[PATCH] D49273: [InstCombine] Expand the simplification of pow() into exp2()

[Evandro Menezes via Phabricator via llvm-commits]

evandro added a subscriber: rnk.
evandro added inline comments.


================
Comment at: llvm/trunk/lib/Transforms/Utils/SimplifyLibCalls.cpp:1258
+    else
+      return emitUnaryFloatFnCall(FMul, TLI->getName(LibFunc_exp2), B, Attrs);
   }
----------------
a.elovikov wrote:
> Why don't we guard it with hasUnaryFloatFn similar to line 1264?
I was thinking if this was the reason why this patch was reverted in rL340991.  Will investigate it, thank you.


Repository:
  rL LLVM

https://reviews.llvm.org/D49273