On Mon, 28 Nov 2016, Richard Biener wrote:
>
> The following fixes an optimization regression noted in PR78546 where
> moving patterns from forwprop to match.pd missed one variant.
>
> Bootstrap & regtest running on x86_64-unknown-linux-gnu.
The following is what I have applied (note the fix, t
Hi Richard,
I am just wondering if this might be a mistake,
because this looks somehow odd:
> + /* CST - (CST - A) -> CST - A */
> + (simplify
> + (minus CONSTANT_CLASS_P@1 (minus CONSTANT_CLASS_P@2 @0))
> + (with { tree cst = const_binop (MINUS_EXPR, type, @1, @2); }
> +(if (cst
