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Re: [PATCH 06/15] rs6000: Use rldiwi in constant construction
- From: Mike Stump <mikestump at comcast dot net>
- To: Segher Boessenkool <segher at kernel dot crashing dot org>
- Cc: Richard Henderson <rth at redhat dot com>, gcc-patches at gcc dot gnu dot org, David Edelsohn <dje dot gcc at gmail dot com>
- Date: Thu, 13 Aug 2015 11:58:28 -0700
- Subject: Re: [PATCH 06/15] rs6000: Use rldiwi in constant construction
- Authentication-results: sourceware.org; auth=none
- References: <1439341904-9345-1-git-send-email-rth at redhat dot com> <1439341904-9345-7-git-send-email-rth at redhat dot com> <20150812140251 dot GH4711 at gate dot crashing dot org> <55CB6C87 dot 2000802 at redhat dot com> <20150813024346 dot GB19357 at gate dot crashing dot org>
On Aug 12, 2015, at 7:43 PM, Segher Boessenkool <segher@kernel.crashing.org> wrote:
> Yes. And there are much worse problems, like many things not working
> right if your HOST_WIDE_INT would happen to be more than 64 bits; we
> cannot really shake those out because there is no actual system to
> test that on -- but it also doesn't actually matter, because there is
> no system to run it on :-)
Lots of systems support 128 bit types just fine, and one could use TImode for HOST_WIDE_INT, if one really, really wanted to. x86_64 I think is one of those systems.