[PATCH] D127831: BasicBlockUtils: Add a new way for CreateControlFlowHub()

[Ruiling, Song via Phabricator via llvm-commits]

ruiling created this revision.
ruiling added reviewers: sameerds, bcahoon.
Herald added a subscriber: hiraditya.
Herald added a project: All.
ruiling requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

The existing way of creating the predicate in the guard blocks is using
a boolean value per outgoing block. This would be increase the number of
live booleans as we are having more outgoing blocks. The new way added in
this change is to store one integer to represent the outgoing block we
want to branch to, then at each guard block, an integer equality check
will be performed to decide which a specific outgoing block will be
taken.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127831

Files:
  llvm/lib/Transforms/Utils/BasicBlockUtils.cpp
  llvm/lib/Transforms/Utils/UnifyLoopExits.cpp

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D127831.437059.patch
Type: text/x-patch
Size: 7951 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20220615/1c812e5a/attachment.bin>