1 files changed, 80 insertions, 0 deletions
diff --git a/include/linalg3/Transforms.h b/include/linalg3/Transforms.h
new file mode 100644
index 0000000..9af528e
--- /dev/null
+++ b/include/linalg3/Transforms.h
@@ -0,0 +1,80 @@
+//===- Transforms.h - Linalg dialect Transformations definition -----------===//
+//
+// Copyright 2019 The MLIR Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// =============================================================================
+
+#ifndef LINALG3_TRANSFORMS_H_
+#define LINALG3_TRANSFORMS_H_
+
+#include "linalg2/Transforms.h"
+#include "mlir/Support/LLVM.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/Optional.h"
+
+namespace mlir {
+class AffineForOp;
+class AffineMap;
+class Function;
+class FunctionPassBase;
+class Operation;
+class Value;
+} // namespace mlir
+
+namespace linalg {
+
+struct RangeParts {
+  explicit RangeParts(unsigned reserved);
+  RangeParts(llvm::ArrayRef<mlir::Value *> ranges);
+  llvm::SmallVector<mlir::Value *, 4> makeRanges();
+
+  llvm::SmallVector<mlir::Value *, 4> mins;
+  llvm::SmallVector<mlir::Value *, 4> maxes;
+  llvm::SmallVector<mlir::Value *, 4> steps;
+};
+
+mlir::Value *
+makeFoldedComposedAffineApply(mlir::AffineMap map,
+                              llvm::ArrayRef<mlir::Value *> operandsRef);
+
+llvm::SmallVector<mlir::Value *, 4>
+makeGenericLoopRanges(mlir::AffineMap operandRangesToLoopMaps,
+                      llvm::ArrayRef<mlir::Value *> ranges,
+                      llvm::ArrayRef<mlir::Value *> tileSizes = {});
+
+/// Traverses `f` and rewrites linalg.slice, and the operations it depends on,
+/// to only use linalg.view operations.
+void composeSliceOps(mlir::Function *f);
+
+/// Traverses `f` and rewrites linalg.matmul(resp. linalg.matvec)
+/// as linalg.matvec(resp. linalg.dot).
+void lowerToFinerGrainedTensorContraction(mlir::Function *f);
+
+/// Operation-wise writing of linalg operations to loop form.
+/// It is the caller's responsibility to erase the `op` if necessary.
+/// This returns the enclosing loops around the body of `op` for further
+/// composition of transformations.
+llvm::Optional<llvm::SmallVector<mlir::AffineForOp, 4>>
+writeAsLoops(mlir::Operation *op);
+
+/// Traverses `f` and rewrites linalg operations in loop form.
+void lowerToLoops(mlir::Function *f);
+
+/// Creates a pass that rewrites linalg.load and linalg.store to affine.load and
+/// affine.store operations.
+mlir::FunctionPassBase *createLowerLinalgLoadStorePass();
+
+} // namespace linalg
+
+#endif // LINALG3_TRANSFORMS_H_