1 /* 2 * Copyright (c) 2012, 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 24 25 package org.graalvm.compiler.hotspot.sparc; 26 27 import static org.graalvm.compiler.hotspot.HotSpotHostBackend.UNCOMMON_TRAP_HANDLER; 28 29 import org.graalvm.compiler.asm.sparc.SPARCMacroAssembler; 30 import org.graalvm.compiler.core.common.LIRKind; 31 import org.graalvm.compiler.lir.LIRFrameState; 32 import org.graalvm.compiler.lir.LIRInstructionClass; 33 import org.graalvm.compiler.lir.Opcode; 34 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 35 import org.graalvm.compiler.lir.sparc.SPARCBlockEndOp; 36 import org.graalvm.compiler.lir.sparc.SPARCCall; 37 38 import jdk.vm.ci.meta.AllocatableValue; 39 import jdk.vm.ci.meta.PlatformKind; 40 import jdk.vm.ci.sparc.SPARC; 41 42 @Opcode("DEOPT") 43 final class SPARCDeoptimizeOp extends SPARCBlockEndOp { 44 public static final LIRInstructionClass<SPARCDeoptimizeOp> TYPE = LIRInstructionClass.create(SPARCDeoptimizeOp.class); 45 public static final SizeEstimate SIZE = SizeEstimate.create(1); 46 @Temp AllocatableValue pcRegister; 47 @State private LIRFrameState info; 48 SPARCDeoptimizeOp(LIRFrameState info, PlatformKind wordKind)49 SPARCDeoptimizeOp(LIRFrameState info, PlatformKind wordKind) { 50 super(TYPE, SIZE); 51 this.info = info; 52 pcRegister = SPARC.o7.asValue(LIRKind.value(wordKind)); 53 } 54 55 @Override emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm)56 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) { 57 // TODO the patched call address looks odd (and is invalid) compared to other runtime calls: 58 // 0xffffffff749bb5fc: call 0xffffffff415a720c ; {runtime_call} 59 // [Exception Handler] 60 // 0xffffffff749bb604: call 0xffffffff749bb220 ; {runtime_call} 61 // 0xffffffff749bb608: nop 62 // [Deopt Handler Code] 63 // 0xffffffff749bb60c: call 0xffffffff748da540 ; {runtime_call} 64 // 0xffffffff749bb610: nop 65 SPARCCall.directCall(crb, masm, crb.foreignCalls.lookupForeignCall(UNCOMMON_TRAP_HANDLER), null, info); 66 } 67 } 68