diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/LoopInterchange.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopInterchange.cpp | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopInterchange.cpp b/llvm/lib/Transforms/Scalar/LoopInterchange.cpp index 364acb0..4366418 100644 --- a/llvm/lib/Transforms/Scalar/LoopInterchange.cpp +++ b/llvm/lib/Transforms/Scalar/LoopInterchange.cpp @@ -1146,17 +1146,15 @@ LoopInterchangeProfitability::isProfitablePerLoopCacheAnalysis( if (OuterLoopIt == CostMap.end()) return std::nullopt; + if (CC->getLoopCost(*OuterLoop) == CC->getLoopCost(*InnerLoop)) + return std::nullopt; unsigned InnerIndex = InnerLoopIt->second; unsigned OuterIndex = OuterLoopIt->second; LLVM_DEBUG(dbgs() << "InnerIndex = " << InnerIndex << ", OuterIndex = " << OuterIndex << "\n"); - if (InnerIndex < OuterIndex) - return std::optional<bool>(true); assert(InnerIndex != OuterIndex && "CostMap should assign unique " "numbers to each loop"); - if (CC->getLoopCost(*OuterLoop) == CC->getLoopCost(*InnerLoop)) - return std::nullopt; - return std::optional<bool>(false); + return std::optional<bool>(InnerIndex < OuterIndex); } std::optional<bool> |