[PATCH] D30416: [InstCombine] Redo reduceLoadOpStoreWidth in instcombine for bitfield store optimization.

[Wei Mi via Phabricator via llvm-commits]

wmi added a comment.

Although I did't find regression in internal benchmarks testing, I still moved the transformation to codegenprepare because we want to use TargetLowering information to decide how to shrink in some cases.


Repository:
  rL LLVM

https://reviews.llvm.org/D30416