Contributors to GCC
The GCC project would like to thank its many contributors. Without them the
project would not have been nearly as successful as it has been. Any omissions
in this list are accidental. Feel free to contact
email@example.com if you have been left out
or some of your contributions are not listed. Please keep this list in
Some projects operating under the GCC project maintain their own list
of contributors, such as
the C++ library.
- Analog Devices helped implement the support for complex data types
- John David Anglin for improvements to libstdc++-v3 and the HP-UX port.
- James van Artsdalen wrote the code that makes efficient use of
the Intel 80387 register stack.
- Alasdair Baird for various bugfixes.
- Gerald Baumgartner added the signature extension to the C++ front end.
- Neil Booth for various work on cpplib.
- Per Bothner for his direction via the steering committee and various
improvements to our infrastructure for supporting new languages. Chill
and Java front end implementations. Initial implementations of
cpplib, fix-header, config.guess, libio, and past C++ library
- Devon Bowen helped port GCC to the Tahoe.
- Don Bowman for mips-vxworks contributions.
- Dave Brolley for work on cpplib and Chill.
- Robert Brown implemented the support for Encore 32000 systems.
- Christian Bruel for improvements to local store elimination.
- Herman A.J. ten Brugge for various fixes.
- Joe Buck for his direction via the steering committee.
- Craig Burley for leadership of the Fortran effort.
- Paolo Carlini for his work on libstdc++-v3.
- John Carr for his alias work, SPARC hacking, infrastructure improvements,
previous contributions to the steering committee, loop optimizations, etc.
- Steve Chamberlain wrote the support for the Hitachi SH and H8 processors
and the PicoJava processor.
- Scott Christley for his Objective-C contributions.
- Branko Cibej for more warning contributions.
- Nick Clifton for arm, mcore, fr30, v850, m32r work,
--help, and other random
- Ralf Corsepius for SH testing and minor bugfixing.
- Stan Cox for care and feeding of the x86 port and lots of behind
the scenes hacking.
- Alex Crain provided changes for the 3b1.
- Ian Dall for major improvements to the NS32k port.
- Dario Dariol contributed the four varieties of sample programs
that print a copy of their source.
- Ulrich Drepper for his work on the C++ runtime libraries, glibc,
testing of GCC using glibc, ISO C99 support, CFG dumping support, etc.
- Richard Earnshaw for his ongoing work with the ARM.
- David Edelsohn for his direction via the steering committee,
ongoing work with the RS6000/PowerPC port, and help cleaning up Haifa
- Paul Eggert for random hacking all over GCC.
- Mark Elbrecht for various DJGPP improvements.
- Ben Elliston for his work to move the Objective-C runtime into its
own subdirectory and for his work on autoconf.
- Marc Espie for OpenBSD support.
- Doug Evans for much of the global optimization framework, arc, m32r,
and SPARC work.
- Fred Fish for BeOS support and Ada fixes.
- Peter Gerwinski for various bugfixes and the Pascal front end.
- Kaveh Ghazi for his direction via the steering committee and
amazing work to make
-W -Wall useful.
- Judy Goldberg for c++ contributions.
- Torbjorn Granlund for various fixes and the c-torture testsuite,
multiply- and divide-by-constant optimization, improved long long
support, improved leaf function register allocation, and his direction
via the steering committee.
- Anthony Green for his
-Os contributions and Java front end work.
- Michael K. Gschwind contributed the port to the PDP-11.
- Ron Guilmette implemented the
tools, the support for Dwarf symbolic debugging information, and much of
the support for System V Release 4. He has also worked heavily on the
Intel 386 and 860 support.
- Bruno Haible for improvements in the runtime overhead for EH, new
warnings and assorted bugfixes.
- Andrew Haley for his Java work.
- Chris Hanson assisted in making GCC work on HP-UX for the 9000 series 300.
