Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!UUNET.UU.NET!infbs!petri%tubsibr
From: infbs!petri%tubsibr@UUNET.UU.NET (Stefan Petri)
Newsgroups: gnu.gcc.bug
Subject: (none)
Message-ID: <8910240118.AA24587@jupiter>
Date: 24 Oct 89 01:18:56 GMT
Sender: daemon@tut.cis.ohio-state.edu
Distribution: gnu
Organization: GNUs Not Usenet
Lines: 42

While compiling src/invent.c o Nethack3.0, patchlevel 5, I encountered a
gcc-bug. The offending piece of code boils down to the following :
(It is the original gcc-1.36 with the insn-not-recognizable-patches from 
 jonathan@comp.vuw.ac.nz and the recent speedup-and-save-space patches
 from tege@sics.SE)

petri@jupiter 157 > gcc -v -Wall -c gcc-bug.c
gcc version 1.36
 /usr/local/lib/gcc-cpp -v -undef -D__GNUC__ -Dpyr -Dunix -D__pyr__ -D__unix__ -
Wall gcc-bug.c /usr/tmp/cc024538.cpp
GNU CPP version 1.36
 /usr/local/lib/gcc-cc1 /usr/tmp/cc024538.cpp -quiet -dumpbase gcc-bug.c -Wall -
version -o /usr/tmp/cc024538.s
GNU C version 1.36 (pyr) compiled by GNU C version 1.36.
default target switches: -munix -mindex -mgnu-stdarg
gcc: Program cc1 got fatal signal 4.
petri@jupiter 158 >

int foo()
{
	char c;

 	return (c ^ 30  ) > (c ^ 40 );
/*
  these also get the signal :
 	return (c ^ 30  ) == (c ^ 40 );
 	return ((int)c ^ 30  ) > (c ^ 40 );

  these are ok :
 	return (c + 30  ) > (c ^ 40 );
 	return (c ^ 30  ) > (c + 40 );
 	return (c ^ 30  ) + (c ^ 40 );
 	return ('a' ^ 30  ) > (c ^ 40 );
 	return (c ^ 40 );
 	return (c ^ 30  ) > (c ^ 40 );
*/
}

S.P.
--
P.S.: sorry, matrx!huey!cindy@MCNC.ORG (Cindy Miller), I just forgot to post my
72K of originial cpp-output ;-)