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Re: ICE in simplify_plus_minus when called from loop.c
- From: Richard Henderson <rth at redhat dot com>
- To: Ulrich Weigand <Ulrich dot Weigand at de dot ibm dot com>
- Cc: gcc at gcc dot gnu dot org
- Date: Tue, 5 Mar 2002 14:58:24 -0800
- Subject: Re: ICE in simplify_plus_minus when called from loop.c
- References: <OF5E86B643.6ECA0096-ONC1256B73.005852BB@de.ibm.com>
On Tue, Mar 05, 2002 at 05:22:41PM +0100, Ulrich Weigand wrote:
> Who's at fault? Should loop not use simplify_gen_binary, or should the
> simplify_plus_minus limitation be lifted?
Hum. Until I changed things around recently, simplify_plus_minus
had never been called with so many arguments.
I suppose the only question is whether we want to do the sort of
brute-force search that simplify_plus_minus does on arbitrary
numbers of arguments. If we don't think that number will ever
be REALLY big, then changing simplify_plus_minus would be best.
Otherwise, we change simplify_gen_binary to support failure in
simplify_plus_minus and just call gen_rtx_PLUS.
r~