xref: /llvm-project/mlir/test/Dialect/NVGPU/transform-create-async-groups.mlir (revision bb6d5c220004a5d7e466a669324001285a688918)

// RUN: mlir-opt %s -transform-interpreter -split-input-file --verify-diagnostics | FileCheck %s

// Check that we produce async copies from the vector.transfer_xxx operations.
builtin.module {
  // CHECK-LABEL: @copies_to_asyncs
  func.func @copies_to_asyncs(%a: memref<1024x1024xf32>) {
    %0 = memref.alloc() : memref<4x32x16xf32, #gpu.address_space<workgroup>>
    %c0 = arith.constant 0 : index
    %c4 = arith.constant 4 : index
    %cst_0 = arith.constant 0.000000e+00 : f32
    // Make sure we emit the bypassL1.
    // CHECK: %[[CP0:.*]] = nvgpu.device_async_copy {{.*}}, {{.*}}, 4  {bypassL1} :
    %1 = vector.transfer_read %a[%c0, %c0], %cst_0 {in_bounds = [true]} : memref<1024x1024xf32>, vector<4xf32>
    vector.transfer_write %1, %0[%c0, %c0, %c0] {in_bounds = [true]} : vector<4xf32>, memref<4x32x16xf32, #gpu.address_space<workgroup>>
    // CHECK-NOT: nvgpu.device_async_create_group

    // CHECK: %[[CP1:.*]] = nvgpu.device_async_copy {{.*}}, {{.*}}, 1
    %2 = vector.transfer_read %a[%c0, %c4], %cst_0 {in_bounds = [true]} : memref<1024x1024xf32>, vector<1xf32>
    vector.transfer_write %2, %0[%c0, %c4, %c0] {in_bounds = [true]} : vector<1xf32>, memref<4x32x16xf32, #gpu.address_space<workgroup>>
    // CHECK: %[[G:.*]] = nvgpu.device_async_create_group %[[CP0]], %[[CP1]]
    // CHECK: nvgpu.device_async_wait %[[G]]
    return
  }

  module attributes {transform.with_named_sequence} {
    transform.named_sequence @__transform_main(%variant_op: !transform.any_op {transform.readonly}) {
      %top_level_func = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.nvgpu.create_async_groups %top_level_func {bypass_l1} : (!transform.any_op) -> (!transform.any_op)
      transform.yield
    }
  }
}

// -----

// Check that we properly take `bypass_l1 = false` into account.
// I.e., we shouldn't be generating bypassL1 attributes.
builtin.module {
  // CHECK-LABEL: @copies_to_asyncs_no_mma
  func.func @copies_to_asyncs_no_mma(%a: memref<1024x1024xf32>) {
    %0 = memref.alloc() : memref<4x32x16xf32, #gpu.address_space<workgroup>>
    %c0 = arith.constant 0 : index
    %c4 = arith.constant 4 : index
    %cst_0 = arith.constant 0.000000e+00 : f32
    // Make sure we don't emit the bypassL1.
    // CHECK: %[[CP0:.*]] = nvgpu.device_async_copy {{.*}}, {{.*}}, 4 :
    %1 = vector.transfer_read %a[%c0, %c0], %cst_0 {in_bounds = [true]} : memref<1024x1024xf32>, vector<4xf32>
    vector.transfer_write %1, %0[%c0, %c0, %c0] {in_bounds = [true]} : vector<4xf32>, memref<4x32x16xf32, #gpu.address_space<workgroup>>
    // CHECK-NOT: nvgpu.device_async_create_group

    // CHECK: %[[CP1:.*]] = nvgpu.device_async_copy {{.*}}, {{.*}}, 1 :
    %2 = vector.transfer_read %a[%c0, %c4], %cst_0 {in_bounds = [true]} : memref<1024x1024xf32>, vector<1xf32>
    vector.transfer_write %2, %0[%c0, %c4, %c0] {in_bounds = [true]} : vector<1xf32>, memref<4x32x16xf32, #gpu.address_space<workgroup>>
    // CHECK: %[[G:.*]] = nvgpu.device_async_create_group %[[CP0]], %[[CP1]]
    // CHECK: nvgpu.device_async_wait %[[G]]
    return
  }

  module attributes {transform.with_named_sequence} {
    transform.named_sequence @__transform_main(%variant_op: !transform.any_op {transform.readonly}) {
      %top_level_func = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.nvgpu.create_async_groups %top_level_func : (!transform.any_op) -> (!transform.any_op)
      transform.yield
    }
  }
}

