diff --git a/flang/test/Lower/default-initialization-globals.f90 b/flang/test/Lower/default-initialization-globals.f90 new file mode 100644 --- /dev/null +++ b/flang/test/Lower/default-initialization-globals.f90 @@ -0,0 +1,235 @@ +! Test default initialization of global variables (static init) +! RUN: bbc %s -o - | FileCheck %s + +module tinit + real, target :: ziel(100) + + type tno_init + integer :: k + end type + + type t0 + integer :: k = 66 + end type + + ! Test type that combines all kinds of components with and without + ! default initialization. + type t1 + ! Simple type component with default init + integer :: i = 42 + ! Simple type component without default init + integer :: j + + ! Pointer component with a default initial target + real, pointer :: x(:) => ziel + ! Pointer component with no init + real, pointer :: y(:) + ! Pointer component with null init + real, pointer :: z(:) => NULL() + + ! Character component with init + character(10) c1 = "hello" + ! Character component without init + character(10) c2 + + ! Component with a derived type that has default init + type(t0) :: somet0 + ! Component with a derived type that has no default init. + type(tno_init) :: sometno_init + ! Component whose type default init is overridden by + ! default init for the component. + type(t0) :: somet0_2 = t0(33) + ! Array component with a derived type that has default init + type(t0) :: somet0_array + end type + + ! Test type that extends type with default init. + type, extends(t0) :: textendst0 + integer :: l + end type + + ! Test type with default init in equivalences + type tseq + sequence + integer :: i = 2 + integer :: j = 3 + end type + + ! Test scalar with default init + type(t0) :: at0 +! CHECK-LABEL: fir.global @_QMtinitEat0 : !fir.type<_QMtinitTt0{k:i32}> { + ! CHECK: %[[VAL_0:.*]] = arith.constant 66 : i32 + ! CHECK: %[[VAL_1:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> + ! 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}> + ! CHECK: fir.has_value %[[VAL_2]] : !fir.type<_QMtinitTt0{k:i32}> + + ! Test array with default init + type(t0) :: bt0(100) +! CHECK-LABEL: @_QMtinitEbt0 : !fir.array<100x!fir.type<_QMtinitTt0{k:i32}>> { + ! CHECK: %[[VAL_3:.*]] = arith.constant 66 : i32 + ! CHECK: %[[VAL_4:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> + ! 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}> + ! CHECK: %[[VAL_6:.*]] = fir.undefined !fir.array<100x!fir.type<_QMtinitTt0{k:i32}>> + ! 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}>> + ! CHECK: fir.has_value %[[VAL_7]] : !fir.array<100x!fir.type<_QMtinitTt0{k:i32}>> + + ! Test default init overridden by explicit init + type(t0) :: ct0 = t0(42) +! CHECK-LABEL: fir.global @_QMtinitEct0 : !fir.type<_QMtinitTt0{k:i32}> { + ! CHECK: %[[VAL_8:.*]] = arith.constant 42 : i32 + ! CHECK: %[[VAL_9:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> + ! 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}> + ! CHECK: fir.has_value %[[VAL_10]] : !fir.type<_QMtinitTt0{k:i32}> + + ! Test a non trivial derived type mixing all sorts of default initialization + type(t1) :: dt1 +! CHECK-LABEL: @_QMtinitEdt1 : !fir.type<_QMtinitTt1{{.