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and subject line closing gcc272 bugs
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From: Richard Kettlewell <[EMAIL PROTECTED]>
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Date: Thu, 27 Apr 2000 17:01:23 +0100 (BST)
To: [EMAIL PROTECTED]
Subject: gcc 2.7.2.3 optimizer bug for long long comparisons
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Package: gcc
Version: 2.7.2.3-7
Here's my test source file:
lyonesse$ cat t.c
#include <limits.h>
void tryit(long long longvalue, int boringvalue) {
if(longvalue < LONG_MIN || longvalue > LONG_MAX)
abort();
}
main() {
tryit(-3, 1);
exit(0);
}
With gcc 2.7.2.3, the optimizer gets it wrong, and so abort() is
called when it shouldn't be:
lyonesse$ gcc -O2 -o t t.c && ./t
Aborted (core dumped)
lyonesse$ gcc -O1 -o t t.c && ./t
Aborted (core dumped)
lyonesse$ gcc -O0 -o t t.c && ./t
lyonesse$ gcc --version
2.7.2.3
egcs however gets it right:
lyonesse$ egcc -O2 -o t t.c && ./t
lyonesse$ egcc -O1 -o t t.c && ./t
lyonesse$ egcc -O0 -o t t.c && ./t
lyonesse$ egcc --version
egcs-2.91.66
If the gcc 2.7 series is dead I suppose this can be fairly safely
ignored. If it's still required for some things (linux kernel
compiles?) then it ought to be fixed however...
ttfn/rjk
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Thu, 12 Apr 2001 23:52:39 +0200 (MEST)
From: Matthias Klose <[EMAIL PROTECTED]>
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Date: Thu, 12 Apr 2001 23:52:39 +0200 (MEST)
To: [EMAIL PROTECTED], [EMAIL PROTECTED],
[EMAIL PROTECTED], [EMAIL PROTECTED],
[EMAIL PROTECTED], [EMAIL PROTECTED],
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Subject: closing gcc272 bugs
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gcc272 (2.7.2.3-18) unstable; urgency=low
* Close all gcc272 in the Debian bug tracking archive. The use of
gcc272 is deprecated. The only reason it exists is to have a
compiler for the linux kernel 2.0.x.
The bug reports for gcc272 are still available on
http://bugs.debian.org/cgi-bin/pkgreport.cgi?pkg=gcc272&archive=yes
Closes: #4429, #4430, 4954, #5367, #6047, #12375, #20606, #20889,
#24788, #26100, #34322, #48726, #54544, #63154.
