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Re: infinite loop in find_avail_set
- To: Bernd Schmidt <bernds at cygnus dot co dot uk>
- Subject: Re: infinite loop in find_avail_set
- From: Jeffrey A Law <law at cygnus dot com>
- Date: Thu, 26 Aug 1999 11:40:40 -0600
- cc: Richard Henderson <rth at cygnus dot com>, gcc-bugs at gcc dot gnu dot org, gcc-patches at gcc dot gnu dot org
- Reply-To: law at cygnus dot com
In message <Pine.LNX.4.10.9908261812110.24202-100000@biriani.cygnus.co.uk>you
write:
> > Contrary to Jeff's analysis, I'd like to present a test case that does
> > in fact result in a loop. I returned to my computer this morning to
> > find that compiling yyparse in cexp.c for stage1 of new_ia32_branch does
> > not complete.
> >
> > There's a built tree at /bcpl/int/rth/egcs/build/new/gcc with z.i being
> > the preprocessed test case, if you have time to look at it quickly.
> > Otherwise I'll look at it further when I get to the office.
>
> It seems that Jeff misremembered having already installed the patch below.
>
> Bernd
>
> * gcse.c (hash_scan_insn): Don't scan obvious no-ops.
I must be going senile. I really thought I had checked that in. It's
obviously
correct. If you haven't do so already, can you please check it in?
Thanks,
jeff