66aa9a2517
The scf.forall.in_parallel terminator operation has a nested graph region with the NoTerminator trait. Such regions are not supported by the default implementations. Therefore, this commit adds a specialized implementation for this operation which only covers the case where the nested region is empty. This is because after bufferization, ops like tensor.parallel_insert_slice were already converted to memref operations residing int the scf.forall only and the nested region of scf.forall.in_parallel ends up empty.
25 lines
905 B
MLIR
25 lines
905 B
MLIR
// RUN: mlir-opt -verify-diagnostics -ownership-based-buffer-deallocation \
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// RUN: -buffer-deallocation-simplification -split-input-file %s | FileCheck %s
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func.func @parallel_insert_slice(%arg0: index) {
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%c0 = arith.constant 0 : index
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%alloc = memref.alloc() : memref<2xf32>
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scf.forall (%arg1) in (%arg0) {
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%alloc0 = memref.alloc() : memref<2xf32>
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%0 = memref.load %alloc[%c0] : memref<2xf32>
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linalg.fill ins(%0 : f32) outs(%alloc0 : memref<2xf32>)
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}
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return
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}
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// CHECK-LABEL: func @parallel_insert_slice
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// CHECK-SAME: (%arg0: index)
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// CHECK: [[ALLOC0:%.+]] = memref.alloc(
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// CHECK: scf.forall
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// CHECK: [[ALLOC1:%.+]] = memref.alloc(
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// CHECK: bufferization.dealloc ([[ALLOC1]] : memref<2xf32>) if (%true
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// CHECK-NOT: retain
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// CHECK: }
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// CHECK: bufferization.dealloc ([[ALLOC0]] : memref<2xf32>) if (%true
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// CHECK-NOT: retain
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