| // RUN: mlir-opt -allow-unregistered-dialect -pass-pipeline='builtin.module(func.func(test-scf-parallel-loop-collapsing{collapsed-indices-0=0,1}, canonicalize))' --mlir-print-local-scope %s | FileCheck %s | |
| func.func @collapse_to_single() { | |
| %c0 = arith.constant 3 : index | |
| %c1 = arith.constant 7 : index | |
| %c2 = arith.constant 11 : index | |
| %c3 = arith.constant 29 : index | |
| %c4 = arith.constant 3 : index | |
| %c5 = arith.constant 4 : index | |
| scf.parallel (%i0, %i1) = (%c0, %c1) to (%c2, %c3) step (%c4, %c5) { | |
| %result = "magic.op"(%i0, %i1): (index, index) -> index | |
| } | |
| return | |
| } | |
| // CHECK: func @collapse_to_single() { | |
| // CHECK-DAG: %[[C6:.*]] = arith.constant 6 : index | |
| // CHECK-DAG: %[[C0:.*]] = arith.constant 0 : index | |
| // CHECK-DAG: %[[C1:.*]] = arith.constant 1 : index | |
| // CHECK-DAG: %[[C18:.*]] = arith.constant 18 : index | |
| // CHECK: scf.parallel (%[[NEW_I:.*]]) = (%[[C0]]) to (%[[C18]]) step (%[[C1]]) { | |
| // CHECK: %[[I0_COUNT:.*]] = arith.remsi %[[NEW_I]], %[[C6]] : index | |
| // CHECK: %[[I1_COUNT:.*]] = arith.divsi %[[NEW_I]], %[[C6]] : index | |
| // CHECK: %[[I1:.*]] = affine.apply affine_map<(d0) -> (d0 * 4 + 7)>(%[[I0_COUNT]]) | |
| // CHECK: %[[I0:.*]] = affine.apply affine_map<(d0) -> (d0 * 3 + 3)>(%[[I1_COUNT]]) | |
| // CHECK: "magic.op"(%[[I0]], %[[I1]]) : (index, index) -> index | |
| // CHECK: scf.reduce | |
| // CHECK-NEXT: } | |
| // CHECK-NEXT: return |