// -----

// Check that pattern works with vector.load/vector.store.
builtin.module {
  // CHECK-LABEL: @copies_to_asyncs_load_store
  func.func @copies_to_asyncs_load_store(%a: memref<1024x1024xf32>) {
    %0 = memref.alloc() : memref<4x32x16xf32, #gpu.address_space<workgroup>>
    %c0 = arith.constant 0 : index
    %c4 = arith.constant 4 : index
    %cst_0 = arith.constant 0.000000e+00 : f32
    // CHECK: %[[CP0:.*]] = nvgpu.device_async_copy {{.*}}, {{.*}}, 4 :
    %1 = vector.load %a[%c0, %c0] : memref<1024x1024xf32>, vector<4xf32>
    vector.store %1, %0[%c0, %c0, %c0] : memref<4x32x16xf32, #gpu.address_space<workgroup>>, vector<4xf32>
    // CHECK-NOT: nvgpu.device_async_create_group

    // CHECK: %[[CP1:.*]] = nvgpu.device_async_copy {{.*}}, {{.*}}, 1 :
    %2 = vector.load %a[%c0, %c4] : memref<1024x1024xf32>, vector<1xf32>
    vector.store %2, %0[%c0, %c4, %c0] : memref<4x32x16xf32, #gpu.address_space<workgroup>>, vector<1xf32>
    // CHECK: %[[G:.*]] = nvgpu.device_async_create_group %[[CP0]], %[[CP1]]
    // CHECK: nvgpu.device_async_wait %[[G]]
    return
  }

  module attributes {transform.with_named_sequence} {
    transform.named_sequence @__transform_main(%variant_op: !transform.any_op {transform.readonly}) {
      %top_level_func = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.nvgpu.create_async_groups %top_level_func : (!transform.any_op) -> (!transform.any_op)
      transform.yield
    }
  }
}

// -----

// Check that pattern skips unaligned and unsupported sizes.
builtin.module {
  // CHECK-LABEL: @copies_to_asyncs_load_store
  func.func @copies_to_asyncs_load_store(%a: memref<1024x1024xf32>, %b: memref<1024x1024xf16>) {
    %alloc = memref.alloc() : memref<4x32x16xf32, #gpu.address_space<workgroup>>
    %alloc_1 = memref.alloc() : memref<4x32x16xf16, #gpu.address_space<workgroup>>
    %c0 = arith.constant 0 : index
    %c4 = arith.constant 4 : index
    %cst_0 = arith.constant 0.000000e+00 : f32

    // Requires 1-D vector load
    // CHECK-NOT: nvgpu.device_async_copy
    //     CHECK: vector.load
    //     CHECK: vector.store
    %1 = vector.load %a[%c0, %c4] : memref<1024x1024xf32>, vector<2x2xf32>
    vector.store %1, %alloc[%c0, %c4, %c0] : memref<4x32x16xf32, #gpu.address_space<workgroup>>, vector<2x2xf32>
    // CHECK-NOT: nvgpu.device_async_create_group

    // CHECK-NOT: nvgpu.device_async_copy
    //     CHECK: vector.load
    //     CHECK: vector.store
    %2 = vector.load %b[%c0, %c4] : memref<1024x1024xf16>, vector<1xf16>
    vector.store %2, %alloc_1[%c0, %c4, %c0] : memref<4x32x16xf16, #gpu.address_space<workgroup>>, vector<1xf16>
    // CHECK-NOT: nvgpu.device_async_create_group
    return
  }

  module attributes {transform.with_named_sequence} {
    transform.named_sequence @__transform_main(%variant_op: !transform.any_op {transform.readonly}) {
      %top_level_func = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.nvgpu.create_async_groups %top_level_func : (!transform.any_op) -> (!transform.any_op)
      transform.yield
    }
  }
}

