[PATCH] D73804: [GVN] Add GVNOption to control load-pre more fine-grained.

[Hendrik Greving via Phabricator via llvm-commits]

hgreving created this revision.
hgreving added reviewers: asbirlea, rnk, fhahn, reames, skatkov.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.

Adds the global (cl::opt) GVNOption enable-load-in-loop-pre in order                                                                                                                                           
to control whether the optimization will be performed if the load                                                                                                                                              
is part of a loop.

                                                                                                                                     

Adds the lit test Transforms/GVN/PRE/pre-load-in-loop.ll.


Repository:
  rL LLVM

https://reviews.llvm.org/D73804

Files:
  llvm/include/llvm/Transforms/Scalar/GVN.h
  llvm/lib/Transforms/Scalar/GVN.cpp
  llvm/test/Transforms/GVN/PRE/pre-load-in-loop.ll

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