Mercurial > hg > graal-jvmci-8
view src/share/vm/prims/jniFastGetField.cpp @ 10345:b7fa10a3a69a
8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
Summary: The fix of perf regression is to use method_idnum() for direct indexing into NMT
Reviewed-by: twisti, kvn, coleenp, dholmes
Contributed-by: serguei.spitsyn@oracle.com
author | sspitsyn |
---|---|
date | Thu, 23 May 2013 23:04:33 -0700 |
parents | f95d63e2154a |
children |
line wrap: on
line source
/* * Copyright (c) 2004, 2010, 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. * */ #include "precompiled.hpp" #include "prims/jniFastGetField.hpp" address JNI_FastGetField::speculative_load_pclist [LIST_CAPACITY]; address JNI_FastGetField::slowcase_entry_pclist [LIST_CAPACITY]; int JNI_FastGetField::count = 0; address JNI_FastGetField::find_slowcase_pc(address pc) { for (int i=0; i<count; i++) { if (speculative_load_pclist[i] == pc) { return slowcase_entry_pclist[i]; } } return (address)-1; }