[llvm-branch-commits] [mlir] [mlir][linalg] Implement TilingInterface for winograd operators (PR #96184)

[Oleksandr Alex Zinenko via llvm-branch-commits]

================
@@ -2810,9 +2819,117 @@ LogicalResult WinogradInputTransformOp::verify() {
   if (failed(verifyCompatibleShape(expectedOutputShape, outputShape))) {
     return emitOpError("the output shape is not expected");
   }
+
   return success();
 }
 
+SmallVector<Range>
+WinogradInputTransformOp::getIterationDomain(OpBuilder &builder) {
+  Location loc = getLoc();
+  auto indexType = builder.getIndexType();
+  auto zeroAttr = builder.getIntegerAttr(indexType, 0);
+  auto oneAttr = builder.getIntegerAttr(indexType, 1);
+  Value output = getOutput();
+  SmallVector<Range> loopBounds(6);
+  for (unsigned dim = 0; dim < 6; ++dim) {
+    loopBounds[dim].offset = zeroAttr;
+    loopBounds[dim].size = getDimValue(builder, loc, output, dim);
+    loopBounds[dim].stride = oneAttr;
+  }
+  return loopBounds;
+}
+
+SmallVector<utils::IteratorType>
+WinogradInputTransformOp::getLoopIteratorTypes() {
+  SmallVector<utils::IteratorType> iteratorTypes(6,
+                                                 utils::IteratorType::parallel);
+  return iteratorTypes;
+}
+
+LogicalResult WinogradInputTransformOp::getResultTilePosition(
+    OpBuilder &builder, unsigned resultNumber, ArrayRef<OpFoldResult> offsets,
+    ArrayRef<OpFoldResult> sizes, SmallVector<OpFoldResult> &resultOffsets,
+    SmallVector<OpFoldResult> &resultSizes) {
+  auto zeroAttr = builder.getI64IntegerAttr(0);
+  auto oneAttr = builder.getI64IntegerAttr(1);
+
+  resultOffsets.push_back(zeroAttr);
+  resultOffsets.push_back(zeroAttr);
+  resultOffsets.push_back(offsets[2]);
+  resultOffsets.push_back(offsets[3]);
+  resultOffsets.push_back(zeroAttr);
+  resultOffsets.push_back(zeroAttr);
+  resultSizes.push_back(sizes[0]);
+  resultSizes.push_back(sizes[1]);
+  resultSizes.push_back(oneAttr);
+  resultSizes.push_back(oneAttr);
+  resultSizes.push_back(sizes[4]);
+  resultSizes.push_back(sizes[5]);
----------------
ftynse wrote:

Nit: something like `resultOffsets.append({zeroAttr, zeroAttr, offsets[2], offsets[3], zeroAttr, zeroAttr})` may be more readable.

https://github.com/llvm/llvm-project/pull/96184