*}}> { + ! CHECK-DAG: %[[VAL_11:.*]] = arith.constant 42 : i32 + ! CHECK-DAG: %[[VAL_12:.*]] = arith.constant 100 : index + ! CHECK-DAG: %[[VAL_13:.*]] = arith.constant 0 : index + ! CHECK-DAG: %[[VAL_14:.*]] = arith.constant 33 : i32 + ! CHECK-DAG: %[[VAL_15:.*]] = arith.constant 66 : i32 + ! CHECK: %[[VAL_16:.*]] = fir.undefined !fir.type<_QMtinitTt1{{.*}}> + ! CHECK: %[[VAL_17:.*]] = fir.insert_value %[[VAL_16]], %[[VAL_11]], ["i", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, i32) -> !fir.type<_QMtinitTt1{{.*}}> + ! CHECK: %[[VAL_18:.*]] = fir.undefined i32 + ! CHECK: %[[VAL_19:.*]] = fir.insert_value %[[VAL_17]], %[[VAL_18]], ["j", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, i32) -> !fir.type<_QMtinitTt1{{.*}}> + ! CHECK: %[[VAL_20:.*]] = fir.address_of(@_QMtinitEziel) : !fir.ref> + ! CHECK: %[[VAL_21:.*]] = fir.shape %[[VAL_12]] : (index) -> !fir.shape<1> + ! CHECK: %[[VAL_22:.*]] = fir.embox %[[VAL_20]](%[[VAL_21]]) : (!fir.ref>, !fir.shape<1>) -> !fir.box>> + ! CHECK: %[[VAL_23:.*]] = fir.insert_value %[[VAL_19]], %[[VAL_22]], ["x", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.box>>) -> !fir.type<_QMtinitTt1{{.*}}> + ! CHECK: %[[VAL_24:.*]] = fir.zero_bits !fir.ptr> + ! CHECK: %[[VAL_25:.*]] = fir.shape %[[VAL_13]] : (index) -> !fir.shape<1> + ! CHECK: %[[VAL_26:.*]] = fir.embox %[[VAL_24]](%[[VAL_25]]) : (!fir.ptr>, !fir.shape<1>) -> !fir.box>> + ! CHECK: %[[VAL_27:.*]] = fir.insert_value %[[VAL_23]], %[[VAL_26]], ["y", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.box>>) -> !fir.type<_QMtinitTt1{{.*}}> + ! CHECK: %[[VAL_28:.*]] = fir.insert_value %[[VAL_27]], %[[VAL_26]], ["z", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.box>>) -> !fir.type<_QMtinitTt1{{.*}}> + ! CHECK: %[[VAL_29:.*]] = fir.string_lit "hello "(10) : !fir.char<1,10> + ! CHECK: %[[VAL_30:.*]] = fir.insert_value %[[VAL_28]], %[[VAL_29]], ["c1", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.char<1,10>) -> !fir.type<_QMtinitTt1{{.*}}> + ! CHECK: %[[VAL_31:.*]] = fir.undefined !fir.char<1,10> + ! CHECK: %[[VAL_32:.*]] = fir.insert_value %[[VAL_30]], %[[VAL_31]], ["c2", !fir.type<_QMtinitTt1{{.*}}>] : (!fir.type<_QMtinitTt1{{.*}}>, !fir.char<1,10>) -> !fir.type<_QMtinitTt1{{.*}}> + ! CHECK: %[[VAL_33:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> + ! 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}> + ! 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{{.*}}> + ! CHECK: %[[VAL_36:.*]] = fir.undefined !fir.type<_QMtinitTtno_init{k:i32}> + ! 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{{.*}}> + ! 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}> + ! 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{{.*}}> + ! 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{{.*}}> + ! CHECK: fir.has_value %[[VAL_40]] : !fir.type<_QMtinitTt1{{.*}}> + + ! Test a type extending other type with a default init + type(textendst0) :: etextendst0 +! CHECK-LABEL: @_QMtinitEetextendst0 : !fir.type<_QMtinitTtextendst0{k:i32,l:i32}> { + ! CHECK: %[[VAL_42:.*]] = arith.constant 66 : i32 + ! CHECK: %[[VAL_43:.