Mercurial > hg > graal-compiler
view graal/com.oracle.graal.replacements.amd64/src/com/oracle/graal/replacements/amd64/AMD64IntegerSubstitutions.java @ 18495:fe0db662e982
adds ability for substitution guards to have a constructor with an Architecture argument
added extra flags enum to AMD64 to drive code emission features (currently contains UseCountLeadingZerosInstruction and UseCountTrailingZerosInstruction)
moved lzcnt/tzcnt nodes and substitutions to com.oracle.graal.replacements.amd64
Contributed-by: Igor Veresov <igor.veresov@oracle.com>
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 24 Nov 2014 20:32:24 +0100 |
parents | graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/replacements/IntegerSubstitutions.java@6dc4f0be9a70 |
children |
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/* * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.replacements.amd64; import com.oracle.graal.api.replacements.*; @ClassSubstitution(Integer.class) public class AMD64IntegerSubstitutions { @MethodSubstitution(guard = AMD64Guards.CountLeadingZerosSupported.class) public static int numberOfLeadingZeros(int i) { return AMD64CountLeadingZerosNode.count(i); } @MethodSubstitution(guard = AMD64Guards.CountTrailingZerosSupported.class) public static int numberOfTrailingZeros(int i) { return AMD64CountTrailingZerosNode.count(i); } }