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c/7650: gcc generate a wrong code
- From: lium at i-net dot com dot cn
- To: gcc-gnats at gcc dot gnu dot org
- Date: 20 Aug 2002 14:08:57 -0000
- Subject: c/7650: gcc generate a wrong code
- Reply-to: lium at i-net dot com dot cn
>Number: 7650
>Category: c
>Synopsis: gcc generate a wrong code
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: wrong-code
>Submitter-Id: net
>Arrival-Date: Tue Aug 20 07:16:04 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Start Network, inc.
>Release: gcc v3.0
>Organization:
>Environment:
cygwin
>Description:
*
* hi,
* i'm a programmer for a embedded system project,
* i am using the gcc as the compiler. my host is x86, and target machine
* is ARM.
* the follwing is my bug report. would you tell me is it a bug, and if it
* was a bug, how can i avoid facing it.
* thanks in advanced.
*
* GCC BUG REPORT
* when i complid the following source code,
* the gcc complier will generate a big bug,
* which may cause the local variable len get a invalid value.
* it is terrible for me.
* i found it when i disassemble the obj file.
* So, you can disamble the .o file and you will touch the bug.
>How-To-Repeat:
see the attached file's comment
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: