smith
c3a15af2e5
Compute the registers that are live across each IR instruction, rather than the live-out set. I noticed this while working on a fix for the CallBuiltin instruction. We currently compute which registers are live-out from each instruction, then use the sets to push/pop callee-saved registers around native calls. cgCallHelper() has a hack to remove destination registers from this set, but it's not always precise, because we sometimes call cgCallHelper with different dest registers than were assigned to the instruction, which (rarely) can cause unnecessary spilling. In one case cgLdClsMethodFCache(), one of the src tmps is copied to a destination before the internal call; in that case the dst is not live across the whole instruction but the value must still be preserved across the call. Easy fix: mark it live before cgCallHelper().
HipHop for PHP
HipHop is a high performance PHP toolchain. Currently supported platforms are Linux and FreeBSD. There is no OS X support.
Required Packages
The latest information is available on the wiki
- cmake 2.6 is the minimum version
- g++/gcc 4.3 is the minimum version
- Boost 1.37 is the minimum version
- flex
- bison
- re2c
- libmysql
- libxml2
- libmcrypt
- libicu 4.2 is the minimum version
- openssl
- binutils
- libcap
- gd
- zlib
- tbb Intel's Thread Building Blocks
- Oniguruma
- libpcre
- libexpat
- libmemcached
- google-glog (http://code.google.com/p/google-glog/)
- libc-client2007
- libdwarf
- libelf
- libunwind
The following packages have had slight modifications added to them. Patches are provided and should be made against the current source copies.
- libcurl
- hphp/third_party/libcurl.fb-changes.diff
- libevent 1.4
- hphp/third_party/libevent-1.4.14.fb-changes.diff
Installation
You may need to point CMake to the location of your custom libcurl and libevent, or to any other libraries which needed to be installed. The CMAKE_PREFIX_PATH variable is used to hint to the location.
export CMAKE_PREFIX_PATH=/home/user
To build HipHop, use the following:
Linux:
cd /home/user/dev
git clone git://github.com/facebook/hiphop-php.git
cd hiphop-php
git submodule init
git submodule update
export HPHP_HOME=`pwd`
export HPHP_LIB=`pwd`/bin
cmake .
If you are using FreeBSD instead use export - setenv
Once this is done you can generate the build file. This will return you to the shell. Finally, to build, run make. If any errors occur, it may be required to remove the CMakeCache.txt directory in the checkout.
make
Contributing to HipHop
HipHop is licensed under the PHP and Zend licenses except as otherwise noted.
Before changes can be accepted a Contributors Licensing Agreement must be signed and returned.
Running HipHop
Please see the wiki page