- 论坛徽章:
- 0
|
原帖由 emmoblin 于 2009-3-3 00:14 发表 ![]()
如期说改进gcc还不如就用集群编译来的更容易。提高可以更大。
对于一般用户，就算编译慢点也是无所谓的
有一个叫 distcc 的东西，但是对代码质量一点提高都没有
改进 GCC 不仅仅是提高编译速度，看现在的开发分支吧
Active Development Branches
General Infrastructure
var-tracking-assignments-branch
This branch aims at improving debug information by annotating assignments early in the compilation, and carrying over such annotations throughout optimization passes and representations. This branch is maintained by Alexandre Oliva. This branch is now tracking GCC 4.4; a separate 4.3 branch was maintained for some time, but there are no plans to maintain it any further.
struct-reorg-branch
This branch is for the development of structure reorganization optimizations, including field reordering, structure splitting for trees. These optimizations are profile information driven. This is a subbranch of tree-profiling. This branch is being maintained by Caroline Tice, Dale Johannesen, Kenneth Zadeck, Stuart Hastings, Mostafa Hagog.
autovect-branch
This branch is the successor to the lno-branch. The purpose of this branch is tree-level autovectorization work, and related work that the autovectorizer could use or benefit from (like data-dependence analysis, loop nest optimizations).
graphite-branch
The purpose of this branch is to develop an infrastructure for loop transforms using the polyhedral model.
lto
This branch aims to implement link-time optimization. Patches and discussion on this branch should be marked with the tag [lto] in the subject line.
boehms-gc
The goal of this branch is to test Boehm's GC feasibility as the garbage collector for GCC proper. This is a part of Google Summer of Code project, described in detail at http://gcc.gnu.org/wiki/Garbage_collection_tuning. The branch is maintained by Laurynas Biveinis.
ra-improvements
This branch aims to implement several improvements to the current register allocator. Examples include implenting a lower-triangular conflict matrix and register coalescing. It is hoped that these improvements will not only help the current allocator, but will be useful to the other register allocation projects such as RABLE and YARA. This branch will be merged with the dataflow-branch from time to time. The patches for this branch should be marked with the tag [ra-improvements] in the subject line. The branch is maintained by Peter Bergner.
ira
This branch contains the Integrated Register Allocator (IRA). It is based on work done on yara-branch. The latter is more of a research branch because one of its goals (removing reload) is too remote. The ira branch is focused to prepare some code for GCC mainline, hopefully in time for GCC 4.4. IRA still uses reload; it is called integrated because register coalescing and register live range splitting are done on-the-fly during coloring. The branch is maintained by Vladimir Makarov < vmakarov@redhat.com> and will be merged with mainline from time to time. Patches will be marked with the tag [ira] in the subject line.
ira-merge
This branch contains bug fixes for the Integrated Register Allocator (IRA). It is branched from trunk at revision 139590 when IRA was merged into trunk. It is used to track IRA related regressions. Only IRA fixes from trunk will be applied to this branch. Its goal is there should be no "make check" and performance regressions against trunk at revision 139589. The branch is maintained by H.J. Lu <hjl.tools@gmail.com> and Vladimir Makarov < vmakarov@redhat.com>.
sel-sched-branch
This branch contains the implementation of the selective scheduling approach. The goal of the branch is to provide more aggressive scheduler implementation with support for instruction cloning, register renaming, and forward substitution. The branch is maintained by Andrey Belevantsev <abel@ispras.ru> and Maxim Kuvyrkov < mkuvyrkov@ispras.ru> and will be regularly merged with mainline. Patches will be marked with the tag [sel-sched] in the subject line.
incremental-compiler
This branch contains change to turn GCC into an incremental compiler. The branch is maintained by Tom Tromey tromey@redhat.com. Patches for this branch should be marked with the tag [incremental] in the subject line.
gc-improv
This branch is for the development of garbage collector improvements. It is the successor to the boehm-gc branch, but without integration with Boehm's GC. The branch is maintained by Laurynas Biveinis.
milepost-branch
This branch is for GCC developments done in the Milepost project. (http://www.milepost.eu). The branch is maintained by Mircea Namolaru namolaru@il.ibm.com. Patches should be marked with the tag [mpost] in the subject line.
melt-branch
This branch is for a Middle End Lisp Translator branch, including both the plugin Lisp-like facility and static analyzers developped with it. This branch is maintained by Basile Starynkevitch basile@starynkevitch.net. Use the [MELT] tag for patches.
var-mappings-branch
This branch is for improving debug information based on tracking multiple variables per computed value. The branch is maintained by Richard Guenther and Michael Matz. Patches should be marked with the tag [varmap] in the subject line.
stack
This branch contains a new stack alignment framework to automatically align stack for local variables with alignment requirement. The branch is maintained by H.J. Lu <hjl.tools@gmail.com>, Joey Ye <joey.ye@intel.com> and Xuepeng Guo <xuepeng.guo@intel.com>. Patches should be marked with the tag [stack] in the subject line.
mem-ref
This branch is for lowering the GIMPLE IL for memory accesses to a flat representation. See the GCC wiki for a more detailed project description. The branch is maintained by Richard Guenther. Patches should be marked with the tag [mem-ref] in the subject line.
gcc-in-cxx
This branch is for converting GCC to be written in C++. Patches should be marked with the tag [gcc-in-cxx] in the subject line. This branch operates under the general GCC maintainership rules, except that any non-algorithmic maintainer is additionally permitted to approve changes which permit compilation with C++. The branch is maintained by Ian Lance Taylor.
thread-annotations
This branch contains the implementation of thread safety annotations and analysis (http://gcc.gnu.org/wiki/ThreadSafetyAnnotation). The branch is maintained by Le-Chun Wu. Patches and discussion on this branch should be marked with the tag [thread-annotations] in the subject line.
rtl-fud-branch
This branch is for the development of factored use-def chains as an SSA form for RTL. Patches should be marked with the tag [rtl-fud] in the subject line. The branch is maintained by Steven Bosscher and Kenneth Zadeck.
alias-improvements
This branch is for fixing the optimizers to efficiently work with a single alias symbol and for stripping the operand scanner, data-structures and alias computation according to this simplification. Patches should be marked with the tag [alias] in the subject line. The branch is maintained by Richard Guenther.
transactional-memory
This branch is for the development of transactional memory support for gcc. Patches for this branch should be marked [trans-mem] in the subject line. The branch is maintained by Richard Henderson.
c-4_5-branch
This branch is for C standards conformance improvements for GCC 4.5. Patches for this branch should be marked [4.5 C] in the subject line. The branch is maintained by Joseph Myers.
named-addr-spaces-branch
This branch is the development branch to add named address space support for architectures that have multiple address spaces. The CELL/spu architecture adds an __ea keyword to describe extended memory in the host chip address space instead of the local CELL/spu address space. The branch was created by Ben Elliston, and is now maintained by Michael Meissner.
dwarf4
This branch is for support of DWARF-4 features. DWARF-4 is currently under development, so changes on this branch will remain experimental until Version 4 is officially finalized.
plugins
This branch adds plugin functionality to GCC. See the plugins wiki page for details. |
|
免费注册
楼主: prolj
发表于 2009-03-02 12:56
发表于 2009-03-02 13:01
