xref: /llvm-project/flang/test/HLFIR/order_assignments/impure-where.fir (revision c7c5666aac543a49b485a133f4a94865e2613a43)
1// Test code generation of hlfir.where/hflir.elsewhere when an
2// "impure" mask is used and several runs are needed. The mask
3// must be saved so that the impure function is only evaluated once.
4// RUN: fir-opt %s --lower-hlfir-ordered-assignments | FileCheck %s
5
6func.func private @impure() -> !fir.heap<!fir.array<10x!fir.logical<4>>>
7func.func @test_elsewhere_impure_mask(%x: !fir.ref<!fir.array<10xi32>>, %y: !fir.ref<!fir.array<10xi32>>, %z: !fir.ref<!fir.array<10xi32>>, %mask: !fir.ref<!fir.array<10x!fir.logical<4>>>) {
8  %c-1 = arith.constant -1 : index
9  %c1 = arith.constant 1 : index
10  %c10 = arith.constant 10 : index
11  %1 = fir.shape %c10 : (index) -> !fir.shape<1>
12  hlfir.where {
13    hlfir.yield %mask : !fir.ref<!fir.array<10x!fir.logical<4>>>
14  } do {
15    hlfir.elsewhere mask {
16      %mask2 = hlfir.exactly_once : !fir.heap<!fir.array<10x!fir.logical<4>>> {
17        %imp = fir.call @impure() : () -> !fir.heap<!fir.array<10x!fir.logical<4>>>
18        hlfir.yield %imp : !fir.heap<!fir.array<10x!fir.logical<4>>> cleanup {
19          fir.freemem %imp : !fir.heap<!fir.array<10x!fir.logical<4>>>
20        }
21      }
22      hlfir.yield %mask2 : !fir.heap<!fir.array<10x!fir.logical<4>>>
23    } do {
24      hlfir.region_assign {
25        hlfir.yield %y : !fir.ref<!fir.array<10xi32>>
26      } to {
27        hlfir.yield %x : !fir.ref<!fir.array<10xi32>>
28      }
29      hlfir.region_assign {
30        hlfir.yield %x : !fir.ref<!fir.array<10xi32>>
31      } to {
32        hlfir.yield %z : !fir.ref<!fir.array<10xi32>>
33      }
34    }
35  }
36  return
37}
38// CHECK-LABEL:   func.func @test_elsewhere_impure_mask(
39// CHECK:           %[[VAL_12:.*]] = fir.call @impure() : () -> !fir.heap<!fir.array<10x!fir.logical<4>>>
40// CHECK:           %[[VAL_21:.*]] = fir.allocmem !fir.array<?x!fir.logical<4>>, %[[extent:[^ ]*]]
41// CHECK:           %[[VAL_22:.*]] = fir.shape %[[extent]] : (index) -> !fir.shape<1>
42// CHECK:           %[[VAL_23:.*]]:2 = hlfir.declare %[[VAL_21]](%{{.*}}) {uniq_name = ".tmp.where"}
43// CHECK:           fir.do_loop
44// CHECK:             fir.if {{.*}} {
45// CHECK:             } else {
46// CHECK:               %[[VAL_28:.*]] = hlfir.designate %[[VAL_12]] (%{{.*}})
47// CHECK:               %[[VAL_29:.*]] = fir.load %[[VAL_28]] : !fir.ref<!fir.logical<4>>
48// CHECK:               %[[VAL_32:.*]] = hlfir.designate %[[VAL_23]]#0 (%{{.*}})  : (!fir.box<!fir.array<?x!fir.logical<4>>>, index) -> !fir.ref<!fir.logical<4>>
49// CHECK:               hlfir.assign %[[VAL_29]] to %[[VAL_32]] : !fir.logical<4>, !fir.ref<!fir.logical<4>>
50// CHECK:             }
51// CHECK:           }
52// CHECK-NOT:       fir.call @impure
53// CHECK:           fir.do_loop
54// CHECK:             fir.if {{.*}} {
55// CHECK:             } else {
56// CHECK:               %[[VAL_42:.*]] = hlfir.designate %[[VAL_23]]#0 (%{{.*}})  : (!fir.box<!fir.array<?x!fir.logical<4>>>, index) -> !fir.ref<!fir.logical<4>>
57// CHECK:               %[[VAL_43:.*]] = fir.load %[[VAL_42]] : !fir.ref<!fir.logical<4>>
58// CHECK:               %[[VAL_44:.*]] = fir.convert %[[VAL_43]] : (!fir.logical<4>) -> i1
59// CHECK:               fir.if %[[VAL_44]] {
60// CHECK:               }
61// CHECK:             }
62// CHECK:           }
63// CHECK-NOT:       fir.call @impure
64// CHECK:           fir.do_loop
65// CHECK:             fir.if {{.*}} {
66// CHECK:             } else {
67// CHECK:               %[[VAL_52:.*]] = hlfir.designate %[[VAL_23]]#0 (%{{.*}})  : (!fir.box<!fir.array<?x!fir.logical<4>>>, index) -> !fir.ref<!fir.logical<4>>
68// CHECK:               %[[VAL_53:.*]] = fir.load %[[VAL_52]] : !fir.ref<!fir.logical<4>>
69// CHECK:               %[[VAL_54:.*]] = fir.convert %[[VAL_53]] : (!fir.logical<4>) -> i1
70// CHECK:               fir.if %[[VAL_54]] {
71// CHECK:               }
72// CHECK:             }
73// CHECK:           }
74// CHECK:           fir.freemem %[[VAL_21]] : !fir.heap<!fir.array<?x!fir.logical<4>>>
75// CHECK:           fir.freemem %[[VAL_12]] : !fir.heap<!fir.array<10x!fir.logical<4>>>
76// CHECK:           return
77// CHECK:         }
78