| /* |
| * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package org.graalvm.compiler.hotspot.amd64; |
| |
| import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; |
| import static jdk.vm.ci.code.ValueUtil.asRegister; |
| |
| import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; |
| import org.graalvm.compiler.hotspot.GraalHotSpotVMConfig; |
| import org.graalvm.compiler.lir.LIRFrameState; |
| import org.graalvm.compiler.lir.LIRInstructionClass; |
| import org.graalvm.compiler.lir.Opcode; |
| import org.graalvm.compiler.lir.amd64.AMD64Call; |
| import org.graalvm.compiler.lir.amd64.AMD64Call.IndirectCallOp; |
| import org.graalvm.compiler.lir.asm.CompilationResultBuilder; |
| |
| import jdk.vm.ci.amd64.AMD64; |
| import jdk.vm.ci.code.Register; |
| import jdk.vm.ci.meta.ResolvedJavaMethod; |
| import jdk.vm.ci.meta.Value; |
| |
| /** |
| * A register indirect call that complies with the extra conventions for such calls in HotSpot. In |
| * particular, the metaspace Method of the callee must be in RBX for the case where a vtable entry's |
| * _from_compiled_entry is the address of an C2I adapter. Such adapters expect the target method to |
| * be in RBX. |
| */ |
| @Opcode("CALL_INDIRECT") |
| final class AMD64IndirectCallOp extends IndirectCallOp { |
| public static final LIRInstructionClass<AMD64IndirectCallOp> TYPE = LIRInstructionClass.create(AMD64IndirectCallOp.class); |
| |
| /** |
| * Vtable stubs expect the metaspace Method in RBX. |
| */ |
| public static final Register METHOD = AMD64.rbx; |
| |
| @Use({REG}) protected Value metaspaceMethod; |
| |
| private final GraalHotSpotVMConfig config; |
| |
| AMD64IndirectCallOp(ResolvedJavaMethod targetMethod, Value result, Value[] parameters, Value[] temps, Value metaspaceMethod, Value targetAddress, LIRFrameState state, |
| GraalHotSpotVMConfig config) { |
| super(TYPE, targetMethod, result, parameters, temps, targetAddress, state); |
| this.metaspaceMethod = metaspaceMethod; |
| this.config = config; |
| } |
| |
| @Override |
| public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { |
| crb.recordMark(config.MARKID_INLINE_INVOKE); |
| Register callReg = asRegister(targetAddress); |
| assert !callReg.equals(METHOD); |
| AMD64Call.indirectCall(crb, masm, callReg, callTarget, state); |
| } |
| |
| @Override |
| public void verify() { |
| super.verify(); |
| assert asRegister(metaspaceMethod).equals(METHOD); |
| } |
| } |