Mercurial > hg > graal-compiler
view README.md @ 14641:f0bb82ebe30c
Truffle-DSL: some fixes and optimizations to the generated code.
Fixed polymorphic specialization nodes could still reference children in some cases.
Removed generation of getCost methods since they were very expensive to call.
Removed generation of copyPolymorphic, setNext0.
Made generated executeGeneric0 and executeAndSpecialize0 final.
author | Christian Humer <christian.humer@gmail.com> |
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date | Thu, 20 Mar 2014 17:50:41 +0100 |
parents | 8df361535530 |
children | 8dfd3f53ba4a |
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## Building Graal There is a Python script in mxtool/mx.py that simplifies working with the code base. It requires Python 2.7. While you can run this script by using an absolute path, it's more convenient to add graal/mxtool to your PATH environment variable so that the 'mx' helper script can be used. The following instructions in this file assume this setup. Building both the Java and C++ source code comprising the Graal VM can be done with the following simple command. ``` % mx build ``` There are a number of VM configurations supported by mx which can be explicitly specified using the --vm option. However, you'll typically want one of these VM configurations: 1. The 'server' configuration is a standard HotSpot VM that includes the runtime support for Graal but uses the existing compilers for normal compilation (e.g., when the interpreter threshold is hit for a method). Compilation with Graal is only done by explicit requests to the Graal API. This is how Truffle uses Graal. 2. The 'graal' configuration is a VM where all compilation is performed by Graal and no other compilers are built into the VM binary. This VM will bootstrap Graal itself at startup unless the -XX:-BootstrapGraal VM option is given. Unless you use the --vm option with the build command, you will be presented with a dialogue to choose one of the above VM configurations for the build as well as have the option to make it your default for subsequent commands that need a VM specified. To build the debug or fastdebug builds: ``` % mx --vmbuild debug build % mx --vmbuild fastdebug build ``` ## Running Graal To run the VM, use 'mx vm' in place of the standard 'java' command: ``` % mx vm ... ``` To select the fastdebug or debug builds of the VM: ``` % mx --vmbuild fastdebug vm ... % mx --vmbuild debug vm ... ``` ## Other VM Configurations In addition to the VM configurations described above, there are VM configurations that omit all VM support for Graal: ``` % mx --vm server-nograal build % mx --vm server-nograal vm -version java version "1.7.0_25" Java(TM) SE Runtime Environment (build 1.7.0_25-b15) OpenJDK 64-Bit Server VM (build 25.0-b43-internal, mixed mode) ``` ``` % mx --vm client-nograal build % mx --vm client-nograal vm -version java version "1.7.0_25" Java(TM) SE Runtime Environment (build 1.7.0_25-b15) OpenJDK 64-Bit Client VM (build 25.0-b43-internal, mixed mode) ``` These configurations aim to match as closely as possible the VM(s) included in the OpenJDK binaries one can download. No newline at end of file