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optimization/2903: Optimization bug with long long arithmetic
- To: gcc-gnats at gcc dot gnu dot org
- Subject: optimization/2903: Optimization bug with long long arithmetic
- From: sean at mcneil dot com
- Date: 22 May 2001 18:51:09 -0000
- Reply-To: sean at mcneil dot com
>Number: 2903
>Category: optimization
>Synopsis: Optimization bug with long long arithmetic
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Tue May 22 11:56:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Sean McNeil
>Release: 3.1 20010522 (experimental)
>Organization:
>Environment:
Linux 2.4.3 host cross compile to arm-wrs-vxworks
>Description:
The attached code produces incorrect results when compiled at -O2 yet is correct without the -On option.
>How-To-Repeat:
compiled with
arm-wrs-vxworks-gcc -c -O2 bad_result.c
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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