[PATCH] Constant folding around pre-increment loads and stores

[Hal Finkel]

----- Original Message -----
> From: "Krzysztof Parzyszek" <kparzysz at codeaurora.org>
> To: llvm-commits at cs.uiuc.edu
> Sent: Monday, February 4, 2013 11:47:41 AM
> Subject: Re: [PATCH] Constant folding around pre-increment loads and stores
> 
> On 1/28/2013 6:40 PM, Hal Finkel wrote:
> >
> > [...] code generation for pre-increment forms of loads and stores.
> 
> IMO, it would be a lot better to have this done late (but before RA).
> I'm not going to try to change anybody's mind though...

Can you be more specific? Do you mean pre-inc formation in general, or just the associated constant folding? and why?

Just to be clear (to other potential reviewers), this patch does not change when the pre-inc formation is done, it just adds some additional (useful) constant folding in a way which should reduce register pressure. As DAGCombine already does this kind of folding, I think this fits with the current scheme.

Thanks again,
Hal

> 
> -Krzysztof
> 
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