[PATCH] D68932: [Attributor][MustExecute] Use optimistic information in MustBeExecutedContextExplorer
Johannes Doerfert via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sun Oct 13 23:25:47 PDT 2019
jdoerfert created this revision.
jdoerfert added reviewers: sstefan1, uenoku.
Herald added subscribers: bollu, hiraditya.
Herald added a project: LLVM.
NOTE: This is a prototype. We need a way to keep
MustBeExecutedContextExplorer updates separate from other updates so
they can continue on, then this should help.
This allows optimistic information to be used to answer the question if
a call returns. This will also record dependences between attributes
using the explorer and AAWillReturn/AANoUnwind that are used to improve
the IR information. If the latter ever get fixed, the updates of the
former are triggered and we have better known information available.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D68932
Files:
llvm/include/llvm/Analysis/MustExecute.h
llvm/include/llvm/Transforms/IPO/Attributor.h
llvm/lib/Analysis/MustExecute.cpp
llvm/lib/Transforms/IPO/Attributor.cpp
llvm/test/Transforms/FunctionAttrs/arg_nocapture.ll
llvm/test/Transforms/FunctionAttrs/liveness.ll
llvm/test/Transforms/FunctionAttrs/nonnull.ll
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