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| author | Davide Italiano <davide@freebsd.org> | 2016-05-29 00:41:17 +0000 |
|---|---|---|
| committer | Davide Italiano <davide@freebsd.org> | 2016-05-29 00:41:17 +0000 |
| commit | 39893bd41c210ec6428d5a13124613716a0d52b1 (patch) | |
| tree | cc1ada3e0029585d629c0b5c28bffb7d2b6daf79 /llvm/lib/Transforms/Scalar/Reassociate.cpp | |
| parent | 7066905ef30869f55a3998638ec8847814310f4f (diff) | |
| download | llvm-39893bd41c210ec6428d5a13124613716a0d52b1.zip llvm-39893bd41c210ec6428d5a13124613716a0d52b1.tar.gz llvm-39893bd41c210ec6428d5a13124613716a0d52b1.tar.bz2 | |
[PM] Reassociate: cache analyses more aggressively.
While here, add a FIXME for setPreserveCFG().
llvm-svn: 271159
Diffstat (limited to 'llvm/lib/Transforms/Scalar/Reassociate.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/Reassociate.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Scalar/Reassociate.cpp b/llvm/lib/Transforms/Scalar/Reassociate.cpp index 6b761c5..75f646d 100644 --- a/llvm/lib/Transforms/Scalar/Reassociate.cpp +++ b/llvm/lib/Transforms/Scalar/Reassociate.cpp @@ -2227,8 +2227,13 @@ PreservedAnalyses ReassociatePass::run(Function &F) { RankMap.clear(); ValueRankMap.clear(); - if (MadeChange) - return PreservedAnalyses::none(); + if (MadeChange) { + // FIXME: Reassociate should also 'preserve the CFG'. + // The new pass manager has currently no way to do it. + auto PA = PreservedAnalyses(); + PA.preserve<GlobalsAA>(); + return PA; + } return PreservedAnalyses::all(); } |