Re: target/5505: Doubts about a patch for OSF

[Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>]

The following reply was made to PR target/5505; it has been noted by GNATS.

From: Rainer Orth <ro@TechFak.Uni-Bielefeld.DE>
To: Richard.Kreckel@Uni-Mainz.DE
Cc: gcc-bugs@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Subject: Re: target/5505: Doubts about a patch for OSF
Date: Fri, 22 Feb 2002 23:13:42 +0100 (MET)

 Richard B. Kreckel writes:
 
 > Rainer, you probably know by now that this whole issue has nothing to do
 > at all with CLN?  It seems like your patch breaks anything when using
 
 most likely, yes.
 
 > -fno-exceptions.  Attached is a trial program that only uses doubles and
 
 Only in combination with -O2, it seems.
 
 > some STL containers.  (Sorry for not boiling it down from 100 to 10 lines,
 > I have unfortunately very little time right now.)
 
 Please try to do so: my knowledge of C++ is close to zero, so a minimal
 testcase would help enormously.
 
 > Can you confirm this?  Otherwise we are back with the theory that my boxen
 > are broken / patched wrongly...
 
 Not yet: I get a SEGV even if compiling without any special options:
 
 > g++ -o minor minor.cc
 > ./minor
 permanent of 6x6-matrix
 c==4Segmentation fault
 
 The crash happens in minor.c, l. 80:
 
 80                          Pkey[j] = Pkey[j-1]+1;
 
 j = 0 at this point, so Pkey[j-1] is out of bounds.  The crash happens when
 compiling with Compaq cxx as well.
 
 	Rainer