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Re: 19991023 ICE compiling XFree86
- To: Jeffrey A Law <law at cygnus dot com>
- Subject: Re: 19991023 ICE compiling XFree86
- From: Richard Henderson <rth at cygnus dot com>
- Date: Tue, 26 Oct 1999 21:10:23 -0700
- Cc: Alan Modra <alan at SPRI dot Levels dot UniSA dot Edu dot Au>, gcc-bugs at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
- References: <19991026204835.C20462@cygnus.com> <18859.940995698@upchuck>
On Tue, Oct 26, 1999 at 09:41:38PM -0600, Jeffrey A Law wrote:
> Ummm, presumably the new stuff works after jump2 and it's cross jumping
> opts and reorg?
Hmm. Not after cross-jump -- the CFG is horked at that point.
Dang, I forgot about that.
> I believe that was the whole point behind the unusual definition of
> find_basic_block (I'm guessing this originally came from reorg.c).
Yeah it did. I can't imagine how it used to work though. The
incorrect answer I was seeing wasn't even vaugely close.
So, like, what does reorg need this resource stuff for if it
doesn't have to be right? Does it get some indication that the
data isn't valid and just gives up? I guess some study is in
order....
r~