[mlir][Linalg] Inline an interface method to its only user.

It seems only the default implementation is ever used, so it doesn't seem
necessary to include this method in the interface.

Differential Revision: https://reviews.llvm.org/D130986

mlir/include/mlir/Dialect/Linalg/IR/LinalgInterfaces.td

@@ -983,26 +983,6 @@ def LinalgStructuredInterface : OpInterface<"LinalgOp"> {
         return detail::canOpOperandsBeDroppedImpl($_op, droppedOperands);
       }]
     >,
-    InterfaceMethod<
-      /*desc=*/[{
-        Return the range of position in the result of the affine map
-        computed by getLoopsToShapesMap() which correspond to the
-        AffineExprs used to access the outputs of the operation.
-      }],
-      /*retTy=*/"std::pair<int64_t, int64_t>",
-      /*methodName=*/"getResultsPositionInLoopsToShapeMap",
-      /*args=*/(ins),
-      /*methodBody=*/"",
-      /*defaultImplementation=*/[{
-        int64_t inputRankSum = 0;
-        int64_t outputRankSum = 0;
-        for(OpOperand *input : getInputOperands())
-          inputRankSum += getRank(input);
-        for(OpOperand *output : getOutputOperands())
-          outputRankSum += getRank(output);
-        return {inputRankSum, inputRankSum + outputRankSum};
-      }]
-    >,
     InterfaceMethod<
       /*desc=*/[{
         Like `getShape`, but only returns statically-known information, without

mlir/lib/Dialect/Linalg/IR/LinalgInterfaces.cpp

@@ -566,6 +566,17 @@ private:
   llvm::SmallBitVector positions;
 };
 
+static std::pair<int64_t, int64_t>
+getResultsPositionInLoopsToShapeMap(LinalgOp &op) {
+  int64_t inputRankSum = 0;
+  int64_t outputRankSum = 0;
+  for (OpOperand *input : op.getInputOperands())
+    inputRankSum += op.getRank(input);
+  for (OpOperand *output : op.getOutputOperands())
+    outputRankSum += op.getRank(output);
+  return {inputRankSum, inputRankSum + outputRankSum};
+}
+
 LogicalResult
 LinalgOp::reifyResultShapes(OpBuilder &b,
                             ReifiedRankedShapedTypeDims &reifiedReturnShapes) {
@@ -582,7 +593,7 @@ LinalgOp::reifyResultShapes(OpBuilder &b,
 
   // Find the position in the above map that represents the shape of the
   // result:dim being inferred.
-  auto resultShapesSubMapPos = getResultsPositionInLoopsToShapeMap();
+  auto resultShapesSubMapPos = getResultsPositionInLoopsToShapeMap(*this);
 
   /// From loopsToShapesMap extract the submap that represents the shape of the
   /// (resultIdx, dim) needed.