diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopVersioning.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopVersioning.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopVersioning.cpp b/llvm/lib/Transforms/Utils/LoopVersioning.cpp index 03eb41b..b605cb2 100644 --- a/llvm/lib/Transforms/Utils/LoopVersioning.cpp +++ b/llvm/lib/Transforms/Utils/LoopVersioning.cpp @@ -269,8 +269,11 @@ bool runImpl(LoopInfo *LI, function_ref<const LoopAccessInfo &(Loop &)> GetLAA, // Now walk the identified inner loops. bool Changed = false; for (Loop *L : Worklist) { + if (!L->isLoopSimplifyForm() || !L->isRotatedForm() || + !L->getExitingBlock()) + continue; const LoopAccessInfo &LAI = GetLAA(*L); - if (L->isLoopSimplifyForm() && !LAI.hasConvergentOp() && + if (!LAI.hasConvergentOp() && (LAI.getNumRuntimePointerChecks() || !LAI.getPSE().getUnionPredicate().isAlwaysTrue())) { LoopVersioning LVer(LAI, LAI.getRuntimePointerChecking()->getChecks(), L, |