[llvm] r282872 - CVP. Turn marking adds as no wrap on by default (was turned off by 279082)

[Hans Wennborg via llvm-commits]

This was reverted in r296030 due to PR31181.

On Fri, Sep 30, 2016 at 9:20 AM, Artur Pilipenko via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
> Author: apilipenko
> Date: Fri Sep 30 11:20:08 2016
> New Revision: 282872
>
> URL: http://llvm.org/viewvc/llvm-project?rev=282872&view=rev
> Log:
> CVP. Turn marking adds as no wrap on by default (was turned off by 279082)
>
> With 282650 in tree extra no wrap on adds doesn't cause regressions anymore. Reenable the optimzation.
>
> Modified:
>     llvm/trunk/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
>
> Modified: llvm/trunk/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp?rev=282872&r1=282871&r2=282872&view=diff
> ==============================================================================
> --- llvm/trunk/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp (original)
> +++ llvm/trunk/lib/Transforms/Scalar/CorrelatedValuePropagation.cpp Fri Sep 30 11:20:08 2016
> @@ -40,7 +40,7 @@ STATISTIC(NumDeadCases, "Number of switc
>  STATISTIC(NumSDivs,     "Number of sdiv converted to udiv");
>  STATISTIC(NumSRems,     "Number of srem converted to urem");
>
> -static cl::opt<bool> DontProcessAdds("cvp-dont-process-adds", cl::init(true));
> +static cl::opt<bool> DontProcessAdds("cvp-dont-process-adds", cl::init(false));
>
>  namespace {
>    class CorrelatedValuePropagation : public FunctionPass {
>
>
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