1 /* 2 * Copyright (c) 2015, 2015, 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.trace.lsra; 24 25 import org.graalvm.compiler.core.common.alloc.Trace; 26 import org.graalvm.compiler.debug.Debug; 27 import org.graalvm.compiler.debug.Indent; 28 import org.graalvm.compiler.lir.alloc.trace.lsra.TraceLinearScanPhase.TraceLinearScan; 29 import org.graalvm.compiler.lir.gen.LIRGenerationResult; 30 31 import jdk.vm.ci.code.TargetDescription; 32 33 final class TraceLinearScanRegisterAllocationPhase extends TraceLinearScanAllocationPhase { 34 35 @Override 36 protected void run(TargetDescription target, LIRGenerationResult lirGenRes, Trace trace, TraceLinearScanAllocationContext context) { 37 TraceLinearScan allocator = context.allocator; 38 allocateRegisters(allocator); 39 } 40 41 @SuppressWarnings("try") 42 private static void allocateRegisters(TraceLinearScan allocator) { 43 try (Indent indent = Debug.logAndIndent("allocate registers")) { 44 FixedInterval precoloredIntervals = allocator.createFixedUnhandledList(); 45 TraceInterval notPrecoloredIntervals = allocator.createUnhandledListByFrom(TraceLinearScanPhase.IS_VARIABLE_INTERVAL); 46 47 // allocate cpu registers 48 TraceLinearScanWalker lsw = new TraceLinearScanWalker(allocator, precoloredIntervals, notPrecoloredIntervals); 49 lsw.walk(); 50 lsw.finishAllocation(); 51 } 52 } 53 54 }