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Re: Web pass take III
- From: Daniel Berlin <dan at cgsoftware dot com>
- To: "Joseph S. Myers" <jsm28 at cam dot ac dot uk>
- Cc: Jan Hubicka <jh at suse dot cz>, <gcc-patches at gcc dot gnu dot org>
- Date: Fri, 23 Nov 2001 11:47:55 -0500 (EST)
- Subject: Re: Web pass take III
On Fri, 23 Nov 2001, Joseph S. Myers wrote:
> On Fri, 23 Nov 2001, Jan Hubicka wrote:
>
> > + each web individual pseudo register. This allows our register allocation pass
>
> Two spaces after full stops at ends of sentences.
>
> > + to operate on pseudos directly, but also strengthens several other optimization
> > + passes, such as CSE, loop optimizer and trivial dead code remover. It can,
> > + however, make debugging impossible, since variables will no longer stay in a
> > + ``home register''.
>
> Not an objection to this patch, but are there any plans to emit the
> necessary DWARF 2 debugging information to support debugging in such cases
> properly?
Yes.
> What about the Cygnus stabs extensions described in
> gdb/doc/LRS?
No. Even if you did, you wouldn't cover all cases, IIRC.
>
> > + After that each web gets assigned individual pseudo. This allows our register
>
> Two spaces after full stops at ends of sentences.
>
> --
> Joseph S. Myers
> jsm28@cam.ac.uk
>