xref: /llvm-project/flang/test/Transforms/generic-loop-rewriting.mlir (revision 1e2d5f7943d09d658a5fbacf661d2c6c361f857c)
1// RUN: fir-opt --omp-generic-loop-conversion %s | FileCheck %s
2
3omp.private {type = private} @_QFteams_loopEi_private_ref_i32 : !fir.ref<i32> alloc {
4^bb0(%arg0: !fir.ref<i32>):
5  omp.yield(%arg0 : !fir.ref<i32>)
6}
7
8func.func @_QPteams_loop() {
9  %i = fir.alloca i32
10  omp.teams {
11    %c0 = arith.constant 0 : i32
12    %c10 = arith.constant 10 : i32
13    %c1 = arith.constant 1 : i32
14    omp.loop private(@_QFteams_loopEi_private_ref_i32 %i -> %arg2 : !fir.ref<i32>) {
15      omp.loop_nest (%arg3) : i32 = (%c0) to (%c10) inclusive step (%c1) {
16        fir.store %arg3 to %arg2 : !fir.ref<i32>
17        omp.yield
18      }
19    }
20    omp.terminator
21  }
22  return
23}
24
25// CHECK-LABEL: func.func @_QPteams_loop
26// CHECK:         %[[I:.*]] = fir.alloca i32
27// CHECK:         omp.teams {
28//
29// TODO we probably need to move the `loop_nest` bounds ops from the `teams`
30// region to the `parallel` region to avoid making these values `shared`. We can
31// find the backward slices of these bounds that are within the `teams` region
32// and move these slices to the `parallel` op.
33
34// CHECK:           %[[LB:.*]] = arith.constant 0 : i32
35// CHECK:           %[[UB:.*]] = arith.constant 10 : i32
36// CHECK:           %[[STEP:.*]] = arith.constant 1 : i32
37//
38// CHECK:           omp.parallel private(@{{.*}} %[[I]]
39// CHECK-SAME:        -> %[[I_PRIV_ARG:[^[:space:]]+]] : !fir.ref<i32>) {
40// CHECK:             omp.distribute {
41// CHECK:               omp.wsloop {
42//
43// CHECK:                 omp.loop_nest (%{{.*}}) : i32 =
44// CHECK-SAME:              (%[[LB]]) to (%[[UB]]) inclusive step (%[[STEP]]) {
45// CHECK:                   fir.store %{{.*}} to %[[I_PRIV_ARG]] : !fir.ref<i32>
46// CHECK:                 }
47// CHECK:               }
48// CHECK:             }
49// CHECK:           }
50// CHECK:         }
51