1 /*
   2  * Copyright (c) 2017, 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.alloc.lsra;
  24 
  25 import org.graalvm.compiler.debug.DebugContext;
  26 import org.graalvm.compiler.lir.gen.LIRGenerationResult;
  27 import static org.graalvm.compiler.lir.phases.AllocationPhase.AllocationContext;
  28 import org.graalvm.compiler.lir.phases.LIRPhase;
  29 
  30 import jdk.vm.ci.code.TargetDescription;
  31 
  32 abstract class LinearScanAllocationPhase {
  33 
  34     final CharSequence getName() {
  35         return LIRPhase.createName(getClass());
  36     }
  37 
  38     @Override
  39     public final String toString() {
  40         return getName().toString();
  41     }
  42 
  43     public final void apply(TargetDescription target, LIRGenerationResult lirGenRes, AllocationContext context) {
  44         apply(target, lirGenRes, context, true);
  45     }
  46 
  47     @SuppressWarnings("try")
  48     public final void apply(TargetDescription target, LIRGenerationResult lirGenRes, AllocationContext context, boolean dumpLIR) {
  49         DebugContext debug = lirGenRes.getLIR().getDebug();
  50         try (DebugContext.Scope s = debug.scope(getName(), this)) {
  51             run(target, lirGenRes, context);
  52             if (dumpLIR) {
  53                 if (debug.isDumpEnabled(DebugContext.VERBOSE_LEVEL)) {
  54                     debug.dump(DebugContext.VERBOSE_LEVEL, lirGenRes.getLIR(), "After %s", getName());
  55                 }
  56             }
  57         } catch (Throwable e) {
  58             throw debug.handle(e);
  59         }
  60     }
  61 
  62     protected abstract void run(TargetDescription target, LIRGenerationResult lirGenRes, AllocationContext context);
  63 
  64 }