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// RUN: mlir-opt -convert-affine-for-to-gpu="gpu-block-dims=1 gpu-thread-dims=1" %s | FileCheck --check-prefix=CHECK-11 %s
// RUN: mlir-opt -convert-affine-for-to-gpu="gpu-block-dims=2 gpu-thread-dims=2" %s | FileCheck --check-prefix=CHECK-22 %s
// CHECK-11-LABEL: @step_1
// CHECK-22-LABEL: @step_1
func @step_1(%A : memref<?x?x?x?xf32>, %B : memref<?x?x?x?xf32>) {
// Bounds of the loop, its range and step.
// CHECK-11-NEXT: %{{.*}} = constant 0 : index
// CHECK-11-NEXT: %{{.*}} = constant 42 : index
// CHECK-11-NEXT: %{{.*}} = subi %{{.*}}, %{{.*}} : index
// CHECK-11-NEXT: %{{.*}} = constant 1 : index
//
// CHECK-22-NEXT: %{{.*}} = constant 0 : index
// CHECK-22-NEXT: %{{.*}} = constant 42 : index
// CHECK-22-NEXT: %{{.*}} = subi %{{.*}}, %{{.*}} : index
// CHECK-22-NEXT: %{{.*}} = constant 1 : index
affine.for %i = 0 to 42 {
// Bounds of the loop, its range and step.
// CHECK-11-NEXT: %{{.*}} = constant 0 : index
// CHECK-11-NEXT: %{{.*}} = constant 10 : index
// CHECK-11-NEXT: %{{.*}} = subi %{{.*}}, %{{.*}} : index
// CHECK-11-NEXT: %{{.*}} = constant 1 : index
//
// CHECK-22-NEXT: %{{.*}} = constant 0 : index
// CHECK-22-NEXT: %{{.*}} = constant 10 : index
// CHECK-22-NEXT: %{{.*}} = subi %{{.*}}, %{{.*}} : index
// CHECK-22-NEXT: %{{.*}} = constant 1 : index
affine.for %j = 0 to 10 {
// CHECK-11: gpu.launch
// CHECK-11-SAME: blocks
// CHECK-11-SAME: threads
// Remapping of the loop induction variables.
// CHECK-11: %[[i:.*]] = addi %{{.*}}, %{{.*}} : index
// CHECK-11-NEXT: %[[j:.*]] = addi %{{.*}}, %{{.*}} : index
// This loop is not converted if mapping to 1, 1 dimensions.
// CHECK-11-NEXT: affine.for %[[ii:.*]] = 2 to 16
//
// Bounds of the loop, its range and step.
// CHECK-22-NEXT: %{{.*}} = constant 2 : index
// CHECK-22-NEXT: %{{.*}} = constant 16 : index
// CHECK-22-NEXT: %{{.*}} = subi %{{.*}}, %{{.*}} : index
// CHECK-22-NEXT: %{{.*}} = constant 1 : index
affine.for %ii = 2 to 16 {
// This loop is not converted if mapping to 1, 1 dimensions.
// CHECK-11-NEXT: affine.for %[[jj:.*]] = 5 to 17
//
// Bounds of the loop, its range and step.
// CHECK-22-NEXT: %{{.*}} = constant 5 : index
// CHECK-22-NEXT: %{{.*}} = constant 17 : index
// CHECK-22-NEXT: %{{.*}} = subi %{{.*}}, %{{.*}} : index
// CHECK-22-NEXT: %{{.*}} = constant 1 : index
affine.for %jj = 5 to 17 {
// CHECK-22: gpu.launch
// CHECK-22-SAME: blocks
// CHECK-22-SAME: threads
// Remapping of the loop induction variables in the last mapped scf.
// CHECK-22: %[[i:.*]] = addi %{{.*}}, %{{.*}} : index
// CHECK-22-NEXT: %[[j:.*]] = addi %{{.*}}, %{{.*}} : index
// CHECK-22-NEXT: %[[ii:.*]] = addi %{{.*}}, %{{.*}} : index
// CHECK-22-NEXT: %[[jj:.*]] = addi %{{.*}}, %{{.*}} : index
// Using remapped values instead of loop iterators.
// CHECK-11: {{.*}} = memref.load %{{.*}}[%[[i]], %[[j]], %[[ii]], %[[jj]]] : memref<?x?x?x?xf32>
// CHECK-22: {{.*}} = memref.load %{{.*}}[%[[i]], %[[j]], %[[ii]], %[[jj]]] : memref<?x?x?x?xf32>
%0 = memref.load %A[%i, %j, %ii, %jj] : memref<?x?x?x?xf32>
// CHECK-11-NEXT: memref.store {{.*}}, %{{.*}}[%[[i]], %[[j]], %[[ii]], %[[jj]]] : memref<?x?x?x?xf32>
// CHECK-22-NEXT: memref.store {{.*}}, %{{.*}}[%[[i]], %[[j]], %[[ii]], %[[jj]]] : memref<?x?x?x?xf32>
memref.store %0, %B[%i, %j, %ii, %jj] : memref<?x?x?x?xf32>
// CHECK-11: gpu.terminator
// CHECK-22: gpu.terminator
}
}
}
}
return
}
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