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TheRock/compiler/amd-llvm/mlir/test/Dialect/SCF/forall-to-for.mlir
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derek.holloway 7502bf64a4
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82 lines
2.7 KiB
MLIR

// RUN: mlir-opt %s -pass-pipeline='builtin.module(func.func(scf-forall-to-for))' -split-input-file | FileCheck %s
func.func private @callee(%i: index, %j: index)
// CHECK-LABEL: @two_iters
// CHECK-SAME: %[[UB1:.+]]: index, %[[UB2:.+]]: index
func.func @two_iters(%ub1: index, %ub2: index) {
scf.forall (%i, %j) in (%ub1, %ub2) {
func.call @callee(%i, %j) : (index, index) -> ()
}
// CHECK: scf.for %[[IV1:.+]] = %{{.*}} to %[[UB1]]
// CHECK: scf.for %[[IV2:.+]] = %{{.*}} to %[[UB2]]
// CHECK: func.call @callee(%[[IV1]], %[[IV2]])
return
}
// -----
func.func private @callee(%i: index, %j: index)
// CHECK-LABEL: @repeated
// CHECK-SAME: %[[UB1:.+]]: index, %[[UB2:.+]]: index
func.func @repeated(%ub1: index, %ub2: index) {
scf.forall (%i, %j) in (%ub1, %ub2) {
func.call @callee(%i, %j) : (index, index) -> ()
}
// CHECK: scf.for %[[IV1:.+]] = %{{.*}} to %[[UB1]]
// CHECK: scf.for %[[IV2:.+]] = %{{.*}} to %[[UB2]]
// CHECK: func.call @callee(%[[IV1]], %[[IV2]])
scf.forall (%i, %j) in (%ub1, %ub2) {
func.call @callee(%i, %j) : (index, index) -> ()
}
// CHECK: scf.for %[[IV1:.+]] = %{{.*}} to %[[UB1]]
// CHECK: scf.for %[[IV2:.+]] = %{{.*}} to %[[UB2]]
// CHECK: func.call @callee(%[[IV1]], %[[IV2]])
return
}
// -----
func.func private @callee(%i: index, %j: index, %k: index, %l: index)
// CHECK-LABEL: @nested
// CHECK-SAME: %[[UB1:.+]]: index, %[[UB2:.+]]: index, %[[UB3:.+]]: index, %[[UB4:.+]]: index
func.func @nested(%ub1: index, %ub2: index, %ub3: index, %ub4: index) {
// CHECK: scf.for %[[IV1:.+]] = %{{.*}} to %[[UB1]]
// CHECK: scf.for %[[IV2:.+]] = %{{.*}} to %[[UB2]]
// CHECK: scf.for %[[IV3:.+]] = %{{.*}} to %[[UB3]]
// CHECK: scf.for %[[IV4:.+]] = %{{.*}} to %[[UB4]]
// CHECK: func.call @callee(%[[IV1]], %[[IV2]], %[[IV3]], %[[IV4]])
scf.forall (%i, %j) in (%ub1, %ub2) {
scf.forall (%k, %l) in (%ub3, %ub4) {
func.call @callee(%i, %j, %k, %l) : (index, index, index, index) -> ()
}
}
return
}
// -----
// The pass should bail out cleanly and not crash here. `scf.forall` with outputs
// is not supported, but we should still handle the `forall` op with no results
// present in the same function.
func.func private @callee(%i: index)
// CHECK-LABEL: @shared_outs
func.func @shared_outs(%arg0: tensor<1xf32>, %ub: index) -> tensor<1xf32> {
// CHECK: %{{.*}} = scf.forall
%0 = scf.forall (%i) in (1) shared_outs(%out = %arg0) -> (tensor<1xf32>) {
scf.forall.in_parallel {
tensor.parallel_insert_slice %out into %out[%i] [1] [1] : tensor<1xf32> into tensor<1xf32>
}
}
// CHECK: scf.for
scf.forall (%i) in (%ub) {
func.call @callee(%i) : (index) -> ()
}
return %0 : tensor<1xf32>
}