1! Test default initialization of global variables (static init) 2! RUN: bbc -hlfir=false %s -o - | FileCheck %s --check-prefixes=%if target={{.*-aix.*|sparc.*}} %{"CHECK","CHECK-BE"%} \ 3! RUN: %else %{"CHECK","CHECK-LE"%} 4 5module tinit 6 real, target :: ziel(100) 7 8 type tno_init 9 integer :: k 10 end type 11 12 type t0 13 integer :: k = 66 14 end type 15 16 ! Test type that combines all kinds of components with and without 17 ! default initialization. 18 type t1 19 ! Simple type component with default init 20 integer :: i = 42 21 ! Simple type component without default init 22 integer :: j 23 24 ! Pointer component with a default initial target 25 real, pointer :: x(:) => ziel 26 ! Pointer component with no init 27 real, pointer :: y(:) 28 ! Pointer component with null init 29 real, pointer :: z(:) => NULL() 30 31 ! Character component with init 32 character(10) c1 = "hello" 33 ! Character component without init 34 character(10) c2 35 36 ! Component with a derived type that has default init 37 type(t0) :: somet0 38 ! Component with a derived type that has no default init. 39 type(tno_init) :: sometno_init 40 ! Component whose type default init is overridden by 41 ! default init for the component. 42 type(t0) :: somet0_2 = t0(33) 43 ! Array component with a derived type that has default init 44 type(t0) :: somet0_array 45 end type 46 47 ! Test type that extends type with default init. 48 type, extends(t0) :: textendst0 49 integer :: l 50 end type 51 52 ! Test type with default init in equivalences 53 type tseq 54 sequence 55 integer :: i = 2 56 integer :: j = 3 57 end type 58 59 type tv 60 real, pointer :: v(:) 61 end type 62 63 real, pointer :: mv(:) 64 65 ! Test scalar with default init 66 type(t0) :: at0 67! CHECK-LABEL: fir.global @_QMtinitEat0 : !fir.type<_QMtinitTt0{k:i32}> { 68 ! CHECK: %[[VAL_0:.*]] = arith.constant 66 : i32 69 ! CHECK: %[[VAL_1:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> 70 ! CHECK: %[[VAL_2:.*]] = fir.insert_value %[[VAL_1]], %[[VAL_0]], ["k", !fir.type<_QMtinitTt0{k:i32}>] : (!fir.type<_QMtinitTt0{k:i32}>, i32) -> !fir.type<_QMtinitTt0{k:i32}> 71 ! CHECK: fir.has_value %[[VAL_2]] : !fir.type<_QMtinitTt0{k:i32}> 72 73 ! Test array with default init 74 type(t0) :: bt0(100) 75! CHECK-LABEL: @_QMtinitEbt0 : !fir.array<100x!fir.type<_QMtinitTt0{k:i32}>> { 76 ! CHECK: %[[VAL_3:.*]] = arith.constant 66 : i32 77 ! CHECK: %[[VAL_4:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> 78 ! CHECK: %[[VAL_5:.*]] = fir.insert_value %[[VAL_4]], %[[VAL_3]], ["k", !fir.type<_QMtinitTt0{k:i32}>] : (!fir.type<_QMtinitTt0{k:i32}>, i32) -> !fir.type<_QMtinitTt0{k:i32}> 79 ! CHECK: %[[VAL_6:.*]] = fir.undefined !fir.array<100x!fir.type<_QMtinitTt0{k:i32}>> 80 ! CHECK: %[[VAL_7:.*]] = fir.insert_on_range %[[VAL_6]], %[[VAL_5]] from (0) to (99) : (!fir.array<100x!fir.type<_QMtinitTt0{k:i32}>>, !fir.type<_QMtinitTt0{k:i32}>) -> !fir.array<100x!fir.type<_QMtinitTt0{k:i32}>> 81 ! CHECK: fir.has_value %[[VAL_7]] : !fir.array<100x!fir.type<_QMtinitTt0{k:i32}>> 82 83 ! Test default init overridden by explicit init 84 type(t0) :: ct0 = t0(42) 85! CHECK-LABEL: fir.global @_QMtinitEct0 : !fir.type<_QMtinitTt0{k:i32}> { 86 ! CHECK: %[[VAL_8:.