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Re: Crossjumping of tablejumps

From: Kiran Kumar <kiran dot kumar at mindspeed dot com>
To: Josef Zlomek <zlomj9am at artax dot karlin dot mff dot cuni dot cz>
Cc: gcc-patches at gcc dot gnu dot org
Date: Wed, 26 Mar 2003 17:24:43 -0500
Subject: Re: Crossjumping of tablejumps
References: <3E81E792.9E608125@mindspeed.com> <20030326180033.GA19016@artax.karlin.mff.cuni.cz>

> 
> When the tables are NOT the same insn and if all jump table entries
> match, references to one jumptable can be replaced by references to
> another resulting in deleting of one jumptable.
> 

Aha, It looks like by the time your code gets executed on two basic
blocks which end with a table branch insns, the "addr_vec" labels would
have become identical, because of the edge forwarding transformations
done by GCC in cleanupcfg.c

Thanks,

Best Regards,
Kiran.

References:
- Crossjumping of tablejumps
  - From: Kiran Kumar
- Re: Crossjumping of tablejumps
  - From: Josef Zlomek

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