parallel-loop-collapsing.mlir
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// RUN: mlir-opt -allow-unregistered-dialect %s -pass-pipeline='func(parallel-loop-collapsing{collapsed-indices-0=0,3 collapsed-indices-1=1,4 collapsed-indices-2=2}, canonicalize)' | FileCheck %s
func @parallel_many_dims() {
%c0 = constant 0 : index
%c1 = constant 1 : index
%c2 = constant 2 : index
%c3 = constant 3 : index
%c4 = constant 4 : index
%c5 = constant 5 : index
%c6 = constant 6 : index
%c7 = constant 7 : index
%c8 = constant 8 : index
%c9 = constant 9 : index
%c10 = constant 10 : index
%c11 = constant 11 : index
%c12 = constant 12 : index
%c13 = constant 13 : index
%c14 = constant 14 : index
%c15 = constant 15 : index
%c26 = constant 26 : index
scf.parallel (%i0, %i1, %i2, %i3, %i4) = (%c0, %c3, %c6, %c9, %c12) to (%c2, %c5, %c8, %c11, %c14)
step (%c1, %c4, %c7, %c10, %c13) {
%result = "magic.op"(%i0, %i1, %i2, %i3, %i4): (index, index, index, index, index) -> index
}
return
}
// CHECK-LABEL: func @parallel_many_dims() {
// CHECK: [[C6:%.*]] = constant 6 : index
// CHECK: [[C9:%.*]] = constant 9 : index
// CHECK: [[C10:%.*]] = constant 10 : index
// CHECK: [[C0:%.*]] = constant 0 : index
// CHECK: [[C1:%.*]] = constant 1 : index
// CHECK: [[C2:%.*]] = constant 2 : index
// CHECK: [[C3:%.*]] = constant 3 : index
// CHECK: [[C12:%.*]] = constant 12 : index
// CHECK: scf.parallel ([[NEW_I0:%.*]]) = ([[C0]]) to ([[C2]]) step ([[C1]]) {
// CHECK: [[I0:%.*]] = remi_signed [[NEW_I0]], [[C2]] : index
// CHECK: [[V0:%.*]] = divi_signed [[NEW_I0]], [[C2]] : index
// CHECK: [[V2:%.*]] = muli [[V0]], [[C10]] : index
// CHECK: [[I3:%.*]] = addi [[V2]], [[C9]] : index
// CHECK: "magic.op"([[I0]], [[C3]], [[C6]], [[I3]], [[C12]]) : (index, index, index, index, index) -> index
// CHECK: scf.yield
// CHECK-NEXT: }
// CHECK-NEXT: return