| /* |
| * 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 jdk.vm.ci.code.ValueUtil.asRegister; |
| import static jdk.vm.ci.sparc.SPARC.i0; |
| import static jdk.vm.ci.sparc.SPARC.i1; |
| import static jdk.vm.ci.sparc.SPARC.i2; |
| import static jdk.vm.ci.sparc.SPARC.i3; |
| import static jdk.vm.ci.sparc.SPARC.i4; |
| import static jdk.vm.ci.sparc.SPARC.i7; |
| import static jdk.vm.ci.sparc.SPARC.o0; |
| import static jdk.vm.ci.sparc.SPARC.o1; |
| import static jdk.vm.ci.sparc.SPARC.o2; |
| import static jdk.vm.ci.sparc.SPARC.o3; |
| import static jdk.vm.ci.sparc.SPARC.o4; |
| import static jdk.vm.ci.sparc.SPARC.o5; |
| import static jdk.vm.ci.sparc.SPARC.sp; |
| |
| import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; |
| 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 jdk.vm.ci.code.Register; |
| import jdk.vm.ci.meta.AllocatableValue; |
| |
| /** |
| * Pushes an interpreter frame to the stack. |
| */ |
| @Opcode("PUSH_INTERPRETER_FRAME") |
| final class SPARCHotSpotPushInterpreterFrameOp extends SPARCLIRInstruction { |
| public static final LIRInstructionClass<SPARCHotSpotPushInterpreterFrameOp> TYPE = LIRInstructionClass.create(SPARCHotSpotPushInterpreterFrameOp.class); |
| |
| @Alive(REG) AllocatableValue frameSize; |
| @Alive(REG) AllocatableValue framePc; |
| @Alive(REG) AllocatableValue senderSp; |
| @Alive(REG) AllocatableValue initialInfo; |
| |
| SPARCHotSpotPushInterpreterFrameOp(AllocatableValue frameSize, AllocatableValue framePc, AllocatableValue senderSp, AllocatableValue initialInfo) { |
| super(TYPE); |
| this.frameSize = frameSize; |
| this.framePc = framePc; |
| this.senderSp = senderSp; |
| this.initialInfo = initialInfo; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { |
| final Register frameSizeRegister = asRegister(frameSize); |
| final Register framePcRegister = asRegister(framePc); |
| final Register senderSpRegister = asRegister(senderSp); |
| |
| // Save sender SP to O5_savedSP. |
| masm.mov(senderSpRegister, o5); |
| |
| masm.neg(frameSizeRegister); |
| masm.save(sp, frameSizeRegister, sp); |
| |
| masm.mov(i0, o0); |
| masm.mov(i1, o1); |
| masm.mov(i2, o2); |
| masm.mov(i3, o3); |
| masm.mov(i4, o4); |
| |
| // NOTE: Don't touch I5 as it contains valuable saved SP! |
| |
| // Move frame's new PC into i7 |
| masm.mov(framePcRegister, i7); |
| } |
| |
| @Override |
| public boolean leavesRegisterWindow() { |
| return true; |
| } |
| } |