[Mlir-commits] [mlir] [MLIR][XeGPU] Add Layout Propagation support for multi-reduction/reduction op with scalar result (PR #189133)

[Jianhui Li]

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@@ -546,6 +548,38 @@ xegpu::SliceAttr xegpu::setupMultiReductionResultLayout(
                                DenseI64ArrayAttr::get(context, reductionDims));
 }
 
+/// Sets up layout for Reduction operations by creating a SliceAttr for the
+/// result.
+xegpu::SliceAttr
+xegpu::setupReductionResultLayout(xegpu::LayoutKind layoutKind,
+                                  VectorType srcVecTy,
+                                  const xegpu::uArch::uArch *uArch) {
+
+  auto srcShape = srcVecTy.getShape();
+  auto context = srcVecTy.getContext();
+  auto subgroupSize = uArch->getSubgroupSize();
+  xegpu::LayoutAttr srcLayout;
+
+  if (layoutKind == xegpu::LayoutKind::Subgroup) {
+    assert(true &&
+           "subgroup layout assignment not supported for insertStridedSlice.");
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Jianhui-Li wrote:

fixed

https://github.com/llvm/llvm-project/pull/189133