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.core.common.spi; 26 27 import org.graalvm.compiler.core.common.LIRKind; 28 import jdk.internal.vm.compiler.word.LocationIdentity; 29 30 import jdk.vm.ci.code.ValueKindFactory; 31 32 /** 33 * Details about a set of supported {@link ForeignCallDescriptor foreign calls}. 34 */ 35 public interface ForeignCallsProvider extends ValueKindFactory<LIRKind> { 36 37 /** 38 * Determines if a given foreign call is side-effect free. Deoptimization cannot return 39 * execution to a point before a foreign call that has a side effect. 40 */ 41 boolean isReexecutable(ForeignCallDescriptor descriptor); 42 43 /** 44 * Gets the set of memory locations killed by a given foreign call. Returning the special value 45 * {@link LocationIdentity#any()} denotes that the call kills all memory locations. Returning 46 * any empty array denotes that the call does not kill any memory locations. 47 */ 48 LocationIdentity[] getKilledLocations(ForeignCallDescriptor descriptor); 49 50 /** 51 * Determines if deoptimization can occur during a given foreign call. 52 */ 53 boolean canDeoptimize(ForeignCallDescriptor descriptor); 54 55 /** 56 * Identifies foreign calls which are guaranteed to include a safepoint check. 57 */ 58 boolean isGuaranteedSafepoint(ForeignCallDescriptor descriptor); 59 60 /** 61 * Gets the linkage for a foreign call. 62 */ 63 ForeignCallLinkage lookupForeignCall(ForeignCallDescriptor descriptor); 64 }