[PATCH] D51195: [InstCombine] Expand the simplification of pow() with nested exp{, 2}()

[Evandro Menezes via Phabricator via llvm-commits]

evandro created this revision.
evandro added reviewers: spatel, efriedma.
Herald added subscribers: llvm-commits, hiraditya.

Expand the simplification of `pow(exp{,2}(x), y)` to all FP types.

This improvement helps some benchmarks in SPEC CPU2000 and CPU2006, such as 252.eon, 447.dealII, 453.povray.  Otherwise, no significant regressions on x86-64 or A64.


Repository:
  rL LLVM

https://reviews.llvm.org/D51195

Files:
  llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
  llvm/test/Transforms/InstCombine/pow-exp.ll

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