xref: /llvm-project/flang/test/HLFIR/order_assignments/saving-mask-and-rhs.fir (revision fc2c8fed0b47217814e2b917e94d2d8b185c35a2)
1// Test when the saved mask is used in the same run to save
2// another value (like the RHS).
3// RUN: fir-opt %s --lower-hlfir-ordered-assignments | FileCheck %s
4
5func.func @saving_mask_and_rhs(%arg0: !fir.ref<!fir.array<10xi32>>) {
6  %c-1 = arith.constant -1 : index
7  %c1 = arith.constant 1 : index
8  %c0_i32 = arith.constant 0 : i32
9  %c10 = arith.constant 10 : index
10  %0 = fir.shape %c10 : (index) -> !fir.shape<1>
11  %1:2 = hlfir.declare %arg0(%0) {uniq_name = "x"} : (!fir.ref<!fir.array<10xi32>>, !fir.shape<1>) -> (!fir.ref<!fir.array<10xi32>>, !fir.ref<!fir.array<10xi32>>)
12  hlfir.where {
13    %2 = hlfir.elemental %0 : (!fir.shape<1>) -> !hlfir.expr<10x!fir.logical<4>> {
14    ^bb0(%arg1: index):
15      %3 = hlfir.designate %1#0 (%arg1)  : (!fir.ref<!fir.array<10xi32>>, index) -> !fir.ref<i32>
16      %4 = fir.load %3 : !fir.ref<i32>
17      %5 = arith.cmpi sgt, %4, %c0_i32 : i32
18      %6 = fir.convert %5 : (i1) -> !fir.logical<4>
19      hlfir.yield_element %6 : !fir.logical<4>
20    }
21    hlfir.yield %2 : !hlfir.expr<10x!fir.logical<4>> cleanup {
22      hlfir.destroy %2 : !hlfir.expr<10x!fir.logical<4>>
23    }
24  } do {
25    hlfir.region_assign {
26      hlfir.yield %1#0 : !fir.ref<!fir.array<10xi32>>
27    } to {
28      %2 = hlfir.designate %1#0 (%c10:%c1:%c-1)  shape %0 : (!fir.ref<!fir.array<10xi32>>, index, index, index, !fir.shape<1>) -> !fir.box<!fir.array<10xi32>>
29      hlfir.yield %2 : !fir.box<!fir.array<10xi32>>
30    }
31  }
32  return
33}
34
35
36// Creating mask temporary.
37
38// CHECK-LABEL:   func.func @saving_mask_and_rhs(
39// CHECK:  %[[VAL_8:.*]] = hlfir.elemental {{.*}} !hlfir.expr<10x!fir.logical<4>>
40// CHECK:  %[[VAL_14:.*]]:3 = hlfir.associate %[[VAL_8]]({{.*}}) {uniq_name = ".tmp.where"}
41
42// Creating RHS temporary using the mask temporary (and not the hlfir.elemental)
43
44// CHECK:  %[[VAL_25:.*]] = fir.allocmem !fir.array<?xi32>, %{{.*}} {bindc_name = ".tmp.where", uniq_name = ""}
45// CHECK:  %[[VAL_27:.*]]:2 = hlfir.declare %[[VAL_25]]({{.*}}) {uniq_name = ".tmp.where"}
46// CHECK:  fir.do_loop
47// CHECK:    %[[VAL_29:.*]] = hlfir.designate %[[VAL_14]]#0 ({{.*}})
48// CHECK:    %[[VAL_30:.*]] = fir.load %[[VAL_29]] : !fir.ref<!fir.logical<4>>
49// CHECK:    %[[VAL_31:.*]] = fir.convert %[[VAL_30]] : (!fir.logical<4>) -> i1
50// CHECK:    fir.if %[[VAL_31]] {
51// CHECK:      %[[VAL_36:.*]] = hlfir.designate %[[VAL_27]]#0 ({{.*}})
52// CHECK:      hlfir.assign %{{.*}} to %[[VAL_36]] : i32, !fir.ref<i32>
53// CHECK:    }
54// CHECK:  }
55
56func.func @forall_mask_and_rhs(%arg0: !fir.ref<!fir.array<10xi32>>) {
57  %c0_i32 = arith.constant 0 : i32
58  %c1 = arith.constant 1 : index
59  %c10 = arith.constant 10 : index
60  %c11 = arith.constant 11 : index
61  %0 = fir.shape %c10 : (index) -> !fir.shape<1>
62  %1:2 = hlfir.declare %arg0(%0) {uniq_name = "x"} : (!fir.ref<!fir.array<10xi32>>, !fir.shape<1>) -> (!fir.ref<!fir.array<10xi32>>, !fir.ref<!fir.array<10xi32>>)
63  hlfir.forall lb {
64    hlfir.yield %c1 : index
65  } ub {
66    hlfir.yield %c10 : index
67  }  (%arg1: index) {
68    hlfir.forall_mask {
69      %2 = arith.subi %c11, %arg1 : index
70      %3 = hlfir.designate %1#0 (%2)  : (!fir.ref<!fir.array<10xi32>>, index) -> !fir.ref<i32>
71      %4 = fir.load %3 : !fir.ref<i32>
72      %5 = arith.cmpi sgt, %4, %c0_i32 : i32
73      hlfir.yield %5 : i1
74    } do {
75      hlfir.region_assign {
76        %2 = arith.subi %c11, %arg1 : index
77        %3 = hlfir.designate %1#0 (%2)  : (!fir.ref<!fir.array<10xi32>>, index) -> !fir.ref<i32>
78        %4 = fir.load %3 : !fir.ref<i32>
79        hlfir.yield %4 : i32
80      } to {
81        %2 = hlfir.designate %1#0 (%arg1)  : (!fir.ref<!fir.array<10xi32>>, index) -> !fir.ref<i32>
82        hlfir.yield %2 : !fir.ref<i32>
83      }
84    }
85  }
86  return
87}
88
89// The mask and rhs are saved in the same loop, the mask value is a scalar i1
90// and it can be used directly to mask the rhs (instead of loading the temp).
91
92// CHECK-LABEL:   func.func @forall_mask_and_rhs(
93// CHECK:           %[[VAL_18:.*]] = fir.allocmem !fir.array<?xi1>, %{{.*}} {bindc_name = ".tmp.forall", uniq_name = ""}
94// CHECK:           %[[VAL_20:.*]]:2 = hlfir.declare %[[VAL_18]](%{{.*}}) {uniq_name = ".tmp.forall"}
95// CHECK:           %[[VAL_29:.*]] = fir.allocmem !fir.array<?xi32>, %{{.*}} {bindc_name = ".tmp.forall", uniq_name = ""}
96// CHECK:           %[[VAL_31:.*]]:2 = hlfir.declare %[[VAL_29]](%{{.*}}) {uniq_name = ".tmp.forall"}
97// CHECK:             %[[VAL_36:.*]] = arith.cmpi sgt, %{{.*}}, %{{.*}} : i32
98// CHECK:             %[[VAL_39:.*]] = hlfir.designate %[[VAL_20]]#0 (%{{.*}})
99// CHECK:             hlfir.assign %[[VAL_36]] to %[[VAL_39]] : i1, !fir.ref<i1>
100// CHECK:             fir.if %[[VAL_36]] {
101// CHECK:               %[[VAL_45:.*]] = hlfir.designate %[[VAL_31]]#0 (%{{.*}})
102// CHECK:               hlfir.assign %{{.*}} to %[[VAL_45]] : i32, !fir.ref<i32>
103// CHECK:             }
104// CHECK:           }
105