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1! Test lowering of pointer disassociation2! RUN: bbc -emit-fir -hlfir=false %s -o - | FileCheck %s3 4 5! -----------------------------------------------------------------------------6! Test p => NULL()7! -----------------------------------------------------------------------------8 9 10! CHECK-LABEL: func @_QPtest_scalar(11! CHECK-SAME: %[[p:.*]]: !fir.ref<!fir.box<!fir.ptr<f32>>>{{.*}})12subroutine test_scalar(p)13 real, pointer :: p14 ! CHECK: %[[null:.*]] = fir.zero_bits !fir.ptr<f32>15 ! CHECK: %[[box:.*]] = fir.embox %[[null]] : (!fir.ptr<f32>) -> !fir.box<!fir.ptr<f32>>16 ! CHECK: fir.store %[[box]] to %[[p]] : !fir.ref<!fir.box<!fir.ptr<f32>>>17 p => NULL()18end subroutine19 20! CHECK-LABEL: func @_QPtest_scalar_char(21! CHECK-SAME: %[[p:.*]]: !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>{{.*}})22subroutine test_scalar_char(p)23 character(:), pointer :: p24 ! CHECK: %[[null:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,?>>25 ! CHECK: %[[box:.*]] = fir.embox %[[null]] typeparams %c0{{.*}} : (!fir.ptr<!fir.char<1,?>>, index) -> !fir.box<!fir.ptr<!fir.char<1,?>>>26 ! CHECK: fir.store %[[box]] to %[[p]] : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>27 p => NULL()28end subroutine29 30! CHECK-LABEL: func @_QPtest_array(31! CHECK-SAME: %[[p:.*]]: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>{{.*}})32subroutine test_array(p)33 real, pointer :: p(:)34 ! CHECK: %[[null:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>>35 ! CHECK: %[[shape:.*]] = fir.shape %c0{{.*}}36 ! CHECK: %[[box:.*]] = fir.embox %[[null]](%[[shape]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>37 ! CHECK: fir.store %[[box]] to %[[p]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>38 p => NULL()39end subroutine40 41! Test p(lb, ub) => NULL() which is none sens but is not illegal.42! CHECK-LABEL: func @_QPtest_array_remap(43! CHECK-SAME: %[[p:.*]]: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>{{.*}})44subroutine test_array_remap(p)45 real, pointer :: p(:)46 ! CHECK: %[[null:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>>47 ! CHECK: %[[shape:.*]] = fir.shape %c0{{.*}}48 ! CHECK: %[[box:.*]] = fir.embox %[[null]](%[[shape]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>49 ! CHECK: fir.store %[[box]] to %[[p]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>50 p(10:20) => NULL()51end subroutine52 53! -----------------------------------------------------------------------------54! Test p => NULL(MOLD)55! -----------------------------------------------------------------------------56 57! CHECK-LABEL: func @_QPtest_scalar_mold(58! CHECK-SAME: %[[p:.*]]: !fir.ref<!fir.box<!fir.ptr<f32>>>{{[^,]*}},59subroutine test_scalar_mold(p, x)60 real, pointer :: p, x61 ! CHECK: %[[VAL_0:.*]] = fir.alloca !fir.box<!fir.ptr<f32>>62 ! CHECK: %[[VAL_1:.*]] = fir.zero_bits !fir.ptr<f32>63 ! CHECK: %[[VAL_2:.*]] = fir.embox %[[VAL_1]] : (!fir.ptr<f32>) -> !fir.box<!fir.ptr<f32>>64 ! CHECK: fir.store %[[VAL_2]] to %[[VAL_0]] : !fir.ref<!fir.box<!fir.ptr<f32>>>65 ! CHECK: %[[VAL_3:.*]] = fir.load %[[VAL_0]] : !fir.ref<!fir.box<!fir.ptr<f32>>>66 ! CHECK: %[[VAL_4:.*]] = fir.box_addr %[[VAL_3]] : (!fir.box<!fir.ptr<f32>>) -> !fir.ptr<f32>67 ! CHECK: %[[VAL_5:.*]] = fir.embox %[[VAL_4]] : (!fir.ptr<f32>) -> !fir.box<!fir.ptr<f32>>68 ! CHECK: fir.store %[[VAL_5]] to %[[p]] : !fir.ref<!fir.box<!fir.ptr<f32>>>69 p => NULL(x)70end subroutine71 72! CHECK-LABEL: func @_QPtest_scalar_char_mold(73! CHECK-SAME: %[[p:.*]]: !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>{{[^,]*}},74subroutine test_scalar_char_mold(p, x)75 character(:), pointer :: p, x76 ! CHECK: %[[VAL_7:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.char<1,?>>>77 ! CHECK: %[[VAL_8:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,?>>78 ! CHECK: %[[VAL_9:.