*]] = arith.constant 42 : i32 87 ! CHECK: %[[VAL_9:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> 88 ! CHECK: %[[VAL_10:.*]] = fir.insert_value %[[VAL_9]], %[[VAL_8]], ["k", !fir.type<_QMtinitTt0{k:i32}>] : (!fir.type<_QMtinitTt0{k:i32}>, i32) -> !fir.type<_QMtinitTt0{k:i32}> 89 ! CHECK: fir.has_value %[[VAL_10]] : !fir.type<_QMtinitTt0{k:i32}> 90 91 ! Test a non trivial derived type mixing all sorts of default initialization 92 type(t1) :: dt1 93! CHECK-LABEL: @_QMtinitEdt1 : !fir.type<_QMtinitTt1{{.*}}> { 94 ! CHECK-DAG: %[[VAL_11:.*]] = arith.constant 42 : i32 95 ! CHECK-DAG: %[[VAL_12:.*]] = arith.constant 100 : index 96 ! CHECK-DAG: %[[VAL_13:.*]] = arith.constant 0 : index 97 ! CHECK-DAG: %[[VAL_14:.*]] = arith.constant 33 : i32 98 ! CHECK-DAG: %[[VAL_15:.*]] = arith.constant 66 : i32 99 ! CHECK: %[[VAL_16:.*]] = fir.undefined !fir.type<_QMtinitTt1{{.*}}> 100 ! CHECK: %[[VAL_17:.*]] = fir.insert_value %[[VAL_16]], %[[VAL_11]], ["i", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, i32) -> !fir.type<_QMtinitTt1{{.*}}> 101 ! CHECK: %[[VAL_18:.*]] = fir.zero_bits i32 102 ! CHECK: %[[VAL_19:.*]] = fir.insert_value %[[VAL_17]], %[[VAL_18]], ["j", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, i32) -> !fir.type<_QMtinitTt1{{.*}}> 103 ! CHECK: %[[VAL_20:.*]] = fir.address_of(@_QMtinitEziel) : !fir.ref<!fir.array<100xf32>> 104 ! CHECK: %[[VAL_21:.*]] = fir.shape %[[VAL_12]] : (index) -> !fir.shape<1> 105 ! CHECK: %[[VAL_22:.*]] = fir.embox %[[VAL_20]](%[[VAL_21]]) : (!fir.ref<!fir.array<100xf32>>, !fir.shape<1>) -> !fir.box<!fir.array<100xf32>> 106 ! CHECK: %[[VAL_22_B:.*]] = fir.rebox %[[VAL_22]] : (!fir.box<!fir.array<100xf32>>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>> 107 ! CHECK: %[[VAL_23:.*]] = fir.insert_value %[[VAL_19]], %[[VAL_22_B]], ["x", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.box<!fir.ptr<!fir.array<?xf32>>>) -> !fir.type<_QMtinitTt1{{.*}}> 108 ! CHECK: %[[VAL_24:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>> 109 ! CHECK: %[[VAL_25:.*]] = fir.shape %[[VAL_13]] : (index) -> !fir.shape<1> 110 ! CHECK: %[[VAL_26:.*]] = fir.embox %[[VAL_24]](%[[VAL_25]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>> 111 ! CHECK: %[[VAL_27:.*]] = fir.insert_value %[[VAL_23]], %[[VAL_26]], ["y", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.box<!fir.ptr<!fir.array<?xf32>>>) -> !fir.type<_QMtinitTt1{{.*}}> 112 ! CHECK: %[[VAL_28:.*]] = fir.insert_value %[[VAL_27]], %[[VAL_26]], ["z", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.box<!fir.ptr<!fir.array<?xf32>>>) -> !fir.type<_QMtinitTt1{{.*}}> 113 ! CHECK: %[[VAL_29:.*]] = fir.string_lit "hello "(10) : !fir.char<1,10> 114 ! CHECK: %[[VAL_30:.*]] = fir.insert_value %[[VAL_28]], %[[VAL_29]], ["c1", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.char<1,10>) -> !fir.type<_QMtinitTt1{{.*}}> 115 ! CHECK: %[[VAL_31:.*]] = fir.zero_bits !fir.char<1,10> 116 ! CHECK: %[[VAL_32:.