Mercurial > jdk8-mips64-public > hotspot / annotate
src/cpu/x86/vm/c2_init_x86.cpp@f3de1255b035 (annotated)
src/cpu/x86/vm/c2_init_x86.cpp
Wed, 07 May 2008 08:06:46 -0700
- author
- rasbold
- date
- Wed, 07 May 2008 08:06:46 -0700
- changeset 580
- f3de1255b035
- parent 435
- a61af66fc99e
- child 1907
- c18cbe5936b8
- permissions
- -rw-r--r--
6603011: RFE: Optimize long division
Summary: Transform long division by constant into multiply
Reviewed-by: never, kvn
| duke@435 | 1 | /* |
| duke@435 | 2 | * Copyright 2000-2005 Sun Microsystems, Inc. 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 | * |
| duke@435 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| duke@435 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| duke@435 | 21 | * have any questions. |
| duke@435 | 22 | * |
| duke@435 | 23 | */ |
| duke@435 | 24 | |
| duke@435 | 25 | # include "incls/_precompiled.incl" |
| duke@435 | 26 | # include "incls/_c2_init_x86.cpp.incl" |
| duke@435 | 27 | |
| duke@435 | 28 | // processor dependent initialization for i486 |
| duke@435 | 29 | |
| duke@435 | 30 | void Compile::pd_compiler2_init() { |
| duke@435 | 31 | guarantee(CodeEntryAlignment >= InteriorEntryAlignment, "" ); |
| duke@435 | 32 | // QQQ presumably all 64bit cpu's support this. Seems like the ifdef could |
| duke@435 | 33 | // simply be left out. |
| duke@435 | 34 | #ifndef AMD64 |
| duke@435 | 35 | if (!VM_Version::supports_cmov()) { |
| duke@435 | 36 | ConditionalMoveLimit = 0; |
| duke@435 | 37 | } |
| duke@435 | 38 | #endif // AMD64 |
| duke@435 | 39 | } |
