8; + + // We'll push PC and BP by hand. + masm.subq(frameSizeRegister, 2 * wordSize); + + // Push return address. + masm.push(framePcRegister); + + // Prolog + masm.push(initialInfoRegister); + masm.movq(initialInfoRegister, rsp); + masm.subq(rsp, frameSizeRegister); + + // This value is corrected by layout_activation_impl. + masm.movptr(new AMD64Address(initialInfoRegister, config.frameInterpreterFrameLastSpOffset * wordSize), 0); + + // Make the frame walkable. + masm.movq(new AMD64Address(initialInfoRegister, config.frameInterpreterFrameSenderSpOffset * wordSize), senderSpRegister); + } +}