[PATCH] D89088: [MBP] Add whole chain to BlockFilterSet instead of individual BB
Guozhi Wei via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Oct 21 17:21:00 PDT 2020
Carrot added a comment.
Then it should be an unknown bug in MBP.
You can debug the function MachineBlockPlacement::buildCFGChains() from following 2 lines, and try to find out when the first BB in FunctionChain is changed.
BlockChain &FunctionChain = *BlockToChain[&F->front()];
buildChain(&F->front(), FunctionChain);
Sorry I can't help you to debug it.
Repository:
rG LLVM Github Monorepo
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https://reviews.llvm.org/D89088/new/
https://reviews.llvm.org/D89088
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