| 58 | } |
| 59 | |
| 60 | void addVectorizationHints(const llvm::Function &F, const llvm::TargetTransformInfo &TTI, |
| 61 | const llvm::Loop *L) { |
| 62 | llvm::SmallVector<llvm::MDNode *, 3> PostTransformMD; |
| 63 | // work-item loops should be vectorizable, so emit metadata to suggest so |
| 64 | if (!llvm::findOptionMDForLoop(L, "llvm.loop.vectorize.enable")) { |
| 65 | auto *MDVectorize = llvm::MDNode::get( |
| 66 | F.getContext(), {llvm::MDString::get(F.getContext(), "llvm.loop.vectorize.enable"), |
| 67 | llvm::ConstantAsMetadata::get(llvm::Constant::getAllOnesValue( |
| 68 | llvm::IntegerType::get(F.getContext(), 1)))}); |
| 69 | PostTransformMD.push_back(MDVectorize); |
| 70 | } |
| 71 | |
| 72 | // enable scalable vectorization |
| 73 | if (TTI.supportsScalableVectors()) { |
| 74 | if (!llvm::findOptionMDForLoop(L, "llvm.loop.vectorize.scalable.enable")) { |
| 75 | auto *MDVectorize = llvm::MDNode::get( |
| 76 | F.getContext(), |
| 77 | {llvm::MDString::get(F.getContext(), "llvm.loop.vectorize.scalable.enable"), |
| 78 | llvm::ConstantAsMetadata::get( |
| 79 | llvm::Constant::getAllOnesValue(llvm::IntegerType::get(F.getContext(), 1)))}); |
| 80 | PostTransformMD.push_back(MDVectorize); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | if (!PostTransformMD.empty()) { |
| 85 | auto *LoopID = |
| 86 | llvm::makePostTransformationMetadata(F.getContext(), L->getLoopID(), {}, PostTransformMD); |
| 87 | L->setLoopID(LoopID); |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | bool markLoopsWorkItem(llvm::Function &F, const llvm::LoopInfo &LI, |
| 92 | const llvm::TargetTransformInfo &TTI) { |
no test coverage detected