*]] = fir.undefined !fir.type<_QMtinitTtextendst0{k:i32,l:i32}> + ! 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}> + ! CHECK: %[[VAL_45:.*]] = fir.undefined i32 + ! 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}> + ! CHECK: fir.has_value %[[VAL_46]] : !fir.type<_QMtinitTtextendst0{k:i32,l:i32}> +end module + + +! Test that default initialization is also applied to saved variables +subroutine saved() + use tinit + type(t0), save :: savedt0 +! CHECK-LABEL: fir.global internal @_QFsavedEsavedt0 : !fir.type<_QMtinitTt0{k:i32}> { + ! CHECK: %[[VAL_47:.*]] = arith.constant 66 : i32 + ! CHECK: %[[VAL_48:.*]] = fir.undefined !fir.type<_QMtinitTt0{k:i32}> + ! 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}> + ! CHECK: fir.has_value %[[VAL_49]] : !fir.type<_QMtinitTt0{k:i32}> +end subroutine + +! Test default initialization in equivalences +subroutine eqv() + use tinit + type(tseq), save :: somet + integer :: i(2) + equivalence (somet, i) +! CHECK-LABEL: fir.global internal @_QFeqvEi : !fir.array<2xi32> { + ! CHECK-DAG: %[[VAL_50:.*]] = arith.constant 2 : i32 + ! CHECK-DAG: %[[VAL_51:.*]] = arith.constant 3 : i32 + ! CHECK: %[[VAL_52:.*]] = fir.undefined !fir.array<2xi32> + ! CHECK: %[[VAL_53:.*]] = fir.insert_value %[[VAL_52]], %[[VAL_50]], [0 : index] : (!fir.array<2xi32>, i32) -> !fir.array<2xi32> + ! CHECK: %[[VAL_54:.*]] = fir.insert_value %[[VAL_53]], %[[VAL_51]], [1 : index] : (!fir.array<2xi32>, i32) -> !fir.array<2xi32> + ! CHECK: fir.has_value %[[VAL_54]] : !fir.array<2xi32> +end subroutine + +subroutine eqv_explicit_init() + use tinit + type(tseq), save :: somet + integer :: i(2) = [4, 5] + equivalence (somet, i) +! CHECK-LABEL: fir.global internal @_QFeqv_explicit_initEi : !fir.array<2xi32> { + ! CHECK-DAG: %[[VAL_57:.*]] = arith.constant 4 : i32 + ! CHECK-DAG: %[[VAL_58:.*]] = arith.constant 5 : i32 + ! CHECK: %[[VAL_59:.*]] = fir.undefined !fir.array<2xi32> + ! CHECK: %[[VAL_60:.*]] = fir.insert_value %[[VAL_59]], %[[VAL_57]], [0 : index] : (!fir.array<2xi32>, i32) -> !fir.array<2xi32> + ! CHECK: %[[VAL_61:.*]] = fir.insert_value %[[VAL_60]], %[[VAL_58]], [1 : index] : (!fir.array<2xi32>, i32) -> !fir.array<2xi32> + ! CHECK: fir.has_value %[[VAL_61]] : !fir.array<2xi32> +end subroutine + +subroutine eqv_same_default_init() + use tinit + type(tseq), save :: somet1(2), somet2 + equivalence (somet1(1), somet2) +! CHECK-LABEL: fir.global internal @_QFeqv_same_default_initEsomet1 : !fir.array<2xi64> { + ! CHECK: %[[VAL_62:.*]] = arith.constant 12884901890 : i64 + ! CHECK: %[[VAL_63:.*]] = fir.undefined !fir.array<2xi64> + ! CHECK: %[[VAL_64:.*]] = fir.insert_on_range %[[VAL_63]], %[[VAL_62]] from (0) to (1) : (!fir.array<2xi64>, i64) -> !fir.array<2xi64> + ! CHECK: fir.has_value %[[VAL_64]] : !fir.array<2xi64> +end subroutine + +subroutine eqv_full_overlaps_with_explicit_init() + use tinit + type(tseq), save :: somet + integer, save :: link(4) + integer :: i(2) = [5, 6] + integer :: j(2) = [7, 8] + ! Equivalence: somet fully covered by explicit init. + ! i(1)=5 | i(2)=6 | - | - + ! - | somet%i | somet%j | + ! - | - | j(1)=7 | j(2)=8 + equivalence (i, link(1)) + equivalence (somet, link(2)) + equivalence (j, link(3)) +! CHECK-LABEL: fir.global internal @_QFeqv_full_overlaps_with_explicit_initEi : !fir.array<4xi32> { + ! CHECK-DAG: %[[VAL_73:.