*]] = fir.insert_value %[[VAL_30]], %[[VAL_31]], ["c2", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.char<1,10>) -> !fir.type<_QMtinitTt1{{.*}}> 117 ! CHECK: %[[VAL_33:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> 118 ! CHECK: %[[VAL_34:.*]] = fir.insert_value %[[VAL_33]], %[[VAL_15]], ["k", !fir.type<_QMtinitTt0{k:i32}>] : (!fir.type<_QMtinitTt0{k:i32}>, i32) -> !fir.type<_QMtinitTt0{k:i32}> 119 ! CHECK: %[[VAL_35:.*]] = fir.insert_value %[[VAL_32]], %[[VAL_34]], ["somet0", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.type<_QMtinitTt0{k:i32}>) -> !fir.type<_QMtinitTt1{{.*}}> 120 ! CHECK: %[[VAL_36:.*]] = fir.zero_bits !fir.type<_QMtinitTtno_init{k:i32}> 121 ! CHECK: %[[VAL_37:.*]] = fir.insert_value %[[VAL_35]], %[[VAL_36]], ["sometno_init", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.type<_QMtinitTtno_init{k:i32}>) -> !fir.type<_QMtinitTt1{{.*}}> 122 ! CHECK: %[[VAL_38:.*]] = fir.insert_value %[[VAL_33]], %[[VAL_14]], ["k", !fir.type<_QMtinitTt0{k:i32}>] : (!fir.type<_QMtinitTt0{k:i32}>, i32) -> !fir.type<_QMtinitTt0{k:i32}> 123 ! CHECK: %[[VAL_39:.*]] = fir.insert_value %[[VAL_37]], %[[VAL_38]], ["somet0_2", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.type<_QMtinitTt0{k:i32}>) -> !fir.type<_QMtinitTt1{{.*}}> 124 ! CHECK: %[[VAL_40:.*]] = fir.insert_value %[[VAL_39]], %[[VAL_34]], ["somet0_array", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.type<_QMtinitTt0{k:i32}>) -> !fir.type<_QMtinitTt1{{.*}}> 125 ! CHECK: fir.has_value %[[VAL_40]] : !fir.type<_QMtinitTt1{{.*}}> 126 127 ! Test a type extending other type with a default init 128 type(textendst0) :: etextendst0 129! CHECK-LABEL: @_QMtinitEetextendst0 : !fir.type<_QMtinitTtextendst0{k:i32,l:i32}> { 130 ! CHECK: %[[VAL_42:.*]] = arith.constant 66 : i32 131 ! CHECK: %[[VAL_43:.*]] = fir.undefined !fir.type<_QMtinitTtextendst0{k:i32,l:i32}> 132 ! CHECK: %[[VAL_44:.*]] = fir.insert_value %[[VAL_43]], %[[VAL_42]], ["k", !fir.type<_QMtinitTtextendst0{k:i32,l:i32}>] : (!fir.type<_QMtinitTtextendst0{k:i32,l:i32}>, i32) -> !fir.type<_QMtinitTtextendst0{k:i32,l:i32}> 133 ! CHECK: %[[VAL_45:.*]] = fir.zero_bits i32 134 ! CHECK: %[[VAL_46:.*]] = fir.insert_value %[[VAL_44]], %[[VAL_45]], ["l", !fir.type<_QMtinitTtextendst0{k:i32,l:i32}>] : (!fir.type<_QMtinitTtextendst0{k:i32,l:i32}>, i32) -> !fir.type<_QMtinitTtextendst0{k:i32,l:i32}> 135 ! CHECK: fir.has_value %[[VAL_46]] : !fir.type<_QMtinitTtextendst0{k:i32,l:i32}> 136 137 type(tv) :: withmold = tv(null(mv)) 138 ! CHECK-LABEL: fir.global @_QMtinitEwithmold 139 ! CHECK: %[[C0:.*]] = arith.constant 0 : index 140 ! CHECK: %[[UNDEF:.*]] = fir.undefined !fir.type<_QMtinitTtv{v:!fir.box<!fir.ptr<!fir.array<?xf32>>>}> 141 ! CHECK: %[[ZERO:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>> 142 ! CHECK: %[[SHAPE:.*]] = fir.shape %[[C0]] : (index) -> !fir.shape<1> 143 ! CHECK: %[[ZEROBOX:.*]] = fir.embox %[[ZERO]](%[[SHAPE]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>> 144 ! CHECK: %[[RET:.