- Michael Hayes for various thankless work he's done trying to get
the c30/c40 ports functional. Lots of loop and unroll improvements and
- Kate Hedstrom for staking the g77 folks with an initial testsuite.
- Richard Henderson for his ongoing SPARC, alpha, and ia32 work, loop
opts, and generally fixing lots of old problems we've ignored for
years, flow rewrite and lots of further stuff, including reviewing
tons of patches.
- Nobuyuki Hikichi of Software Research Associates, Tokyo, contributed
the support for the Sony NEWS machine.
- Manfred Hollstein for his ongoing work to keep the m88k alive, lots
of testing an bugfixing, particularly of our configury code.
- Steve Holmgren for MachTen patches.
- Jan Hubicka for his x86 port improvements.
- Christian Iseli for various bugfixes.
- Kamil Iskra for general m68k hacking.
- Lee Iverson for random fixes and MIPS testing.
- Andreas Jaeger for various fixes to the MIPS port
- Jakub Jelinek for his SPARC work and sibling call optimizations as well
as lots of bug fixes and test cases.
- Janis Johnson for ia64 testing and fixes and for her quality improvement
- J. Kean Johnston for OpenServer support.
- Klaus Kaempf for his ongoing work to make alpha-vms a viable target.
- David Kashtan of SRI adapted GCC to VMS.
- Geoffrey Keating for his ongoing work to make the PPC work for GNU/Linux
and his automatic regression tester.
- Brendan Kehoe for his ongoing work with g++.
- Oliver M. Kellogg of Deutsche Aerospace contributed the port to the
- Richard Kenner of the New York University Ultracomputer Research
Laboratory wrote the machine descriptions for the AMD 29000, the DEC
Alpha, the IBM RT PC, and the IBM RS/6000 as well as the support for
instruction attributes. He also made changes to better support RISC
processors including changes to common subexpression elimination,
strength reduction, function calling sequence handling, and condition
code support, in addition to generalizing the code for frame pointer
elimination and delay slot scheduling. Richard Kenner was also the
head maintainer of GCC for several years.
- Mumit Khan for various contributions to the cygwin and mingw32 ports and
maintaining binary releases for Windows hosts.
- Robin Kirkham for cpu32 support.
- Mark Klein for PA improvements.
- Thomas Koenig for various bugfixes.
- Bruce Korb for the new and improved fixincludes code.
- Benjamin Kosnik for his g++ work and for leading the libstdc++-v3 effort.
- Charles LaBrec contributed the support for the Integrated Solutions
- Jeff Law for his direction via the steering committee, coordinating the
entire egcs project and GCC 2.95, rolling out snapshots and releases,
handling merges from GCC2, reviewing tons of patches that might have
fallen through the cracks else, and random but extensive hacking.
- Marc Lehmann for his direction via the steering committee and helping
with analysis and improvements of x86 performance.
- Ted Lemon wrote parts of the RTL reader and printer.
- Kriang Lerdsuwanakij for improvements to demangler and various c++ fixes.
- Warren Levy major work on libgcj (Java Runtime Library) and random
work on the Java front end.
- Alain Lichnewsky ported GCC to the MIPS CPU.
- Robert Lipe for OpenServer support, new testsuites, testing, etc.
- Weiwen Liu for testing and various bugfixes.
- Dave Love for his ongoing work with the Fortran front end and
- Martin von Löwis for internal consistency checking infrastructure,
and various C++ improvements including namespace support.
- H.J. Lu for his previous contributions to the steering committee, many x86
bug reports, prototype patches, and keeping the GNU/Linux ports working.
- Greg McGary for random fixes and (someday) bounded pointers.
- Andrew MacLeod for his ongoing work in building a real EH system,
various code generation improvements, work on the global optimizer, etc.
- Vladimir Makarov for hacking some ugly i960 problems, PowerPC
hacking improvements to compile-time performance and overall knowledge
and direction in the area of instruction scheduling.
