[PATCH] D127831: BasicBlockUtils: Add a new way for CreateControlFlowHub()
Ruiling, Song via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 15 00:17:27 PDT 2022
ruiling created this revision.
ruiling added reviewers: sameerds, bcahoon.
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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
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