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// RUN: mlir-opt %s -allow-unregistered-dialect -pass-pipeline="builtin.module(func.func(linalg-detensorize))" | FileCheck %s
#map0 = affine_map<() -> ()>
#attrs = {
indexing_maps = [#map0, #map0, #map0],
iterator_types = []
}
func.func @main() -> () attributes {} {
%c0 = arith.constant 0 : i32
%0 = tensor.from_elements %c0 : tensor<1xi32>
%reshaped0 = tensor.collapse_shape %0 [] : tensor<1xi32> into tensor<i32>
%c10 = arith.constant 10 : i32
%1 = tensor.from_elements %c10 : tensor<1xi32>
%reshaped1 = tensor.collapse_shape %1 [] : tensor<1xi32> into tensor<i32>
cf.br ^bb1(%reshaped0 : tensor<i32>)
^bb1(%2: tensor<i32>): // 2 preds: ^bb0, ^bb2
%3 = tensor.empty() : tensor<i1>
%4 = linalg.generic #attrs
ins(%2, %reshaped1 : tensor<i32>, tensor<i32>)
outs(%3 : tensor<i1>) {
^bb0(%arg0: i32, %arg1: i32, %arg2: i1):
%8 = arith.cmpi slt, %arg0, %arg1 : i32
linalg.yield %8 : i1
} -> tensor<i1>
%5 = tensor.extract %4[] : tensor<i1>
cf.cond_br %5, ^bb2(%2 : tensor<i32>), ^bb3
^bb2(%6: tensor<i32>): // pred: ^bb1
%7 = tensor.empty() : tensor<i32>
%8 = linalg.generic #attrs
ins(%6, %6 : tensor<i32>, tensor<i32>)
outs(%7 : tensor<i32>) {
^bb0(%arg0: i32, %arg1: i32, %arg2: i32):
%9 = arith.addi %arg0, %arg1 : i32
linalg.yield %9 : i32
} -> tensor<i32>
cf.br ^bb1(%8 : tensor<i32>)
^bb3: // pred: ^bb1
return
}
// CHECK-LABEL: func @main
// CHECK-DAG: arith.constant 0 : i32
// CHECK-DAG: arith.constant 10
// CHECK-NEXT: cf.br ^[[bb1:.*]](%{{.*}} : i32)
// CHECK-NEXT: ^[[bb1]](%{{.*}}: i32)
// CHECK-NEXT: %{{.*}} = arith.cmpi slt, %{{.*}}, %{{.*}}
// CHECK-NEXT: cf.cond_br %{{.*}}, ^[[bb2:.*]](%{{.*}} : i32), ^[[bb3:.*]]
// CHECK-NEXT: ^[[bb2]](%{{.*}}: i32)
// CHECK-NEXT: %{{.*}} = arith.addi %{{.*}}, %{{.*}}
// CHECK-NEXT: cf.br ^[[bb1]](%{{.*}} : i32)
// CHECK-NEXT: ^[[bb3]]:
// CHECK-NEXT: return
// CHECK-NEXT: }
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