1 /* 2 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.hotspot.sparc; 24 25 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 26 import static jdk.vm.ci.code.ValueUtil.asRegister; 27 import static jdk.vm.ci.sparc.SPARC.i0; 28 import static jdk.vm.ci.sparc.SPARC.i1; 29 import static jdk.vm.ci.sparc.SPARC.i2; 30 import static jdk.vm.ci.sparc.SPARC.i3; 31 import static jdk.vm.ci.sparc.SPARC.i4; 32 import static jdk.vm.ci.sparc.SPARC.i7; 33 import static jdk.vm.ci.sparc.SPARC.o0; 34 import static jdk.vm.ci.sparc.SPARC.o1; 35 import static jdk.vm.ci.sparc.SPARC.o2; 36 import static jdk.vm.ci.sparc.SPARC.o3; 37 import static jdk.vm.ci.sparc.SPARC.o4; 38 import static jdk.vm.ci.sparc.SPARC.o5; 39 import static jdk.vm.ci.sparc.SPARC.sp; 40 41 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 42 import org.graalvm.compiler.lir.LIRInstructionClass; 43 import org.graalvm.compiler.lir.Opcode; 44 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 45 import org.graalvm.compiler.lir.sparc.SPARCLIRInstruction; 46 47 import jdk.vm.ci.code.Register; 48 import jdk.vm.ci.meta.AllocatableValue; 49 50 /** 51 * Pushes an interpreter frame to the stack. 52 */ 53 @Opcode("PUSH_INTERPRETER_FRAME") 54 final class SPARCHotSpotPushInterpreterFrameOp extends SPARCLIRInstruction { 55 public static final LIRInstructionClass<SPARCHotSpotPushInterpreterFrameOp> TYPE = LIRInstructionClass.create(SPARCHotSpotPushInterpreterFrameOp.class); 56 57 @Alive(REG) AllocatableValue frameSize; 58 @Alive(REG) AllocatableValue framePc; 59 @Alive(REG) AllocatableValue senderSp; 60 @Alive(REG) AllocatableValue initialInfo; 61 62 SPARCHotSpotPushInterpreterFrameOp(AllocatableValue frameSize, AllocatableValue framePc, AllocatableValue senderSp, AllocatableValue initialInfo) { 63 super(TYPE); 64 this.frameSize = frameSize; 65 this.framePc = framePc; 66 this.senderSp = senderSp; 67 this.initialInfo = initialInfo; 68 } 69 70 @Override 71 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 72 final Register frameSizeRegister = asRegister(frameSize); 73 final Register framePcRegister = asRegister(framePc); 74 final Register senderSpRegister = asRegister(senderSp); 75 76 // Save sender SP to O5_savedSP. 77 masm.mov(senderSpRegister, o5); 78 79 masm.neg(frameSizeRegister); 80 masm.save(sp, frameSizeRegister, sp); 81 82 masm.mov(i0, o0); 83 masm.mov(i1, o1); 84 masm.mov(i2, o2); 85 masm.mov(i3, o3); 86 masm.mov(i4, o4); 87 88 // NOTE: Don't touch I5 as it contains valuable saved SP! 89 90 // Move frame's new PC into i7 91 masm.mov(framePcRegister, i7); 92 } 93 94 @Override 95 public boolean leavesRegisterWindow() { 96 return true; 97 } 98 }