*]] = fir.insert_value %[[UNDEF]], %[[ZEROBOX]], ["v", !fir.type<_QMtinitTtv{v:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>] : (!fir.type<_QMtinitTtv{v:!fir.box<!fir.ptr<!fir.array<?xf32>>>}>, !fir.box<!fir.ptr<!fir.array<?xf32>>>) -> !fir.type<_QMtinitTtv{v:!fir.box<!fir.ptr<!fir.array<?xf32>>>}> 145 ! CHECK: fir.has_value %[[RET]] : !fir.type<_QMtinitTtv{v:!fir.box<!fir.ptr<!fir.array<?xf32>>>}> 146 147end module 148 149 150! Test that default initialization is also applied to saved variables 151subroutine saved() 152 use tinit 153 type(t0), save :: savedt0 154! CHECK-LABEL: fir.global internal @_QFsavedEsavedt0 : !fir.type<_QMtinitTt0{k:i32}> { 155 ! CHECK: %[[VAL_47:.*]] = arith.constant 66 : i32 156 ! CHECK: %[[VAL_48:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> 157 ! CHECK: %[[VAL_49:.*]] = fir.insert_value %[[VAL_48]], %[[VAL_47]], ["k", !fir.type<_QMtinitTt0{k:i32}>] : (!fir.type<_QMtinitTt0{k:i32}>, i32) -> !fir.type<_QMtinitTt0{k:i32}> 158 ! CHECK: fir.has_value %[[VAL_49]] : !fir.type<_QMtinitTt0{k:i32}> 159end subroutine 160 161! Test default initialization in equivalences 162subroutine eqv() 163 use tinit 164 type(tseq), save :: somet 165 integer :: i(2) 166 equivalence (somet, i) 167! CHECK-LABEL: fir.global internal @_QFeqvEi : !fir.array<2xi32> { 168 ! CHECK-DAG: %[[VAL_50:.*]] = arith.constant 2 : i32 169 ! CHECK-DAG: %[[VAL_51:.*]] = arith.constant 3 : i32 170 ! CHECK: %[[VAL_52:.*]] = fir.undefined !fir.array<2xi32> 171 ! CHECK: %[[VAL_53:.*]] = fir.insert_value %[[VAL_52]], %[[VAL_50]], [0 : index] : (!fir.array<2xi32>, i32) -> !fir.array<2xi32> 172 ! CHECK: %[[VAL_54:.*]] = fir.insert_value %[[VAL_53]], %[[VAL_51]], [1 : index] : (!fir.array<2xi32>, i32) -> !fir.array<2xi32> 173 ! CHECK: fir.has_value %[[VAL_54]] : !fir.array<2xi32> 174end subroutine 175 176subroutine eqv_explicit_init() 177 use tinit 178 type(tseq), save :: somet 179 integer :: i(2) = [4, 5] 180 equivalence (somet, i) 181! CHECK-LABEL: fir.global internal @_QFeqv_explicit_initEi : !fir.array<2xi32> { 182 ! CHECK-DAG: %[[VAL_57:.*]] = arith.constant 4 : i32 183 ! CHECK-DAG: %[[VAL_58:.*]] = arith.constant 5 : i32 184 ! CHECK: %[[VAL_59:.*]] = fir.undefined !fir.array<2xi32> 185 ! CHECK: %[[VAL_60:.*]] = fir.insert_value %[[VAL_59]], %[[VAL_57]], [0 : index] : (!fir.array<2xi32>, i32) -> !fir.array<2xi32> 186 ! CHECK: %[[VAL_61:.*]] = fir.insert_value %[[VAL_60]], %[[VAL_58]], [1 : index] : (!fir.array<2xi32>, i32) -> !fir.array<2xi32> 187 ! CHECK: fir.has_value %[[VAL_61]] : !fir.array<2xi32> 188end subroutine 189 190subroutine eqv_same_default_init() 191 use tinit 192 type(tseq), save :: somet1(2), somet2 193 equivalence (somet1(1), somet2) 194! CHECK-LABEL: fir.global internal @_QFeqv_same_default_initEsomet1 : !fir.array<2xi64> { 195 ! CHECK-LE: %[[VAL_62:.*]] = arith.constant 12884901890 : i64 196 ! CHECK-BE: %[[VAL_62:.*]] = arith.constant 8589934595 : i64 197 ! CHECK: %[[VAL_63:.*]] = fir.undefined !fir.array<2xi64> 198 ! CHECK: %[[VAL_64:.