1 /* 2 * Copyright (c) 2013, 2018, 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 24 25 package org.graalvm.compiler.hotspot.sparc; 26 27 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 28 import static jdk.vm.ci.code.ValueUtil.asRegister; 29 import static jdk.vm.ci.sparc.SPARC.i0; 30 import static jdk.vm.ci.sparc.SPARC.i1; 31 import static jdk.vm.ci.sparc.SPARC.i2; 32 import static jdk.vm.ci.sparc.SPARC.i3; 33 import static jdk.vm.ci.sparc.SPARC.i4; 34 import static jdk.vm.ci.sparc.SPARC.i7; 35 import static jdk.vm.ci.sparc.SPARC.o0; 36 import static jdk.vm.ci.sparc.SPARC.o1; 37 import static jdk.vm.ci.sparc.SPARC.o2; 38 import static jdk.vm.ci.sparc.SPARC.o3; 39 import static jdk.vm.ci.sparc.SPARC.o4; 40 import static jdk.vm.ci.sparc.SPARC.o5; 41 import static jdk.vm.ci.sparc.SPARC.sp; 42 43 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 44 import org.graalvm.compiler.lir.LIRInstructionClass; 45 import org.graalvm.compiler.lir.Opcode; 46 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 47 import org.graalvm.compiler.lir.sparc.SPARCLIRInstruction; 48 49 import jdk.vm.ci.code.Register; 50 import jdk.vm.ci.meta.AllocatableValue; 51 52 /** 53 * Pushes an interpreter frame to the stack. 54 */ 55 @Opcode("PUSH_INTERPRETER_FRAME") 56 final class SPARCHotSpotPushInterpreterFrameOp extends SPARCLIRInstruction { 57 public static final LIRInstructionClass<SPARCHotSpotPushInterpreterFrameOp> TYPE = LIRInstructionClass.create(SPARCHotSpotPushInterpreterFrameOp.class); 58 59 @Alive(REG) AllocatableValue frameSize; 60 @Alive(REG) AllocatableValue framePc; 61 @Alive(REG) AllocatableValue senderSp; 62 @Alive(REG) AllocatableValue initialInfo; 63 64 SPARCHotSpotPushInterpreterFrameOp(AllocatableValue frameSize, AllocatableValue framePc, AllocatableValue senderSp, AllocatableValue initialInfo) { 65 super(TYPE); 66 this.frameSize = frameSize; 67 this.framePc = framePc; 68 this.senderSp = senderSp; 69 this.initialInfo = initialInfo; 70 } 71 72 @Override 73 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 74 final Register frameSizeRegister = asRegister(frameSize); 75 final Register framePcRegister = asRegister(framePc); 76 final Register senderSpRegister = asRegister(senderSp); 77 78 // Save sender SP to O5_savedSP. 79 masm.mov(senderSpRegister, o5); 80 81 masm.neg(frameSizeRegister); 82 masm.save(sp, frameSizeRegister, sp); 83 84 masm.mov(i0, o0); 85 masm.mov(i1, o1); 86 masm.mov(i2, o2); 87 masm.mov(i3, o3); 88 masm.mov(i4, o4); 89 90 // NOTE: Don't touch I5 as it contains valuable saved SP! 91 92 // Move frame's new PC into i7 93 masm.mov(framePcRegister, i7); 94 } 95 96 @Override 97 public boolean leavesRegisterWindow() { 98 return true; 99 } 100 }