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llvm-project/mlir/test/Conversion/VectorToLoops/vector-to-loops.mlir

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MLIR
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// RUN: mlir-opt %s -test-convert-vector-to-loops | FileCheck %s
// CHECK: #[[ADD:map[0-9]+]] = affine_map<(d0, d1) -> (d0 + d1)>
// CHECK: #[[SUB:map[0-9]+]] = affine_map<()[s0] -> (s0 - 1)>
// CHECK-LABEL: func @materialize_read_1d() {
func @materialize_read_1d() {
%f0 = constant 0.0: f32
%A = alloc () : memref<7x42xf32>
affine.for %i0 = 0 to 7 step 4 {
affine.for %i1 = 0 to 42 step 4 {
%f1 = vector.transfer_read %A[%i0, %i1], %f0 {permutation_map = affine_map<(d0, d1) -> (d0)>} : memref<7x42xf32>, vector<4xf32>
%ip1 = affine.apply affine_map<(d0) -> (d0 + 1)> (%i1)
%f2 = vector.transfer_read %A[%i0, %ip1], %f0 {permutation_map = affine_map<(d0, d1) -> (d0)>} : memref<7x42xf32>, vector<4xf32>
%ip2 = affine.apply affine_map<(d0) -> (d0 + 2)> (%i1)
%f3 = vector.transfer_read %A[%i0, %ip2], %f0 {permutation_map = affine_map<(d0, d1) -> (d0)>} : memref<7x42xf32>, vector<4xf32>
%ip3 = affine.apply affine_map<(d0) -> (d0 + 3)> (%i1)
%f4 = vector.transfer_read %A[%i0, %ip3], %f0 {permutation_map = affine_map<(d0, d1) -> (d0)>} : memref<7x42xf32>, vector<4xf32>
// Both accesses in the load must be clipped otherwise %i1 + 2 and %i1 + 3 will go out of bounds.
// CHECK: {{.*}} = select
// CHECK: %[[FILTERED1:.*]] = select
// CHECK: {{.*}} = select
// CHECK: %[[FILTERED2:.*]] = select
// CHECK-NEXT: %{{.*}} = load {{.*}}[%[[FILTERED1]], %[[FILTERED2]]] : memref<7x42xf32>
}
}
return
}
// CHECK-LABEL: func @materialize_read_1d_partially_specialized
func @materialize_read_1d_partially_specialized(%dyn1 : index, %dyn2 : index, %dyn4 : index) {
%f0 = constant 0.0: f32
%A = alloc (%dyn1, %dyn2, %dyn4) : memref<7x?x?x42x?xf32>
affine.for %i0 = 0 to 7 {
affine.for %i1 = 0 to %dyn1 {
affine.for %i2 = 0 to %dyn2 {
affine.for %i3 = 0 to 42 step 2 {
affine.for %i4 = 0 to %dyn4 {
%f1 = vector.transfer_read %A[%i0, %i1, %i2, %i3, %i4], %f0 {permutation_map = affine_map<(d0, d1, d2, d3, d4) -> (d3)>} : memref<7x?x?x42x?xf32>, vector<4xf32>
%i3p1 = affine.apply affine_map<(d0) -> (d0 + 1)> (%i3)
%f2 = vector.transfer_read %A[%i0, %i1, %i2, %i3p1, %i4], %f0 {permutation_map = affine_map<(d0, d1, d2, d3, d4) -> (d3)>} : memref<7x?x?x42x?xf32>, vector<4xf32>
}
}
}
}
}
// CHECK: %[[tensor:[0-9]+]] = alloc
// CHECK-NOT: {{.*}} dim %[[tensor]], 0
// CHECK-NOT: {{.*}} dim %[[tensor]], 3
return
}
// CHECK-LABEL: func @materialize_read(%{{.*}}: index, %{{.*}}: index, %{{.*}}: index, %{{.*}}: index) {
func @materialize_read(%M: index, %N: index, %O: index, %P: index) {
%f0 = constant 0.0: f32
// CHECK-DAG: %[[C0:.*]] = constant 0 : index
// CHECK-DAG: %[[C1:.*]] = constant 1 : index
// CHECK-DAG: %[[C3:.*]] = constant 3 : index
// CHECK-DAG: %[[C4:.*]] = constant 4 : index
// CHECK-DAG: %[[C5:.*]] = constant 5 : index
// CHECK: %{{.*}} = alloc(%{{.*}}, %{{.*}}, %{{.*}}, %{{.*}}) : memref<?x?x?x?xf32>
// CHECK-NEXT: affine.for %[[I0:.*]] = 0 to %{{.*}} step 3 {
// CHECK-NEXT: affine.for %[[I1:.*]] = 0 to %{{.*}} {
// CHECK-NEXT: affine.for %[[I2:.*]] = 0 to %{{.*}} {
// CHECK-NEXT: affine.for %[[I3:.*]] = 0 to %{{.*}} step 5 {
