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Re: [GSoC] outer-if expressions

On Sat, Jul 26, 2014 at 11:20 PM, Prathamesh Kulkarni
<> wrote:
> Hi,
>    This patch adds support for outer-if expressions.
> Couple of issues:
> a) Doesn't interop with for-pattern, since we don't replace identifier
> in c-expr yet,
> and this gets more complicated with addition of outer-if.

Does it?   Well, we'll see.

> b) I removed ifexpr-locations for now. I am not sure where to output
> if-expr locations
> when there are multiple if-exprs (one outer and one inner).

I'd say we'd use multiple locations, thus record a vector of
if-expr, location tuples.



> * genmatch.c (simplify::ifexpr): Remove.
>       (simplify::ifexpr_location): Likewise.
>       (simplify::simplify): Adjust to changes in simplify and
>                                    add parameter ifexpr_vec_.
>       (dt_simplify::gen_gimple): Adjust to changes in simplify.
>       (dt_simplify::gen_generic): Likewise.
>       (parse_if): New function.
>       (parse_pattern): Add call to parse_if.
> * match.pd: Use outer-if for plus-minus patterns.
> Thanks,
> Prathamesh

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