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.aarch64; 24 25 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 26 import static jdk.vm.ci.aarch64.AArch64.r12; 27 import static jdk.vm.ci.code.ValueUtil.asRegister; 28 29 import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler; 30 import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; 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.aarch64.AArch64Call; 35 import org.graalvm.compiler.lir.aarch64.AArch64Call.IndirectCallOp; 36 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 37 38 import jdk.vm.ci.code.Register; 39 import jdk.vm.ci.meta.ResolvedJavaMethod; 40 import jdk.vm.ci.meta.Value; 41 42 /** 43 * A register indirect call that complies with the extra conventions for such calls in HotSpot. In 44 * particular, the metaspace Method of the callee must be in r12 for the case where a vtable entry's 45 * _from_compiled_entry is the address of an C2I adapter. Such adapters expect the target method to 46 * be in r12. 47 */ 48 @Opcode("CALL_INDIRECT") 49 final class AArch64IndirectCallOp extends IndirectCallOp { 50 51 public static final LIRInstructionClass<AArch64IndirectCallOp> TYPE = LIRInstructionClass.create(AArch64IndirectCallOp.class); 52 53 /** 54 * Vtable stubs expect the metaspace Method in r12. 55 */ 56 public static final Register METHOD = r12; 57 58 @Use({REG}) private Value metaspaceMethod; 59 60 private final GraalHotSpotVMConfig config; 61 62 AArch64IndirectCallOp(ResolvedJavaMethod callTarget, Value result, Value[] parameters, Value[] temps, Value metaspaceMethod, Value targetAddress, LIRFrameState state, 63 GraalHotSpotVMConfig config) { 64 super(TYPE, callTarget, result, parameters, temps, targetAddress, state); 65 this.metaspaceMethod = metaspaceMethod; 66 this.config = config; 67 } 68 69 @Override 70 public void emitCode(CompilationResultBuilder crb, AArch64MacroAssembler masm) { 71 crb.recordMark(config.MARKID_INLINE_INVOKE); 72 Register callReg = asRegister(targetAddress); 73 assert !callReg.equals(METHOD); 74 AArch64Call.indirectCall(crb, masm, callReg, callTarget, state); 75 } 76 77 @Override 78 public void verify() { 79 super.verify(); 80 assert asRegister(metaspaceMethod).equals(METHOD); 81 } 82 }