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[Bug optimization/13828] access to local array in while loop is optimized away
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 23 Jan 2004 16:19:34 -0000
- Subject: [Bug optimization/13828] access to local array in while loop is optimized away
- References: <20040123095739.13828.a.simon@kent.ac.uk>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-01-23 16:19 -------
Can you stop opening a new bug for an invalid bug.
This is invalid as you are incrementing and acessing current without going through a sequence
point:
localArray[current]=localArray[++current];
This is undefined.
This can be evaluated as:
current++;
localArray[current]=localArray[current];
or
temp = & localArray[current];
current++;
*temp = localArray[current];
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |INVALID
Summary|access to local array in |access to local array in
|while loop is optimized away|while loop is optimized away
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13828