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Re: bug in propagate_one_insn
- To: Richard Henderson <rth at redhat dot com>
- Subject: Re: bug in propagate_one_insn
- From: law at redhat dot com
- Date: Thu, 02 Aug 2001 08:24:12 -0600
- cc: Daniel Berlin <dan at cgsoftware dot com>, gcc-bugs at gcc dot gnu dot org
- Reply-To: law at redhat dot com
In message <20010731145826.B4357@redhat.com>you write:
> On Tue, Jul 31, 2001 at 03:01:37PM -0600, law@redhat.com wrote:
> > Err, how did the arguments end up getting set in a different block from
> > the libcall itself?
>
> Region scheduling moved them.
>
> As far as I can tell, nothing after flow1 uses LIBCALL/RETVAL at all.
> Anyone got a reason not to remove these notes before combine rather
> than waiting until after reload?
Seems reasonable. I think we zap them after reload right now, but if
they're not used between flow1 & reload, we might as well zap them
after flow1.
jeff