// CHECK: %[[ALLOC:.*]] = alloc() : memref<5x4x3xf32>
// CHECK-NEXT: %[[VECTOR_VIEW:.*]] = vector.type_cast %[[ALLOC]] : memref<5x4x3xf32>
// CHECK-NEXT: loop.for %[[I4:.*]] = %[[C0]] to %[[C3]] step %[[C1]] {
// CHECK-NEXT: loop.for %[[I5:.*]] = %[[C0]] to %[[C4]] step %[[C1]] {
// CHECK-NEXT: loop.for %[[I6:.*]] = %[[C0]] to %[[C5]] step %[[C1]] {
// CHECK-NEXT: {{.*}} = affine.apply #[[ADD]](%[[I0]], %[[I4]])
// CHECK-NEXT: {{.*}} = affine.apply #[[SUB]]()[%{{.*}}]
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}} : index
// CHECK-NEXT: {{.*}} = select
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, %[[C0]] : index
// CHECK-NEXT: %[[L0:.*]] = select
//
// CHECK-NEXT: {{.*}} = affine.apply #[[SUB]]()[%{{.*}}]
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}} : index
// CHECK-NEXT: {{.*}} = select
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, %[[C0]] : index
// CHECK-NEXT: %[[L1:.*]] = select
//
// CHECK-NEXT: {{.*}} = affine.apply #[[SUB]]()[%{{.*}}]
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}} : index
// CHECK-NEXT: {{.*}} = select
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, %[[C0]] : index
// CHECK-NEXT: %[[L2:.*]] = select
//
// CHECK-NEXT: {{.*}} = affine.apply #[[ADD]](%[[I3]], %[[I6]])
// CHECK-NEXT: {{.*}} = affine.apply #[[SUB]]()[%{{.*}}]
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}} : index
// CHECK-NEXT: {{.*}} = select
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, %[[C0]] : index
// CHECK-NEXT: %[[L3:.*]] = select
//
// CHECK-NEXT: {{.*}} = load %{{.*}}[%[[L0]], %[[L1]], %[[L2]], %[[L3]]] : memref<?x?x?x?xf32>
// CHECK-NEXT: store {{.*}}, %[[ALLOC]][%[[I6]], %[[I5]], %[[I4]]] : memref<5x4x3xf32>
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK: {{.*}} = load %[[VECTOR_VIEW]][] : memref<vector<5x4x3xf32>>
// CHECK-NEXT: dealloc %[[ALLOC]] : memref<5x4x3xf32>
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: return
// CHECK-NEXT:}
// Check that I0 + I4 (of size 3) read from first index load(L0, ...) and write into last index store(..., I4)
// Check that I3 + I6 (of size 5) read from last index load(..., L3) and write into first index store(I6, ...)
// Other dimensions are just accessed with I1, I2 resp.
%A = alloc (%M, %N, %O, %P) : memref<?x?x?x?xf32, 0>
affine.for %i0 = 0 to %M step 3 {
affine.for %i1 = 0 to %N {
affine.for %i2 = 0 to %O {
affine.for %i3 = 0 to %P step 5 {
%f = vector.transfer_read %A[%i0, %i1, %i2, %i3], %f0 {permutation_map = affine_map<(d0, d1, d2, d3) -> (d3, 0, d0)>} : memref<?x?x?x?xf32>, vector<5x4x3xf32>
}
}
}
}
return
}
// CHECK-LABEL:func @materialize_write(%{{.*}}: index, %{{.*}}: index, %{{.*}}: index, %{{.*}}: index) {
func @materialize_write(%M: index, %N: index, %O: index, %P: index) {
// CHECK-DAG: %{{.*}} = constant dense<1.000000e+00> : vector<5x4x3xf32>
// CHECK-DAG: %[[C0:.*]] = constant 0 : index
// CHECK-DAG: %[[C1:.*]] = constant 1 : index
// CHECK-DAG: %[[C3:.*]] = constant 3 : index
// CHECK-DAG: %[[C4:.*]] = constant 4 : index
// CHECK-DAG: %[[C5:.*]] = constant 5 : index
// CHECK: %{{.*}} = alloc(%{{.*}}, %{{.*}}, %{{.*}}, %{{.*}}) : memref<?x?x?x?xf32>
// CHECK-NEXT: affine.for %[[I0:.*]] = 0 to %{{.*}} step 3 {
