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Re: [PATCH] - Use of powerpc 64bit instructions in 32bit ABI
On Tue, 14 Oct 2003 17:01:55 -0700
Richard Henderson <rth@redhat.com> wrote:
> You can't possibly submit this as 5000 line patch either. You need
> to split this up into lots of smaller pieces. Each patch should do
> exactly one thing.
As stated in another email, I think the entire approach to
what he's trying to do is wrong so let's address that first.
Platforms like 32-bit Sparc provide exactly this facility and
it doesn't require adding hacks all over the compiler to accomplish
this. Just add machine description patterns for DImode that match
when your mode option is enabled, which allows the 64-bit operations
to be emitted by the compiler.