- Bob Manson for his behind the scenes work on dejagnu.
- Michael Meissner for LRS framework, ia32, m32r, v850, m88k, MIPS,
powerpc, haifa, ECOFF debug support, and other assorted hacking.
- Jason Merrill for his direction via the steering committee and leading
the g++ effort.
- David Miller for his direction via the steering committee, lots of
SPARC work, improvements in jump.c and interfacing with the Linux kernel
- Gary Miller ported GCC to Charles River Data Systems machines.
- Mark Mitchell for his direction via the steering committee, mountains of
C++ work, load/store hoisting out of loops, alias analysis improvements,
restrict support, and serving as release manager for GCC 3.x.
- Alan Modra for various GNU/Linux bits and testing.
- Toon Moene for his direction via the steering committee, Fortran
maintenance, and his ongoing work to make us make Fortran run fast.
- Jason Molenda for major help in the care and feeding of all the services
on the gcc.gnu.org (formerly egcs.cygnus.com) machine--mail, web
services, ftp services, etc etc.
- Catherine Moore for fixing various ugly problems we have sent her
way, including the haifa bug which was killing the Alpha & PowerPC
- David Mosberger-Tang for various Alpha improvements.
- Stephen Moshier contributed the floating point emulator that assists in
cross-compilation and permits support for floating point numbers wider
than 64 bits and for ISO C99 support.
- Bill Moyer for his behind the scenes work on various issues.
- Philippe De Muyter for his work on the m68k port.
- Joseph S. Myers for his work on the PDP-11 port, format checking and ISO
C99 support, and continuous emphasis on (and contributions to) documentation.
- Nathan Myers for his work on libstdc++-v3.
- NeXT, Inc. donated the front end that supports the Objective-C
- Hans-Peter Nilsson for the CRIS and MMIX ports, improvements to the search
engine setup, various documentation fixes and other small fixes.
- Geoff Noer for this work on getting cygwin native builds working.
- David O'Brien for the FreeBSD/alpha, FreeBSD/AMD x86-64, FreeBSD/ARM,
FreeBSD/PowerPC, and FreeBSD/SPARC64 ports and related infrastructure
- Alexandre Oliva for various build infrastructure improvements, scripts and
amazing testing work.
- Melissa O'Neill for various NeXT fixes.
- Rainer Orth for random MIPS work, including improvements to our o32
ABI support, improvements to dejagnu's MIPS support, etc.
- Paul Petersen wrote the machine description for the Alliant FX/8.
- Alexandre Petit-Bianco for his Java work.
- Matthias Pfaller for major improvements to the NS32k port.
- Gerald Pfeifer for his direction via the steering committee, pointing
out lots of problems we need to solve, maintenance of the web pages, and
taking care of documentation maintenance in general.
- Ovidiu Predescu for his work on the Objective-C front end and runtime
- Ken Raeburn for various improvements to checker, MIPS ports and various
cleanups in the compiler.
- David Reese of Sun Microsystems contributed to the Solaris on PowerPC
- Gabriel Dos Reis for contributions and maintenance of libstdc++-v3,
including valarray implementation and limits support.
- Joern Rennecke for maintaining the sh port, loop, regmove & reload
- Loren J. Rittle for improvements to libstdc++-v3 and the FreeBSD port.
- Craig Rodrigues for processing tons of bug reports.
- Gavin Romig-Koch for lots of behind the scenes MIPS work.
- Ken Rose for fixes to our delay slot filling code.
- Paul Rubin wrote most of the preprocessor.
- Juha Sarlin for improvements to the H8 code generator.
- Greg Satz assisted in making GCC work on HP-UX for the 9000 series 300.
- Peter Schauer wrote the code to allow debugging to work on the Alpha.
- William Schelter did most of the work on the Intel 80386 support.
- Bernd Schmidt for various code generation improvements and major
work in the reload pass as well a serving as release manager for
- Andreas Schwab for his work on the m68k port.
