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Contributors
to GNU CC
In addition to Richard Stallman,
several people have written parts of GNU CC.
- The idea of using RTL and
some of the optimization ideas came from the program PO written at the
University of Arizona by Jack Davidson and Christopher Fraser. See “Register
Allocation and Exhaustive Peephole Optimization”, Software Practice and
Experience 14 (9), Sept. 1984, pages 857-866.
- Paul Rubin wrote most of
the preprocessor.
- Leonard Tower wrote parts
of the parser, RTL generator, and RTL definitions, and the Vax machine
description.
- Ted Lemon wrote parts of
the RTL reader and printer.
- Jim Wilson implemented loop
strength reduction and some other loop optimizations.
- Nobuyuki Hikichi of Software
Research Associates, Tokyo, contributed the support for the Sony NEWS machine.
- Charles LaBrec contributed
the support for the Integrated Solutions 68020 system.
- Michael Tiemann of Cygnus
Solutions wrote the front end for C++, as well as the support for inline
functions and instruction scheduling. Also the descriptions of the National
Semiconductor 32000 series CPU, the SPARC CPU and part of the Motorola
88000 CPU.
- Gerald Baumgartner added
the signature extension to the C++ front-end.
- Jan Stein of the Chalmers
Computer Society provided support for Genix, as well as part of the 32000
machine description.
- Randy Smith finished the
Sun FPA support.
- Robert Brown implemented
the support for Encore 32000 systems.
- David Kashtan of SRI adapted
GNU CC to VMS.
- Alex Crain provided changes
for the 3b1.
- Greg Satz and Chris Hanson
assisted in making GNU CC work on HP-UX for the 9000 series 300.
- William Schelter did most
of the work on the Intel 80386 support.
- Christopher Smith did the
port for Convex machines.
- Paul Petersen wrote the
machine description for the Alliant FX/8.
- Dario Dariol contributed
the four varieties of sample programs that print a copy of their source.
- Alain Lichnewsky ported
GNU CC to the MIPS CPU.
- Devon Bowen, Dale Wiles
and Kevin Zachmann ported GNU CC to the Tahoe.
- Jonathan Stone wrote the
machine description for the Pyramid computer.
- Gary Miller ported GNU CC
to Charles River Data Systems machines.
- 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.
- Richard Kenner and Michael
Tiemann jointly developed reorg.c,
the delay slot scheduler.
- Mike Meissner and Tom Wood
of Data General finished the port to the Motorola 88000.
- Masanobu Yuhara of Fujitsu
Laboratories implemented the machine description for the Tron architecture
(specifically, the Gmicro).
- NeXT, Inc. donated the front
end that supports the Objective C language.
- James van Artsdalen wrote
the code that makes efficient use of the Intel 80387 register stack.
- Mike Meissner at the Open
Software Foundation finished the port to the MIPS CPU, including adding
ECOFF debug support, and worked on the Intel port for the Intel 80386 CPU.
- Ron Guilmette implemented
the protoize
and unprotoize
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.
- Torbjorn Granlund implemented
multiply- and divide-by-constant optimization, improved long long support,
and improved leaf function register allocation.
- Mike Stump implemented the
support for Elxsi 64 bit CPU.
- John Wehle added the machine
description for the Western Electric 32000 processor used in several 3b
series machines (no relation to the National Semiconductor 32000 processor).
- Holger Teutsch provided
the support for the Clipper CPU.
- Kresten Krab Thorup wrote
the run time support for the Objective C language.
- Stephen Moshier contributed
the floating point emulator that assists in cross-compilation and permits
support for floating point numbers wider than 64 bits.
- David Edelsohn contributed
the changes to RS/6000 port to make it support the PowerPC and POWER2 architectures.
- Steve Chamberlain wrote
the support for the Hitachi SH processor.
- Peter Schauer wrote the
code to allow debugging to work on the Alpha.
- Oliver M. Kellogg of Deutsche
Aerospace contributed the port to the MIL-STD-1750A.
- Michael K. Gschwind contributed
the port to the PDP-11.