1 /* 2 * Copyright (c) 2013, 2016, 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.core.common.spi; 24 25 import org.graalvm.compiler.core.common.LIRKind; 26 import org.graalvm.compiler.core.common.LocationIdentity; 27 28 import jdk.vm.ci.code.ValueKindFactory; 29 30 /** 31 * Details about a set of supported {@link ForeignCallDescriptor foreign calls}. 32 */ 33 public interface ForeignCallsProvider extends ValueKindFactory<LIRKind> { 34 35 /** 36 * Determines if a given foreign call is side-effect free. Deoptimization cannot return 37 * execution to a point before a foreign call that has a side effect. 38 */ 39 boolean isReexecutable(ForeignCallDescriptor descriptor); 40 41 /** 42 * Gets the set of memory locations killed by a given foreign call. Returning the special value 43 * {@link LocationIdentity#any()} denotes that the call kills all memory locations. Returning 44 * any empty array denotes that the call does not kill any memory locations. 45 */ 46 LocationIdentity[] getKilledLocations(ForeignCallDescriptor descriptor); 47 48 /** 49 * Determines if deoptimization can occur during a given foreign call. 50 */ 51 boolean canDeoptimize(ForeignCallDescriptor descriptor); 52 53 /** 54 * Identifies foreign calls which are guaranteed to include a safepoint check. 55 */ 56 boolean isGuaranteedSafepoint(ForeignCallDescriptor descriptor); 57 58 /** 59 * Gets the linkage for a foreign call. 60 */ 61 ForeignCallLinkage lookupForeignCall(ForeignCallDescriptor descriptor); 62 }