[PATCH] D69954: [OpenMP][Opt] Delete read-only parallel regions

[Johannes Doerfert via Phabricator via llvm-commits]

jdoerfert created this revision.
jdoerfert added reviewers: kiranchandramohan, ABataev, RaviNarayanaswamy, gtbercea, grokos, sdmitriev, JonChesterfield, hfinkel, fghanim.
Herald added a subscriber: jfb.
Herald added a project: LLVM.
jdoerfert added a parent revision: D69930: [OpenMP] Introduce the OpenMPOpt transformation pass.

If a parallel region is known to be read-only, e.g., after we removed
all dead write accesses in their, we can remove the parallel region as
well.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D69954

Files:
  llvm/lib/Transforms/IPO/OpenMPOpt.cpp
  llvm/test/Transforms/OpenMP/parallel_deletion.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D69954.228269.patch
Type: text/x-patch
Size: 14717 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20191107/242c2175/attachment.bin>