| Title | xopreplace (Machine-SUIF pass for replacing a function call by a SUIFvm operator) |
| Author | Nikolaos Kavvadias 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 |
| Contact | nikos@nkavvadias.com |
| Website | http://www.nkavvadias.com |
| Release Date | 02 October 2014 |
| Version | 1.0.0 |
| Rev. history | |
|
2004-10-02 Initial release. |
xopreplace is a transformation pass that is used for replacing occurences of certain function calls by instances of equivalent operators, if such exist. It can be used on the SUIFvm IR (intermediate representation) for replacing builtin functions by SUIFvm operators that provide the same functionality. This allows for expanding basic blocks and identifying better opportunities for optimizations in the context of software and hardware synthesis.
The supported operators currently are:
abs:absolute value
min:minimum of two operands
max:maximum of two operands.
This pass depends on the machine, cfg and suifvm libraries MachSUIF. The xopreplace pass has been tested with MachSUIF 2.02.07.15.
The xopreplace distribution includes the following files:
| /xopreplace | Top-level directory |
| AUTHORS | List of xopreplace authors. |
| LICENSE | The modified BSD license governs xopreplace. |
| README.rst | This file. |
| README.html | HTML version of README. |
| README.pdf | PDF version of README. |
| VERSION | Current version of the project sources. |
| rst2docs.sh | Bash script for generating the HTML and PDF versions of the documentation (README). |
| suif_main.cpp | Entry point for building the standalone program do_xopreplace that implements the pass. |
| suif_pass.cpp | Define the SUIF pass built as the dynamically loadable library libxopreplace.so. |
| suif_main.h | C++ header file for the above. |
| utils.h | C header file with implementations of auxiliary functions. |
| xopreplace.cpp | Implementation of the xopreplace pass. |
| xopreplace.h | C++ header file containing declarations and prototypes for the above. |
Unpack the xopreplace archive wherever you like, e.g. in $MACHSUIFHOME/cfa/xopreplace. You don't need to modify anything in the Makefile, if you have a working MachSUIF 2 installation.
The program binary (do_xopreplace) will be installed at $NCIHOME/bin and the shared library (libxopreplace.so) at $NCIHOME/solib, where NCIHOME is the SUIF 2 top-level directory.
The pass accepts an input file in CFG form to operate. Textual output is generated, written to stdout by default.
Usage synopsys: | $ do_xopreplace test.cfg