1 /* 2 * Copyright (c) 2014, 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 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.o0; 33 import static jdk.vm.ci.sparc.SPARC.o1; 34 import static jdk.vm.ci.sparc.SPARC.o2; 35 import static jdk.vm.ci.sparc.SPARC.o3; 36 import static jdk.vm.ci.sparc.SPARC.o4; 37 38 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 39 import org.graalvm.compiler.lir.LIRInstructionClass; 40 import org.graalvm.compiler.lir.Opcode; 41 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 42 import org.graalvm.compiler.lir.sparc.SPARCLIRInstruction; 43 44 /** 45 * Pops the current frame off the stack. 46 */ 47 @Opcode("LEAVE_CURRENT_STACK_FRAME") 48 final class SPARCHotSpotLeaveCurrentStackFrameOp extends SPARCLIRInstruction { 49 public static final LIRInstructionClass<SPARCHotSpotLeaveCurrentStackFrameOp> TYPE = LIRInstructionClass.create(SPARCHotSpotLeaveCurrentStackFrameOp.class); 50 51 SPARCHotSpotLeaveCurrentStackFrameOp() { 52 super(TYPE); 53 } 54 55 @Override 56 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 57 // Save O registers over restore. 58 masm.mov(o0, i0); 59 masm.mov(o1, i1); 60 masm.mov(o2, i2); 61 masm.mov(o3, i3); 62 masm.mov(o4, i4); 63 64 crb.frameContext.leave(crb); 65 } 66 67 @Override 68 public boolean leavesRegisterWindow() { 69 return true; 70 } 71 }