*]] = fir.insert_on_range %[[VAL_63]], %[[VAL_62]] from (0) to (1) : (!fir.array<2xi64>, i64) -> !fir.array<2xi64> 199 ! CHECK: fir.has_value %[[VAL_64]] : !fir.array<2xi64> 200end subroutine 201 202subroutine eqv_full_overlaps_with_explicit_init() 203 use tinit 204 type(tseq), save :: somet 205 integer, save :: link(4) 206 integer :: i(2) = [5, 6] 207 integer :: j(2) = [7, 8] 208 ! Equivalence: somet fully covered by explicit init. 209 ! i(1)=5 | i(2)=6 | - | - 210 ! - | somet%i | somet%j | 211 ! - | - | j(1)=7 | j(2)=8 212 equivalence (i, link(1)) 213 equivalence (somet, link(2)) 214 equivalence (j, link(3)) 215! CHECK-LABEL: fir.global internal @_QFeqv_full_overlaps_with_explicit_initEi : !fir.array<4xi32> { 216 ! CHECK-DAG: %[[VAL_73:.*]] = arith.constant 5 : i32 217 ! CHECK-DAG: %[[VAL_74:.*]] = arith.constant 6 : i32 218 ! CHECK-DAG: %[[VAL_75:.*]] = arith.constant 7 : i32 219 ! CHECK-DAG: %[[VAL_76:.*]] = arith.constant 8 : i32 220 ! CHECK-DAG: %[[VAL_77:.*]] = fir.undefined !fir.array<4xi32> 221 ! CHECK-DAG: %[[VAL_78:.*]] = fir.insert_value %[[VAL_77]], %[[VAL_73]], [0 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> 222 ! CHECK-DAG: %[[VAL_79:.*]] = fir.insert_value %[[VAL_78]], %[[VAL_74]], [1 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> 223 ! CHECK-DAG: %[[VAL_80:.*]] = fir.insert_value %[[VAL_79]], %[[VAL_75]], [2 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> 224 ! CHECK-DAG: %[[VAL_81:.*]] = fir.insert_value %[[VAL_80]], %[[VAL_76]], [3 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> 225 ! CHECK-DAG: fir.has_value %[[VAL_81]] : !fir.array<4xi32> 226end subroutine 227 228subroutine eqv_partial_overlaps_with_explicit_init() 229 use tinit 230 type(tseq), save :: somet 231 integer, save :: link(4) 232 integer :: i(2) = [5, 6] 233 integer :: j = 7 234 ! `somet` is only partially covered by explicit init, somet%j default 235 ! init value should be used in the equiv storage init to match nvfortran, 236 ! ifort, and nagfor behavior (gfortran refuses this code). 19.5.3.4 point 237 ! 10 specifies that explicit initialization overrides default initialization. 238 ! i(1)=5 | i(2)=6 | - | - 239 ! - | somet%i | somet%j | 240 ! - | - | - | j=7 241 equivalence (i, link(1)) 242 equivalence (somet, link(2)) 243 equivalence (j, link(4)) 244! CHECK-LABEL: fir.global internal @_QFeqv_partial_overlaps_with_explicit_initEi : !fir.array<4xi32> 245 ! CHECK-DAG: %[[VAL_82:.*]] = arith.constant 5 : i32 246 ! CHECK-DAG: %[[VAL_83:.*]] = arith.constant 6 : i32 247 ! CHECK-DAG: %[[VAL_84:.*]] = arith.constant 3 : i32 248 ! CHECK-DAG: %[[VAL_85:.*]] = arith.constant 7 : i32 249 ! CHECK: %[[VAL_86:.*]] = fir.undefined !fir.array<4xi32> 250 ! CHECK: %[[VAL_87:.*]] = fir.insert_value %[[VAL_86]], %[[VAL_82]], [0 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> 251 ! CHECK: %[[VAL_88:.*]] = fir.insert_value %[[VAL_87]], %[[VAL_83]], [1 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> 252 ! CHECK: %[[VAL_89:.*]] = fir.insert_value %[[VAL_88]], %[[VAL_84]], [2 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> 253 ! CHECK: %[[VAL_90:.*]] = fir.insert_value %[[VAL_89]], %[[VAL_85]], [3 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> 254 ! CHECK: fir.has_value %[[VAL_90]] : !fir.array<4xi32> 255end subroutine 256