xref: /llvm-project/flang/test/HLFIR/order_assignments/forall-codegen-fuse-assignments.fir (revision c9e3840c832d4c3fbbf57f0a8c90ae3d80af8913)
1// Test code generation of hlfir.forall when assignment fusing is enabled
2// and possible.
3// RUN: fir-opt %s --lower-hlfir-ordered-assignments=fuse-assignments=true | FileCheck %s --check-prefix=FUSE
4// RUN: fir-opt %s --lower-hlfir-ordered-assignments=fuse-assignments=false | FileCheck %s --check-prefix=NOFUSE
5
6func.func @test_assignment_fusing(%x: !fir.ref<!fir.array<10xi32>>, %y : !fir.box<!fir.array<?xi32>>) {
7  %c42 = arith.constant 42 : i32
8  hlfir.forall lb {
9    %c1 = arith.constant 1 : index
10    hlfir.yield %c1 : index
11  } ub {
12    %c10 = arith.constant 10 : index
13    hlfir.yield %c10 : index
14  }  (%i: index) {
15    hlfir.region_assign {
16      hlfir.yield %c42 : i32
17    } to {
18      %2 = hlfir.designate %x (%i)  : (!fir.ref<!fir.array<10xi32>>, index) -> !fir.ref<i32>
19      hlfir.yield %2 : !fir.ref<i32>
20    }
21    hlfir.region_assign {
22      hlfir.yield %c42 : i32
23    } to {
24      %2 = hlfir.designate %y (%i)  : (!fir.box<!fir.array<?xi32>>, index) -> !fir.ref<i32>
25      hlfir.yield %2 : !fir.ref<i32>
26    }
27  }
28  return
29}
30// FUSE-LABEL:   func.func @test_assignment_fusing(
31// FUSE-SAME:                                      %[[VAL_0:.*]]: !fir.ref<!fir.array<10xi32>>,
32// FUSE-SAME:                                      %[[VAL_1:.*]]: !fir.box<!fir.array<?xi32>>) {
33// FUSE:           %[[VAL_2:.*]] = arith.constant 42 : i32
34// FUSE:           %[[VAL_3:.*]] = arith.constant 1 : index
35// FUSE:           %[[VAL_4:.*]] = arith.constant 10 : index
36// FUSE:           %[[VAL_5:.*]] = arith.constant 1 : index
37// FUSE:           fir.do_loop %[[VAL_6:.*]] = %[[VAL_3]] to %[[VAL_4]] step %[[VAL_5]] {
38// FUSE-NEXT:         %[[VAL_7:.*]] = hlfir.designate %[[VAL_0]] (%[[VAL_6]])  : (!fir.ref<!fir.array<10xi32>>, index) -> !fir.ref<i32>
39// FUSE-NEXT:         hlfir.assign %[[VAL_2]] to %[[VAL_7]] : i32, !fir.ref<i32>
40// FUSE-NEXT:         %[[VAL_8:.*]] = hlfir.designate %[[VAL_1]] (%[[VAL_6]])  : (!fir.box<!fir.array<?xi32>>, index) -> !fir.ref<i32>
41// FUSE-NEXT:         hlfir.assign %[[VAL_2]] to %[[VAL_8]] : i32, !fir.ref<i32>
42// FUSE-NEXT:      }
43// FUSE-NEXT:      return
44
45// NOFUSE-LABEL: func.func @test_assignment_fusing(
46// NOFUSE:         fir.do_loop
47// NOFUSE:           hlfir.assign
48// NOFUSE:         }
49// NOFUSE:         fir.do_loop
50// NOFUSE:           hlfir.assign
51// NOFUSE:         }
52