- Joel Sherrill for his direction via the steering committee, RTEMS
contributions and RTEMS testing.
- Nathan Sidwell for many C++ fixes/improvements.
- Jeffrey Siegal for helping RMS with the original design of GCC, some
code which handles the parse tree and RTL data structures, constant
folding and help with the original VAX & m68k ports.
- Franz Sirl for his ongoing work with making the PPC port stable
- Andrey Slepuhin for assorted AIX hacking.
- Christopher Smith did the port for Convex machines.
- Randy Smith finished the Sun FPA support.
- Scott Snyder for various fixes.
- Richard Stallman, for writing the original gcc and launching the GNU project.
- Jan Stein of the Chalmers Computer Society provided support for
Genix, as well as part of the 32000 machine description.
- Nigel Stephens for various mips16 related fixes/improvements.
- Jonathan Stone wrote the machine description for the Pyramid computer.
- Graham Stott for various infrastructure improvements.
- Mike Stump for his Elxsi port, g++ contributions over the years and more
recently his vxworks contributions
- Shigeya Suzuki for this fixes for the bsdi platforms.
- Ian Lance Taylor for his mips16 work, general configury hacking,
- Holger Teutsch provided the support for the Clipper CPU.
- Gary Thomas for his ongoing work to make the PPC work for GNU/Linux.
- Philipp Thomas for random bugfixes throughout the compiler
- Kresten Krab Thorup wrote the run time support for the Objective-C
- Michael Tiemann for random bugfixes, the first instruction scheduler,
initial C++ support, function integration, NS32k, SPARC and M88k
machine description work, delay slot scheduling.
- Teemu Torma for thread safe exception handling support.
- Leonard Tower wrote parts of the parser, RTL generator, and RTL
definitions, and of the VAX machine description.
- Tom Tromey for internationalization support and his Java work.
- Lassi Tuura for improvements to config.guess to determine HP processor
- Todd Vierling for contributions for NetBSD ports.
- Dean Wakerley for converting the install documentation from HTML to texinfo
in time for GCC 3.0.
- Krister Walfridsson for random bugfixes.
- John Wehle for various improvements for the x86 code generator,
related infrastructure improvements to help x86 code generation,
value range propagation and other work, WE32k port.
- Zack Weinberg for major work on cpplib and various other bugfixes.
- Dale Wiles helped port GCC to the Tahoe.
- Bob Wilson from Tensilica, Inc. for the Xtensa port.
- Jim Wilson for his direction via the steering committee, tackling hard
problems in various places that nobody else wanted to work on, strength
reduction and other loop optimizations.
- Carlo Wood for various fixes.
- Tom Wood for work on the m88k port.
- Masanobu Yuhara of Fujitsu Laboratories implemented the machine
description for the Tron architecture (specifically, the Gmicro).
- Kevin Zachmann helped ported GCC to the Tahoe.
We'd also like to thank the folks who have contributed time and energy in
- David Billinghurst
- Horst von Brand
- Rodney Brown
- Joe Buck
- Craig Burley
- Ulrich Drepper
- David Edelsohn
- Yung Shing Gene
- Kaveh Ghazi
- Kate Hedstrom
- Richard Henderson
- Manfred Hollstein
- Kamil Iskra
- Christian Joensson
- Jeff Law
- Robert Lipe
- Damon Love
- Dave Love
- H.J. Lu
- Brad Lucier
- Mumit Khan
- Matthias Klose
- Martin Knoblauch
- David Miller
- Toon Moene
- Matthias Mueller
- Alexandre Oliva
- Richard Polton
- David Rees
- Loren J. Rittle
- Peter Schmid
- David Schuler
- Vin Shelton
- Franz Sirl
- Mike Stump
- Carlo Wood
- And many others
And finally we'd like to thank everyone who uses the compiler, submits bug
reports and generally reminds us why we're doing this work in the first place.