[PATCH] D39340: Modifying reassociate for improved CSE

[Florian Hahn via Phabricator via llvm-commits]

fhahn added a comment.

Initial benchmark results on AArch64 Cortex-A57 for the LLVM test-suite and SPEC2000: -0.64% geomean of runtimes. Noteable changes:

- SingleSource/Benchmarks/Shootout/Shootout-strcat -27.78%
- SingleSource/Benchmarks/Linpack/linpack-pc             -7.23%

No regressions > 1%.

I will run newer SPEC versions too, but that might take a while


Repository:
  rL LLVM

https://reviews.llvm.org/D39340