Optimizing flags

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Article #52136

#52136

From: Cho Wongyu
Date: Mon, 08 Feb 1993 05:09

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1505 bytes

Hello.
I am using gcc2.2.2(?) on my Linux 0.99pl4, and found that my same program
generates different results depending on the optimizing level.
Some program even core dumps if the -g flag is not used.
The same code works well under SPARC2 with gcc. Is this a bug of gcc,
or Linux, or the 'port' of gcc to Linux?
Has anyone encountered this problem before?

I am suspecting gcc, since I used gcc for RS/6000 AIX before and with some
code, if I don't put a dummy printf line, it would core dump, and for
some pattern recognizion program, the -O flag wouldn't generate the same
recognition result as it turned off.

Any kind of comments, helps are appreciated.

Wongyu Cho
--
    ********                
   *  *******         Wongyu Cho
 **  **               Computer Science Dept.
*** *** *** ***       Korea Advanced Institute of Science and Technology

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From: wgcho@cair.kaist.ac.kr (Cho Wongyu)
Newsgroups: gnu.gcc.help
Subject: Optimizing flags
Message-ID: <1993Feb8.050928.14576@worak.kaist.ac.kr>
Date: 8 Feb 93 05:09:28 GMT
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