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| author | Jessica Paquette <jpaquette@apple.com> | 2018-11-13 22:16:27 +0000 |
|---|---|---|
| committer | Jessica Paquette <jpaquette@apple.com> | 2018-11-13 22:16:27 +0000 |
| commit | b2d53c5d7d8f6e14b9705cca59078e584a7c2951 (patch) | |
| tree | 1d8f0c926209e37060ab0900f3da4330a701c4b5 /llvm/lib/CodeGen | |
| parent | c03328a7c09ffb74af0f82082665388eef7cf735 (diff) | |
| download | bcm5719-llvm-b2d53c5d7d8f6e14b9705cca59078e584a7c2951.tar.gz bcm5719-llvm-b2d53c5d7d8f6e14b9705cca59078e584a7c2951.zip | |
[MachineOutliner][NFC] Exit getOutliningType if there are < 2 candidates
Since we never outline anything with fewer than 2 occurrences, there's no
reason to compute cost model information if there's less than that.
llvm-svn: 346803
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/MachineOutliner.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/MachineOutliner.cpp b/llvm/lib/CodeGen/MachineOutliner.cpp index 1a3a2cfb93e..6b9faddd9b2 100644 --- a/llvm/lib/CodeGen/MachineOutliner.cpp +++ b/llvm/lib/CodeGen/MachineOutliner.cpp @@ -1127,8 +1127,9 @@ unsigned MachineOutliner::findCandidates( OutlinedFunction OF = TII->getOutliningCandidateInfo(CandidatesForRepeatedSeq); - // If we deleted every candidate, then there's nothing to outline. - if (OF.Candidates.empty()) + // If we deleted too many candidates, then there's nothing worth outlining. + // FIXME: This should take target-specified instruction sizes into account. + if (OF.Candidates.size() < 2) continue; std::vector<unsigned> Seq; |
