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Re: [patches] Re: remove hack in find_basic_blocks_1

To: Richard Henderson <rth at redhat dot com>, Jan Hubicka <jh at suse dot cz>, gcc-patches at gcc dot gnu dot org, patches at x86-64 dot org
Subject: Re: [patches] Re: remove hack in find_basic_blocks_1
From: Jan Hubicka <jh at suse dot cz>
Date: Sat, 7 Jul 2001 23:49:31 +0200
References: <20010707133706.G10923@atrey.karlin.mff.cuni.cz> <20010707112314.E2621@redhat.com>

> On Sat, Jul 07, 2001 at 01:37:06PM +0200, Jan Hubicka wrote:
> > find_basic_blocks_1 contains hack to emit NOP after call if block
> > is terminated by it.  It looks like it's time has passed, as compiler
> > now uses edge lists in all cases dealing with CFG.
> 
> Nope.  See regmove for instance.
Hmm, how much work it is to get around that problems?
Are you aware of something else than regmove?
It is more than work needed to make crossjumping aware of skipping nops?
Do I need to update redirect_edge_and_branch to add NOP when jump
is eliminated?

Honza
> 
> 
> r~

Follow-Ups:
- Re: [patches] Re: remove hack in find_basic_blocks_1
  - From: Richard Henderson

References:
- remove hack in find_basic_blocks_1
  - From: Jan Hubicka
- Re: remove hack in find_basic_blocks_1
  - From: Richard Henderson

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