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Article #1766

Re: Compiler Bug

#1766
From: Jim Gettys
Date: Thu, 26 Jul 1990 13:50
39 lines
966 bytes
Sounds like a bug under 3.1....

Results under 4.0 (which has a new compiler suite...)
cat >foo.c
char *   malloc();

main()
{
  char *   ba;
  int i=3;
  printf("%d\n", i*(-6) );
  ba = malloc (100);
  printf("%d\n", i*(-6) );
}
zorch % cc -O foo.c -o foo
zorch % foo
-18
-18
zorch % cc foo.c -o foo
zorch % foo
-18
-18
zorch % cc -O0 foo.c -o foo
zorch % foo
-18
-18
zorch % cc -O3 foo.c -o foo
zorch % foo
-18
-18
zorch % cc -O4 foo.c -o foo
zorch % foo
-18
-18
zorch % cc -O1 foo.c -o foo
zorch % foo
-18
-18
zorch %
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Message-ID: <5889@crltrx.crl.dec.com>
Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!decwrl!bacchus.pa.dec.com!deccrl!crltrx!jg
References: <3152@rwthinf.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!decwrl!bacchus.pa.dec.com!deccrl!crltrx!jg
From: jg@crl.dec.com (Jim Gettys)
Newsgroups: comp.sys.dec
Subject: Re: Compiler Bug
Message-ID: <5889@crltrx.crl.dec.com>
Date: 26 Jul 90 13:50:21 GMT
References: <3152@rwthinf.UUCP>
Sender: news@crltrx.crl.dec.com
Reply-To: jg@crl.dec.com (Jim Gettys)
Distribution: comp
Organization: DEC Cambridge Research Lab
Lines: 39