xref: /llvm-project/mlir/test/Dialect/SparseTensor/sparse_itertion_licm.mlir (revision e276cf0831bfc71ef42eab78368aa487037ac27f)
1// RUN: mlir-opt %s --loop-invariant-code-motion | FileCheck %s
2
3#CSR = #sparse_tensor.encoding<{
4  map = (i, j) -> (
5    i : dense,
6    j : compressed
7  )
8}>
9
10// Make sure that pure instructions are hoisted outside the loop.
11//
12// CHECK: sparse_tensor.values
13// CHECK: sparse_tensor.positions
14// CHECK: sparse_tensor.coordinate
15// CHECK: sparse_tensor.iterate
16func.func @sparse_iterate(%sp : tensor<?x?xf64, #CSR>) {
17  %l1 = sparse_tensor.extract_iteration_space %sp lvls = 0 : tensor<?x?xf64, #CSR>
18                                                         -> !sparse_tensor.iter_space<#CSR, lvls = 0>
19  sparse_tensor.iterate %it1 in %l1 at (%crd) : !sparse_tensor.iter_space<#CSR, lvls = 0> {
20    %0 = sparse_tensor.values %sp : tensor<?x?xf64, #CSR> to memref<?xf64>
21    %1 = sparse_tensor.positions %sp { level = 1 : index } : tensor<?x?xf64, #CSR> to memref<?xindex>
22    %2 = sparse_tensor.coordinates  %sp { level = 1 : index } : tensor<?x?xf64, #CSR> to memref<?xindex>
23    "test.op"(%0, %1, %2) : (memref<?xf64>, memref<?xindex>, memref<?xindex>) -> ()
24  }
25
26  return
27}
28