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c/4065: Field out of range. (Big switch causes compilation failure)
- To: gcc-gnats at gcc dot gnu dot org
- Subject: c/4065: Field out of range. (Big switch causes compilation failure)
- From: bruno at fc dot hp dot com
- Date: 20 Aug 2001 17:19:19 -0000
- Cc: djob at fc dot hp dot com,
- Reply-To: bruno at fc dot hp dot com
>Number: 4065
>Category: c
>Synopsis: Field out of range. (Big switch causes compilation failure)
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Aug 20 10:26:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: bruno@fc.hp.com
>Release: gcc 2.95.2, gcc 3.0
>Organization:
>Environment:
HP-UX 10.20
>Description:
We get an assembler error of the form
Error: Field out of range [-262144..262143] (640184)
>From the gas sources this is due to a branch offset
being too large.
It looks like the compiler tries to generate too big a
branch offset in a big switch (or large function ?)
>How-To-Repeat:
Compile and run the attached program. This generates a
C source code with a switch that has n cases, n being the
argument you gave to the attached program.
Redirect the output to a file (say t.c) and compile t.c
Both gcc and g++ fail.
n=10000 causes the error message.
n=7000 causes a different error.
We found the bug on a Bison generated file.
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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