93fd30bac3
This revision allows representing a reduction at the level of linalg on tensors for named ops. When a structured op has a reduction and returns tensor(s), new conventions are added and documented.
As an illustration, the syntax for a `linalg.matmul` writing into a buffer is:
```
linalg.matmul ins(%a, %b : memref<?x?xf32>, tensor<?x?xf32>)
outs(%c : memref<?x?xf32>)
```
, whereas the syntax for a `linalg.matmul` returning a new tensor is:
```
%d = linalg.matmul ins(%a, %b : tensor<?x?xf32>, memref<?x?xf32>)
init(%c : memref<?x?xf32>)
-> tensor<?x?xf32>
```
Other parts of linalg will be extended accordingly to allow mixed buffer/tensor semantics in the presence of reductions.
36 lines
1.5 KiB
MLIR
36 lines
1.5 KiB
MLIR
// RUN: mlir-opt -slice-analysis-test %s | FileCheck %s
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func @slicing_linalg_op(%arg0 : index, %arg1 : index, %arg2 : index) {
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%a = alloc(%arg0, %arg2) : memref<?x?xf32>
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%b = alloc(%arg2, %arg1) : memref<?x?xf32>
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%c = alloc(%arg0, %arg1) : memref<?x?xf32>
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%d = alloc(%arg0, %arg1) : memref<?x?xf32>
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linalg.matmul ins(%a, %b : memref<?x?xf32>, memref<?x?xf32>)
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outs(%c : memref<?x?xf32>)
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linalg.matmul ins(%a, %b : memref<?x?xf32>, memref<?x?xf32>)
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outs(%d : memref<?x?xf32>)
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dealloc %c : memref<?x?xf32>
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dealloc %b : memref<?x?xf32>
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dealloc %a : memref<?x?xf32>
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dealloc %d : memref<?x?xf32>
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return
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}
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// CHECK-LABEL: func @slicing_linalg_op__backward_slice__0
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// CHECK-SAME: %[[ARG0:[a-zA-Z0-9_]+]]: index
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// CHECK-SAME: %[[ARG1:[a-zA-Z0-9_]+]]: index
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// CHECK-SAME: %[[ARG2:[a-zA-Z0-9_]+]]: index
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// CHECK-DAG: %[[A:.+]] = alloc(%[[ARG0]], %[[ARG2]]) : memref<?x?xf32>
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// CHECK-DAG: %[[B:.+]] = alloc(%[[ARG2]], %[[ARG1]]) : memref<?x?xf32>
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// CHECK-DAG: %[[C:.+]] = alloc(%[[ARG0]], %[[ARG1]]) : memref<?x?xf32>
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// CHECK: return
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// CHECK-LABEL: func @slicing_linalg_op__backward_slice__1
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// CHECK-SAME: %[[ARG0:[a-zA-Z0-9_]+]]: index
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// CHECK-SAME: %[[ARG1:[a-zA-Z0-9_]+]]: index
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// CHECK-SAME: %[[ARG2:[a-zA-Z0-9_]+]]: index
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// CHECK-DAG: %[[A:.+]] = alloc(%[[ARG0]], %[[ARG2]]) : memref<?x?xf32>
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// CHECK-DAG: %[[B:.+]] = alloc(%[[ARG2]], %[[ARG1]]) : memref<?x?xf32>
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// CHECK-DAG: %[[C:.+]] = alloc(%[[ARG0]], %[[ARG1]]) : memref<?x?xf32>
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// CHECK: return
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