1 /* 2 * Copyright (c) 2014, 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.lir.stackslotalloc; 24 25 import org.graalvm.compiler.debug.Debug; 26 import org.graalvm.compiler.debug.DebugCounter; 27 import org.graalvm.compiler.lir.VirtualStackSlot; 28 import org.graalvm.compiler.lir.gen.LIRGenerationResult; 29 30 import jdk.vm.ci.code.StackSlot; 31 32 /** 33 * A stack slot allocator is responsible for translating {@link VirtualStackSlot virtual} stack 34 * slots into {@link StackSlot real} stack slots. This includes changing all occurrences of 35 * {@link VirtualStackSlot} in the {@link LIRGenerationResult#getLIR() LIR} to {@link StackSlot}. 36 */ 37 public final class StackSlotAllocatorUtil { 38 /** 39 * The number of allocated stack slots. 40 */ 41 public static DebugCounter allocatedSlots = Debug.counter("StackSlotAllocator[allocatedSlots]"); 42 /** 43 * The number of reused stack slots. 44 */ 45 public static DebugCounter reusedSlots = Debug.counter("StackSlotAllocator[reusedSlots]"); 46 /** 47 * The size (in bytes) required for all allocated stack slots. Note that this number corresponds 48 * to the actual frame size and might include alignment. 49 */ 50 public static DebugCounter allocatedFramesize = Debug.counter("StackSlotAllocator[AllocatedFramesize]"); 51 /** The size (in bytes) required for all virtual stack slots. */ 52 public static DebugCounter virtualFramesize = Debug.counter("StackSlotAllocator[VirtualFramesize]"); 53 }