// -----

// vector.transfer_read with a mask.
builtin.module {
  // CHECK-LABEL: @read_with_mask(
  // CHECK-SAME: %{{.*}}: memref<1024x1024xf32>, %[[sz:.*]]: index
  func.func @read_with_mask(%a: memref<1024x1024xf32>, %sz: index) {
    %0 = memref.alloc() : memref<4x32x16xf32, #gpu.address_space<workgroup>>
    %c0 = arith.constant 0 : index
    %cst_0 = arith.constant 0.000000e+00 : f32
    // CHECK: nvgpu.device_async_copy {{.*}}, {{.*}}, 4, %[[sz]] {bypassL1} :
    %mask = vector.create_mask %sz : vector<4xi1>
    %1 = vector.transfer_read %a[%c0, %c0], %cst_0, %mask {in_bounds = [true]} : memref<1024x1024xf32>, vector<4xf32>
    vector.transfer_write %1, %0[%c0, %c0, %c0] {in_bounds = [true]} : vector<4xf32>, memref<4x32x16xf32, #gpu.address_space<workgroup>>

    return
  }

  module attributes {transform.with_named_sequence} {
    transform.named_sequence @__transform_main(%variant_op: !transform.any_op {transform.readonly}) {
      %top_level_func = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.nvgpu.create_async_groups %top_level_func {bypass_l1} : (!transform.any_op) -> (!transform.any_op)
      transform.yield
    }
  }
}

// -----

// 2D vector.transfer_read with a mask.
builtin.module {
  // CHECK-LABEL: @read_2d_with_mask(
  //  CHECK-SAME:     %[[sz0:.*]]: index, %[[sz1:.*]]: index, %[[a:.*]]: memref<1024x1024xf32>
  func.func @read_2d_with_mask(%sz0: index, %sz1: index, %a: memref<1024x1024xf32>) {
    // CHECK-DAG: %[[c0:.*]] = arith.constant 0 : index
    // CHECK-DAG: %[[c1:.*]] = arith.constant 1 : index
    // CHECK-DAG: %[[c2:.*]] = arith.constant 2 : index
    %0 = memref.alloc() : memref<4x32x16xf32, #gpu.address_space<workgroup>>
    %c0 = arith.constant 0 : index
    %cst_0 = arith.constant 0.000000e+00 : f32

    // CHECK: %[[cmpi0:.*]] = arith.cmpi slt, %[[c0]], %[[sz0]]
    // CHECK: %[[s0:.*]] = arith.select %[[cmpi0]], %[[sz1]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c0]], %[[c0]]], {{.*}}, 4, %[[s0]] {bypassL1}

    // CHECK: %[[cmpi1:.*]] = arith.cmpi slt, %[[c1]], %[[sz0]]
    // CHECK: %[[s1:.*]] = arith.select %[[cmpi1]], %[[sz1]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c1]], %[[c0]]], {{.*}}, 4, %[[s1]] {bypassL1}

    // CHECK: %[[cmpi2:.*]] = arith.cmpi slt, %[[c2]], %[[sz0]]
    // CHECK: %[[s2:.*]] = arith.select %[[cmpi2]], %[[sz1]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c2]], %[[c0]]], {{.*}}, 4, %[[s2]] {bypassL1}
    %mask = vector.create_mask %sz0, %sz1 : vector<3x4xi1>
    %1 = vector.transfer_read %a[%c0, %c0], %cst_0, %mask {in_bounds = [true, true]} : memref<1024x1024xf32>, vector<3x4xf32>
    vector.transfer_write %1, %0[%c0, %c0, %c0] {in_bounds = [true, true]} : vector<3x4xf32>, memref<4x32x16xf32, #gpu.address_space<workgroup>>

    return
  }

  module attributes {transform.with_named_sequence} {
    transform.named_sequence @__transform_main(%variant_op: !transform.any_op {transform.readonly}) {
      %top_level_func = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.apply_patterns to %top_level_func {
        transform.apply_patterns.vector.transfer_to_scf max_transfer_rank = 1 full_unroll = true
      } : !transform.any_op
      transform.nvgpu.create_async_groups %top_level_func {bypass_l1} : (!transform.any_op) -> (!transform.any_op)
      %top_level_func_2 = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.apply_cse to %top_level_func_2 : !transform.any_op
      transform.yield
    }
  }
}

