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Contributors
to GNU CC
In addition to Richard Stallman,
several people have written parts of GNU CC.
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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.
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Paul Rubin wrote most of the
preprocessor.
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Leonard Tower wrote parts of
the parser, RTL generator, and RTL definitions, and the Vax machine description.
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Ted Lemon wrote parts of the
RTL reader and printer.
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Jim Wilson implemented loop
strength reduction and some other loop optimizations.
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Nobuyuki Hikichi of Software
Research Associates, Tokyo, contributed the support for the Sony NEWS machine.
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Charles LaBrec contributed the
support for the Integrated Solutions 68020 system.
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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.
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Gerald Baumgartner added the
signature extension to the C++ front-end.
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Jan Stein of the Chalmers Computer
Society provided support for Genix, as well as part of the 32000 machine
description.
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Randy Smith finished the Sun
FPA support.
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Robert Brown implemented the
support for Encore 32000 systems.
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David Kashtan of SRI adapted
GNU CC to VMS.
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Alex Crain provided changes
for the 3b1.
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Greg Satz and Chris Hanson assisted
in making GNU CC work on HP-UX for the 9000 series 300.
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William Schelter did most of
the work on the Intel 80386 support.
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Christopher Smith did the port
for Convex machines.
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Paul Petersen wrote the machine
description for the Alliant FX/8.
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Dario Dariol contributed the
four varieties of sample programs that print a copy of their source.
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Alain Lichnewsky ported GNU
CC to the MIPS CPU.
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Devon Bowen, Dale Wiles and
Kevin Zachmann ported GNU CC to the Tahoe.
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Jonathan Stone wrote the machine
description for the Pyramid computer.
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Gary Miller ported GNU CC to
Charles River Data Systems machines.
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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.
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Richard Kenner and Michael Tiemann
jointly developed reorg.c,
the delay slot scheduler.
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Mike Meissner and Tom Wood of
Data General finished the port to the Motorola 88000.
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Masanobu Yuhara of Fujitsu Laboratories
implemented the machine description for the Tron architecture (specifically,
the Gmicro).
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NeXT, Inc. donated the front
end that supports the Objective C language.
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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.
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Mike Stump implemented the support
for Elxsi 64 bit CPU.
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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).
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Holger Teutsch provided the
support for the Clipper CPU.
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Kresten Krab Thorup wrote the
run time support for the Objective C language.
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Stephen Moshier contributed
the floating point emulator that assists in cross-compilation and permits
support for floating point numbers wider than 64 bits.
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David Edelsohn contributed the
changes to RS/6000 port to make it support the PowerPC and POWER2 architectures.
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Steve Chamberlain wrote the
support for the Hitachi SH processor.
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Peter Schauer wrote the code
to allow debugging to work on the Alpha.
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Oliver M. Kellogg of Deutsche
Aerospace contributed the port to the MIL-STD-1750A.
-
Michael K. Gschwind contributed
the port to the PDP-11.
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