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| author | Artur Pilipenko <apilipenko@azulsystems.com> | 2017-05-19 13:59:34 +0000 |
|---|---|---|
| committer | Artur Pilipenko <apilipenko@azulsystems.com> | 2017-05-19 13:59:34 +0000 |
| commit | 46c4e0a4bf1fe3a25daefa40b4104f48a6269e0c (patch) | |
| tree | 546bcb20f1d52f9821c1cfb426313fac577babd0 /llvm/lib/Transforms | |
| parent | 9321e8fcec1f32a5c4ffcea6758db76c2704348a (diff) | |
| download | bcm5719-llvm-46c4e0a4bf1fe3a25daefa40b4104f48a6269e0c.tar.gz bcm5719-llvm-46c4e0a4bf1fe3a25daefa40b4104f48a6269e0c.zip | |
[LoopPredication] NFC. Add an early exit if there is no guards in the loop
llvm-svn: 303424
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopPredication.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopPredication.cpp b/llvm/lib/Transforms/Scalar/LoopPredication.cpp index 0ce60442932..e71448c4308 100644 --- a/llvm/lib/Transforms/Scalar/LoopPredication.cpp +++ b/llvm/lib/Transforms/Scalar/LoopPredication.cpp @@ -272,6 +272,9 @@ bool LoopPredication::runOnLoop(Loop *Loop) { if (II->getIntrinsicID() == Intrinsic::experimental_guard) Guards.push_back(II); + if (Guards.empty()) + return false; + SCEVExpander Expander(*SE, *DL, "loop-predication"); bool Changed = false; |
