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.lir.amd64; 26 27 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.ILLEGAL; 28 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.REG; 29 import static org.graalvm.compiler.lir.LIRInstruction.OperandFlag.STACK; 30 31 import org.graalvm.compiler.asm.amd64.AMD64MacroAssembler; 32 import org.graalvm.compiler.lir.LIRInstructionClass; 33 import org.graalvm.compiler.lir.asm.CompilationResultBuilder; 34 35 import jdk.vm.ci.code.Register; 36 import jdk.vm.ci.code.ValueUtil; 37 import jdk.vm.ci.meta.Value; 38 39 public final class AMD64CCall extends AMD64LIRInstruction { 40 public static final LIRInstructionClass<AMD64CCall> TYPE = LIRInstructionClass.create(AMD64CCall.class); 41 42 @Def({REG, ILLEGAL}) protected Value result; 43 @Use({REG, STACK}) protected Value[] parameters; 44 @Use({REG}) protected Value functionPtr; 45 @Use({REG}) protected Value numberOfFloatingPointArguments; 46 AMD64CCall(Value result, Value functionPtr, Value numberOfFloatingPointArguments, Value[] parameters)47 public AMD64CCall(Value result, Value functionPtr, Value numberOfFloatingPointArguments, Value[] parameters) { 48 super(TYPE); 49 this.result = result; 50 this.functionPtr = functionPtr; 51 this.parameters = parameters; 52 this.numberOfFloatingPointArguments = numberOfFloatingPointArguments; 53 } 54 55 @Override emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm)56 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { 57 directCall(masm); 58 } 59 directCall(AMD64MacroAssembler masm)60 private void directCall(AMD64MacroAssembler masm) { 61 Register reg = ValueUtil.asRegister(functionPtr); 62 masm.call(reg); 63 masm.ensureUniquePC(); 64 } 65 66 @Override destroysCallerSavedRegisters()67 public boolean destroysCallerSavedRegisters() { 68 return true; 69 } 70 71 } 72