// CHECK-NEXT: affine.for %[[I1:.*]] = 0 to %{{.*}} step 4 {
// CHECK-NEXT: affine.for %[[I2:.*]] = 0 to %{{.*}} {
// CHECK-NEXT: affine.for %[[I3:.*]] = 0 to %{{.*}} step 5 {
// CHECK: %[[ALLOC:.*]] = alloc() : memref<5x4x3xf32>
// CHECK-NEXT: %[[VECTOR_VIEW:.*]] = vector.type_cast {{.*}} : memref<5x4x3xf32>
// CHECK: store %{{.*}}, {{.*}} : memref<vector<5x4x3xf32>>
// CHECK-NEXT: loop.for %[[I4:.*]] = %[[C0]] to %[[C3]] step %[[C1]] {
// CHECK-NEXT: loop.for %[[I5:.*]] = %[[C0]] to %[[C4]] step %[[C1]] {
// CHECK-NEXT: loop.for %[[I6:.*]] = %[[C0]] to %[[C5]] step %[[C1]] {
// CHECK-NEXT: {{.*}} = affine.apply #[[ADD]](%[[I0]], %[[I4]])
// CHECK-NEXT: {{.*}} = affine.apply #[[SUB]]()[%{{.*}}]
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, {{.*}} : index
// CHECK-NEXT: {{.*}} = select {{.*}}, {{.*}}, {{.*}} : index
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, %[[C0]] : index
// CHECK-NEXT: %[[S0:.*]] = select {{.*}}, %[[C0]], {{.*}} : index
//
// CHECK-NEXT: {{.*}} = affine.apply #[[ADD]](%[[I1]], %[[I5]])
// CHECK-NEXT: {{.*}} = affine.apply #[[SUB]]()[%{{.*}}]
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, {{.*}} : index
// CHECK-NEXT: {{.*}} = select {{.*}}, {{.*}}, {{.*}} : index
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, %[[C0]] : index
// CHECK-NEXT: %[[S1:.*]] = select {{.*}}, %[[C0]], {{.*}} : index
//
// CHECK-NEXT: {{.*}} = affine.apply #[[SUB]]()[%{{.*}}]
// CHECK-NEXT: {{.*}} = cmpi "slt", %[[I2]], %{{.*}} : index
// CHECK-NEXT: {{.*}} = select {{.*}}, %[[I2]], {{.*}} : index
// CHECK-NEXT: {{.*}} = cmpi "slt", %[[I2]], %[[C0]] : index
// CHECK-NEXT: %[[S2:.*]] = select {{.*}}, %[[C0]], {{.*}} : index
//
// CHECK-NEXT: {{.*}} = affine.apply #[[ADD]](%[[I3]], %[[I6]])
// CHECK-NEXT: {{.*}} = affine.apply #[[SUB]]()[%{{.*}}]
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, {{.*}} : index
// CHECK-NEXT: {{.*}} = select {{.*}}, {{.*}}, {{.*}} : index
// CHECK-NEXT: {{.*}} = cmpi "slt", {{.*}}, %[[C0]] : index
// CHECK-NEXT: %[[S3:.*]] = select {{.*}}, %[[C0]], {{.*}} : index
//
// CHECK-NEXT: {{.*}} = load {{.*}}[%[[I6]], %[[I5]], %[[I4]]] : memref<5x4x3xf32>
// CHECK: store {{.*}}, {{.*}}[%[[S0]], %[[S1]], %[[S2]], %[[S3]]] : memref<?x?x?x?xf32>
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: dealloc {{.*}} : memref<5x4x3xf32>
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: }
// CHECK-NEXT: return
// CHECK-NEXT:}
//
// Check that I0 + I4 (of size 3) read from last index load(..., I4) and write into first index store(S0, ...)
// Check that I1 + I5 (of size 4) read from second index load(..., I5, ...) and write into second index store(..., S1, ...)
// Check that I3 + I6 (of size 5) read from first index load(I6, ...) and write into last index store(..., S3)
// Other dimension is just accessed with I2.
%A = alloc (%M, %N, %O, %P) : memref<?x?x?x?xf32, 0>
%f1 = constant dense<1.000000e+00> : vector<5x4x3xf32>
affine.for %i0 = 0 to %M step 3 {
affine.for %i1 = 0 to %N step 4 {
affine.for %i2 = 0 to %O {
affine.for %i3 = 0 to %P step 5 {
vector.transfer_write %f1, %A[%i0, %i1, %i2, %i3] {permutation_map = affine_map<(d0, d1, d2, d3) -> (d3, d1, d0)>} : vector<5x4x3xf32>, memref<?x?x?x?xf32>
}
}
}
}
return
}
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