[llvm] r351520 - Re-enable terminator folding in LoopSimplifyCFG: underlying bugs fixed

[Jordan Rupprecht via llvm-commits]

It looks like this is still causing crashes, so I've temporarily reverted
this as https://reviews.llvm.org/rL351845. I hope to have a repro later
today.

On Thu, Jan 17, 2019 at 9:01 PM Max Kazantsev via llvm-commits <
llvm-commits at lists.llvm.org> wrote:

> Author: mkazantsev
> Date: Thu Jan 17 20:57:32 2019
> New Revision: 351520
>
> URL: http://llvm.org/viewvc/llvm-project?rev=351520&view=rev
> Log:
> Re-enable terminator folding in LoopSimplifyCFG: underlying bugs fixed
>
> Modified:
>     llvm/trunk/lib/Transforms/Scalar/LoopSimplifyCFG.cpp
>
> Modified: llvm/trunk/lib/Transforms/Scalar/LoopSimplifyCFG.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/LoopSimplifyCFG.cpp?rev=351520&r1=351519&r2=351520&view=diff
>
> ==============================================================================
> --- llvm/trunk/lib/Transforms/Scalar/LoopSimplifyCFG.cpp (original)
> +++ llvm/trunk/lib/Transforms/Scalar/LoopSimplifyCFG.cpp Thu Jan 17
> 20:57:32 2019
> @@ -42,7 +42,7 @@ using namespace llvm;
>  #define DEBUG_TYPE "loop-simplifycfg"
>
>  static cl::opt<bool>
> EnableTermFolding("enable-loop-simplifycfg-term-folding",
> -                                       cl::init(false));
> +                                       cl::init(true));
>
>  STATISTIC(NumTerminatorsFolded,
>            "Number of terminators folded to unconditional branches");
>
>
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