[Mlir-commits] [mlir] [mlir][linalg] Extend elementwise (PR #124661)

[Rolf Morel]

================
@@ -551,6 +551,122 @@ def BroadcastOp : LinalgStructuredBase_Op<"broadcast", [
   let hasCanonicalizer = 1;
 }
 
+//===----------------------------------------------------------------------===//
+// Op definition for ElementwiseOp
+//===----------------------------------------------------------------------===//
+def ElementwiseOp : LinalgStructuredBase_Op<"elementwise", [
+                   AttrSizedOperandSegments]> {
+  let summary = [{ Performs element-wise operation }];
+  let description = [{
+    Linalg op form which performs element-wise computation.
+
+    The attribute `kind` describes the operation (e.g. add, exp). The operation
+    kind can be any elementwise nary (e.g. unary, binary) operation.
+
+    Affine-maps for operands and result are required to be provided by the user
+    when transpose and/or broadcast is needed on any operand. When a map is not
+    provided, default identity maps are inferred for each operand. The number
+    of dims in each of the identity maps is equal to the rank of the output type.
+    In the case of default indexing map, all input and output shapes must match.
+    User-defined affine-map for operands and result must only be projected
+    permutations with no zero constants.
+
+    For elementwise, iterator-types are always `all parallel`.
+    Iterator-types are needed for constructing the underlying structured op.
----------------
rolfmorel wrote:

Agreed on this.

https://github.com/llvm/llvm-project/pull/124661