*]] = arith.constant 0 : index79 ! CHECK: %[[VAL_10:.*]] = fir.embox %[[VAL_8]] typeparams %[[VAL_9]] : (!fir.ptr<!fir.char<1,?>>, index) -> !fir.box<!fir.ptr<!fir.char<1,?>>>80 ! CHECK: fir.store %[[VAL_10]] to %[[VAL_7]] : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>81 ! CHECK: %[[VAL_11:.*]] = fir.load %[[VAL_7]] : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>82 ! CHECK: %[[VAL_12:.*]] = fir.box_elesize %[[VAL_11]] : (!fir.box<!fir.ptr<!fir.char<1,?>>>) -> index83 ! CHECK: %[[VAL_13:.*]] = fir.box_addr %[[VAL_11]] : (!fir.box<!fir.ptr<!fir.char<1,?>>>) -> !fir.ptr<!fir.char<1,?>>84 ! CHECK: %[[VAL_14:.*]] = fir.embox %[[VAL_13]] typeparams %[[VAL_12]] : (!fir.ptr<!fir.char<1,?>>, index) -> !fir.box<!fir.ptr<!fir.char<1,?>>>85 ! CHECK: fir.store %[[VAL_14]] to %[[p]] : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>86 p => NULL(x)87end subroutine88 89! CHECK-LABEL: func @_QPtest_array_mold(90! CHECK-SAME: %[[p:.*]]: !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>{{[^,]*}},91subroutine test_array_mold(p, x)92 real, pointer :: p(:), x(:)93 ! CHECK: %[[VAL_0:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?xf32>>>94 ! CHECK: %[[VAL_1:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>>95 ! CHECK: %[[VAL_2:.*]] = arith.constant 0 : index96 ! CHECK: %[[VAL_3:.*]] = fir.shape %[[VAL_2]] : (index) -> !fir.shape<1>97 ! CHECK: %[[VAL_4:.*]] = fir.embox %[[VAL_1]](%[[VAL_3]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>98 ! CHECK: fir.store %[[VAL_4]] to %[[VAL_0]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>99 ! CHECK: %[[VAL_5:.*]] = fir.load %[[VAL_0]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>100 ! CHECK: %[[VAL_6:.*]] = arith.constant 0 : index101 ! CHECK: %[[VAL_7:.*]]:3 = fir.box_dims %[[VAL_5]], %[[VAL_6]] : (!fir.box<!fir.ptr<!fir.array<?xf32>>>, index) -> (index, index, index)102 ! CHECK: %[[VAL_8:.*]] = fir.shift %[[VAL_7]]#0 : (index) -> !fir.shift<1>103 ! CHECK: %[[VAL_9:.*]] = fir.rebox %[[VAL_5]](%[[VAL_8]]) : (!fir.box<!fir.ptr<!fir.array<?xf32>>>, !fir.shift<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>104 ! CHECK: fir.store %[[VAL_9]] to %[[p]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>105 p => NULL(x)106end subroutine107 108subroutine test_polymorphic_null(p)109 type t110 end type111 class(t), pointer :: p(:)112 p => null()113end subroutine114! CHECK-LABEL: func.func @_QPtest_polymorphic_null(115! CHECK-SAME: %[[VAL_0:.*]]: !fir.ref<!fir.class<!fir.ptr<!fir.array<?x!fir.type<_QFtest_polymorphic_nullTt>>>>>116! CHECK: %[[VAL_1:.*]] = fir.type_desc !fir.type<_QFtest_polymorphic_nullTt>117! CHECK: %[[VAL_2:.*]] = fir.convert %[[VAL_0]] : (!fir.ref<!fir.class<!fir.ptr<!fir.array<?x!fir.type<_QFtest_polymorphic_nullTt>>>>>) -> !fir.ref<!fir.box<none>>118! CHECK: %[[VAL_3:.*]] = fir.convert %[[VAL_1]] : (!fir.tdesc<!fir.type<_QFtest_polymorphic_nullTt>>) -> !fir.ref<none>119! CHECK: %[[VAL_4:.*]] = arith.constant 1 : i32120! CHECK: %[[VAL_5:.*]] = arith.constant 0 : i32121! CHECK: fir.call @_FortranAPointerNullifyDerived(%[[VAL_2]], %[[VAL_3]], %[[VAL_4]], %[[VAL_5]]) {{.*}}: (!fir.ref<!fir.box<none>>, !fir.ref<none>, i32, i32) -> ()122 123subroutine test_unlimited_polymorphic_null(p)124 class(*), pointer :: p(:)125 p => null()126end subroutine127! CHECK-LABEL: func.func @_QPtest_unlimited_polymorphic_null(128! CHECK-SAME: %[[VAL_0:.*]]: !fir.ref<!fir.class<!fir.ptr<!fir.array<?xnone>>>>129! CHECK: %[[VAL_1:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xnone>>130! CHECK: %[[VAL_2:.*]] = arith.constant 0 : index131! CHECK: %[[VAL_3:.*]] = fir.shape %[[VAL_2]] : (index) -> !fir.shape<1>132! CHECK: %[[VAL_4:.*]] = fir.embox %[[VAL_1]](%[[VAL_3]]) : (!fir.ptr<!fir.array<?xnone>>, !fir.shape<1>) -> !fir.class<!fir.ptr<!fir.array<?xnone>>>133! CHECK: fir.store %[[VAL_4]] to %[[VAL_0]] : !fir.ref<!fir.class<!fir.ptr<!fir.array<?xnone>>>>134