[PATCH] D32605: Recognize CTLZ builtin

[Renato Golin via Phabricator via llvm-commits]

rengolin added inline comments.


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Comment at: test/Transforms/LoopIdiom/ARM/ctlz.ll:150
+; Here it will replace the loop -
+; assume builtin is always profitable.
+;
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I'll let Joerg comment on this. It'll depend on the generated code vs. the loop's size, branches, etc.


Repository:
  rL LLVM

https://reviews.llvm.org/D32605