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Re: [patch] rfa: fix problem with reassociating pointer additions
On Mon, Oct 04, 2004 at 11:27:02PM -0400, David Edelsohn wrote:
> GCC does not do it very intelligently, but reassociation can be an
> important optimization when one is trying to create address
> sub-expressions that match the offset addressing modes and auto-increments
> of a target architecture. I am concerned about disabling this type of
> transformation instead of trying to make it smarter.
It sounds like we need to carry around the address-arithmetic-may-trap
property... Why is MIPS using the trapping address operations anyway?
I think it has non-trapping versions of everything we'd need.