// -----

// 3D vector.transfer_read with a mask.
builtin.module {
  // CHECK-LABEL: @read_3d_with_mask(
  //  CHECK-SAME:     %[[sz0:.*]]: index, %[[sz1:.*]]: index, %[[sz2:.*]]: index, %[[a:.*]]: memref<1024x1024x1024xf32>
  func.func @read_3d_with_mask(%sz0: index, %sz1: index, %sz2: index, %a: memref<1024x1024x1024xf32>) {
    // CHECK-DAG: %[[c0:.*]] = arith.constant 0 : index
    // CHECK-DAG: %[[c1:.*]] = arith.constant 1 : index
    // CHECK-DAG: %[[c2:.*]] = arith.constant 2 : index
    %0 = memref.alloc() : memref<4x32x16xf32, #gpu.address_space<workgroup>>
    %c0 = arith.constant 0 : index
    %cst_0 = arith.constant 0.000000e+00 : f32

    // CHECK: %[[cmpi0:.*]] = arith.cmpi slt, %[[c0]], %[[sz0]]
    // CHECK: %[[cmpi1:.*]] = arith.cmpi slt, %[[c0]], %[[sz1]]
    // CHECK: %[[cond0:.*]] = arith.andi %[[cmpi1]], %[[cmpi0]]
    // CHECK: %[[s0:.*]] = arith.select %[[cond0]], %[[sz2]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c0]], %[[c0]], %[[c0]]], {{.*}}, 4, %[[s0]] {bypassL1}

    // CHECK: %[[cmpi2:.*]] = arith.cmpi slt, %[[c1]], %[[sz1]]
    // CHECK: %[[cond1:.*]] = arith.andi %[[cmpi2]], %[[cmpi0]]
    // CHECK: %[[s1:.*]] = arith.select %[[cond1]], %[[sz2]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c0]], %[[c1]], %[[c0]]], {{.*}}, 4, %[[s1]] {bypassL1}

    // CHECK: %[[cmpi3:.*]] = arith.cmpi slt, %[[c2]], %[[sz1]]
    // CHECK: %[[cond2:.*]] = arith.andi %[[cmpi3]], %[[cmpi0]]
    // CHECK: %[[s2:.*]] = arith.select %[[cond2]], %[[sz2]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c0]], %[[c2]], %[[c0]]], {{.*}}, 4, %[[s2]] {bypassL1}

    // CHECK: %[[cmpi4:.*]] = arith.cmpi slt, %[[c1]], %[[sz0]]
    // CHECK: %[[cond3:.*]] = arith.andi %[[cmpi1]], %[[cmpi4]]
    // CHECK: %[[s3:.*]] = arith.select %[[cond3]], %[[sz2]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c1]], %[[c0]], %[[c0]]], {{.*}}, 4, %[[s3]] {bypassL1}

    // CHECK: %[[cond4:.*]] = arith.andi %[[cmpi2]], %[[cmpi4]]
    // CHECK: %[[s4:.*]] = arith.select %[[cond4]], %[[sz2]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c1]], %[[c1]], %[[c0]]], {{.*}}, 4, %[[s4]] {bypassL1}

    // CHECK: %[[cond5:.*]] = arith.andi %[[cmpi3]], %[[cmpi4]]
    // CHECK: %[[s5:.*]] = arith.select %[[cond5]], %[[sz2]], %[[c0]]
    // CHECK: nvgpu.device_async_copy %[[a]][%[[c1]], %[[c2]], %[[c0]]], {{.*}}, 4, %[[s5]] {bypassL1}
    %mask = vector.create_mask %sz0, %sz1, %sz2 : vector<2x3x4xi1>
    %1 = vector.transfer_read %a[%c0, %c0, %c0], %cst_0, %mask {in_bounds = [true, true, true]} : memref<1024x1024x1024xf32>, vector<2x3x4xf32>
    vector.transfer_write %1, %0[%c0, %c0, %c0] {in_bounds = [true, true, true]} : vector<2x3x4xf32>, memref<4x32x16xf32, #gpu.address_space<workgroup>>

    return
  }

  module attributes {transform.with_named_sequence} {
    transform.named_sequence @__transform_main(%variant_op: !transform.any_op {transform.readonly}) {
      %top_level_func = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.apply_patterns to %top_level_func {
        transform.apply_patterns.vector.transfer_to_scf max_transfer_rank = 1 full_unroll = true
      } : !transform.any_op
      transform.nvgpu.create_async_groups %top_level_func {bypass_l1} : (!transform.any_op) -> (!transform.any_op)
      %top_level_func_2 = transform.structured.match ops{["func.func"]} in %variant_op : (!transform.any_op) -> !transform.any_op
      transform.apply_cse to %top_level_func_2 : !transform.any_op
      transform.yield
    }
  }
}