forked from OSchip/llvm-project
53 lines
2.3 KiB
MLIR
53 lines
2.3 KiB
MLIR
// RUN: mlir-opt -allow-unregistered-dialect -test-mapping-to-processing-elements %s | FileCheck %s
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// CHECK: #[[mul_map:.+]] = affine_map<()[s0, s1] -> (s0 * s1)>
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// CHECK: #[[add_map:.+]] = affine_map<()[s0, s1] -> (s0 + s1)>
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// CHECK: func @map1d
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// CHECK-SAME: (%[[lb:.*]]: index, %[[ub:.*]]: index, %[[step:.*]]: index)
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func @map1d(%lb: index, %ub: index, %step: index) {
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// CHECK: %[[threads:.*]]:2 = "new_processor_id_and_range"() : () -> (index, index)
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%0:2 = "new_processor_id_and_range"() : () -> (index, index)
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// CHECK: %[[thread_offset:.+]] = affine.apply #[[mul_map]]()[%[[threads]]#0, %[[step]]]
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// CHECK: %[[new_lb:.+]] = affine.apply #[[add_map]]()[%[[thread_offset]], %[[lb]]]
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// CHECK: %[[new_step:.+]] = affine.apply #[[mul_map]]()[%[[threads]]#1, %[[step]]]
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// CHECK: scf.for %{{.*}} = %[[new_lb]] to %[[ub]] step %[[new_step]] {
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scf.for %i = %lb to %ub step %step {}
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return
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}
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// CHECK: func @map2d
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// CHECK-SAME: (%[[lb:.*]]: index, %[[ub:.*]]: index, %[[step:.*]]: index)
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func @map2d(%lb : index, %ub : index, %step : index) {
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// CHECK: %[[blocks:.*]]:2 = "new_processor_id_and_range"() : () -> (index, index)
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%0:2 = "new_processor_id_and_range"() : () -> (index, index)
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// CHECK: %[[threads:.*]]:2 = "new_processor_id_and_range"() : () -> (index, index)
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%1:2 = "new_processor_id_and_range"() : () -> (index, index)
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// blockIdx.x * blockDim.x
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// CHECK: %[[bidxXbdimx:.+]] = affine.apply #[[mul_map]]()[%[[blocks]]#0, %[[threads]]#1]
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//
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// threadIdx.x + blockIdx.x * blockDim.x
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// CHECK: %[[tidxpbidxXbdimx:.+]] = affine.apply #[[add_map]]()[%[[bidxXbdimx]], %[[threads]]#0]
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//
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// thread_offset = step * (threadIdx.x + blockIdx.x * blockDim.x)
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// CHECK: %[[thread_offset:.+]] = affine.apply #[[mul_map]]()[%[[tidxpbidxXbdimx]], %[[step]]]
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//
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// new_lb = lb + thread_offset
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// CHECK: %[[new_lb:.+]] = affine.apply #[[add_map]]()[%[[thread_offset]], %[[lb]]]
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//
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// stepXgdimx = step * gridDim.x
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// CHECK: %[[stepXgdimx:.+]] = affine.apply #[[mul_map]]()[%[[blocks]]#1, %[[step]]]
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//
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// new_step = step * gridDim.x * blockDim.x
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// CHECK: %[[new_step:.+]] = affine.apply #[[mul_map]]()[%[[threads]]#1, %[[stepXgdimx]]]
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//
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// CHECK: scf.for %{{.*}} = %[[new_lb]] to %[[ub]] step %[[new_step]] {
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scf.for %i = %lb to %ub step %step {}
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return
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}
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