[llvm-dev] Store unswitch

[Hongbin Zheng via llvm-dev]

Thanks,

Looks like inst combine do the job

On Tue, Apr 25, 2017 at 9:36 PM, Davide Italiano <davide at freebsd.org> wrote:

> On Tue, Apr 25, 2017 at 9:24 PM, Hongbin Zheng via llvm-dev
> <llvm-dev at lists.llvm.org> wrote:
> > Hi,
> >
> > Is there a pass in LLVM that can optimize:
> >
> > if (x)
> >   a[i] = y0;
> > else
> >   a[i] = y1;
> >
> > to
> >
> > a[i] = x ? y0 : y1?
> >
> > I tried opt (3.9) with -O3 but looks like such an optimization do not
> > happened.
> >
>
> The same IR at -O3 for both cases on this example.
> https://godbolt.org/g/Tk2MM8
>
> --
> Davide
>
> "There are no solved problems; there are only problems that are more
> or less solved" -- Henri Poincare
>
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