[PATCH] D68231: [SLC] Allow llvm.pow(x,2.0) -> x*x etc even if no pow() lib func

[Evandro Menezes via Phabricator via llvm-commits]

evandro added a comment.

Indeed, it seemed to be a coarse check in case the following transformations end up calling `pow()`.  However, the only transformation that calls `pow()` is when shrinking to `powf()`, which itself chacks for the availability of this routine.  So this patch seems to address this issue the wrong way.  It seems that removing this check would be better.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D68231/new/

https://reviews.llvm.org/D68231