Mon, 26 Sep 2011 10:24:05 -0700
7081933: Use zeroing elimination optimization for large array
Summary: Don't zero new typeArray during runtime call if the allocation is followed by arraycopy into it.
Reviewed-by: twisti
duke@435 | 1 | /* |
stefank@2314 | 2 | * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "register_sparc.hpp" |
duke@435 | 27 | |
duke@435 | 28 | const int ConcreteRegisterImpl::max_gpr = RegisterImpl::number_of_registers << 1; |
duke@435 | 29 | const int ConcreteRegisterImpl::max_fpr = ConcreteRegisterImpl::max_gpr + FloatRegisterImpl::number_of_registers; |
duke@435 | 30 | |
duke@435 | 31 | const char* RegisterImpl::name() const { |
duke@435 | 32 | const char* names[number_of_registers] = { |
duke@435 | 33 | "G0", "G1", "G2", "G3", "G4", "G5", "G6", "G7", |
duke@435 | 34 | "O0", "O1", "O2", "O3", "O4", "O5", "SP", "O7", |
duke@435 | 35 | "L0", "L1", "L2", "L3", "L4", "L5", "L6", "L7", |
duke@435 | 36 | "I0", "I1", "I2", "I3", "I4", "I5", "FP", "I7" |
duke@435 | 37 | }; |
duke@435 | 38 | return is_valid() ? names[encoding()] : "noreg"; |
duke@435 | 39 | } |
duke@435 | 40 | |
duke@435 | 41 | |
duke@435 | 42 | const char* FloatRegisterImpl::name() const { |
duke@435 | 43 | const char* names[number_of_registers] = { |
duke@435 | 44 | "F0", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", |
duke@435 | 45 | "F10", "F11", "F12", "F13", "F14", "F15", "F16", "F17", "F18", "F19", |
duke@435 | 46 | "F20", "F21", "F22", "F23", "F24", "F25", "F26", "F27", "F28", "F29", |
duke@435 | 47 | "F30", "F31", "F32", "F33?", "F34", "F35?", "F36", "F37?", "F38", "F39?", |
duke@435 | 48 | "F40", "F41?", "F42", "F43?", "F44", "F45?", "F46", "F47?", "F48", "F49?", |
duke@435 | 49 | "F50", "F51?", "F52", "F53?", "F54", "F55?", "F56", "F57?", "F58", "F59?", |
duke@435 | 50 | "F60", "F61?", "F62" |
duke@435 | 51 | }; |
duke@435 | 52 | return is_valid() ? names[encoding()] : "fnoreg"; |
duke@435 | 53 | } |