*]] = arith.constant 5 : i32 + ! CHECK-DAG: %[[VAL_74:.*]] = arith.constant 6 : i32 + ! CHECK-DAG: %[[VAL_75:.*]] = arith.constant 7 : i32 + ! CHECK-DAG: %[[VAL_76:.*]] = arith.constant 8 : i32 + ! CHECK-DAG: %[[VAL_77:.*]] = fir.undefined !fir.array<4xi32> + ! CHECK-DAG: %[[VAL_78:.*]] = fir.insert_value %[[VAL_77]], %[[VAL_73]], [0 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> + ! CHECK-DAG: %[[VAL_79:.*]] = fir.insert_value %[[VAL_78]], %[[VAL_74]], [1 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> + ! CHECK-DAG: %[[VAL_80:.*]] = fir.insert_value %[[VAL_79]], %[[VAL_75]], [2 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> + ! CHECK-DAG: %[[VAL_81:.*]] = fir.insert_value %[[VAL_80]], %[[VAL_76]], [3 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> + ! CHECK-DAG: fir.has_value %[[VAL_81]] : !fir.array<4xi32> +end subroutine + +subroutine eqv_partial_overlaps_with_explicit_init() + use tinit + type(tseq), save :: somet + integer, save :: link(4) + integer :: i(2) = [5, 6] + integer :: j = 7 + ! `somet` is only partially covered by explicit init, somet%j default + ! init value should be used in the equiv storage init to match nvfortran, + ! ifort, and nagfor behavior (gfortran refuses this code). 19.5.3.4 point + ! 10 specifies that explicit initialization overrides default initialization. + ! i(1)=5 | i(2)=6 | - | - + ! - | somet%i | somet%j | + ! - | - | - | j=7 + equivalence (i, link(1)) + equivalence (somet, link(2)) + equivalence (j, link(4)) +! CHECK-LABEL: fir.global internal @_QFeqv_partial_overlaps_with_explicit_initEi : !fir.array<4xi32> + ! CHECK-DAG: %[[VAL_82:.*]] = arith.constant 5 : i32 + ! CHECK-DAG: %[[VAL_83:.*]] = arith.constant 6 : i32 + ! CHECK-DAG: %[[VAL_84:.*]] = arith.constant 3 : i32 + ! CHECK-DAG: %[[VAL_85:.*]] = arith.constant 7 : i32 + ! CHECK: %[[VAL_86:.*]] = fir.undefined !fir.array<4xi32> + ! CHECK: %[[VAL_87:.*]] = fir.insert_value %[[VAL_86]], %[[VAL_82]], [0 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> + ! CHECK: %[[VAL_88:.*]] = fir.insert_value %[[VAL_87]], %[[VAL_83]], [1 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> + ! CHECK: %[[VAL_89:.*]] = fir.insert_value %[[VAL_88]], %[[VAL_84]], [2 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> + ! CHECK: %[[VAL_90:.*]] = fir.insert_value %[[VAL_89]], %[[VAL_85]], [3 : index] : (!fir.array<4xi32>, i32) -> !fir.array<4xi32> + ! CHECK: fir.has_value %[[VAL_90]] : !fir.array<4xi32> +end subroutine diff --git a/flang/test/Lower/global-format-strings.f90 b/flang/test/Lower/global-format-strings.f90 new file mode 100644 --- /dev/null +++ b/flang/test/Lower/global-format-strings.f90 @@ -0,0 +1,14 @@ +! RUN: bbc -emit-fir -o - %s | FileCheck %s + +! Test checks whether the text of the format statement is hashconed into a +! global similar to a CHARACTER literal and then referenced. + +program other + write(10, 1008) + ! CHECK: fir.address_of(@{{.*}}) : +1008 format('ok') +end +! CHECK-LABEL: fir.global linkonce @_QQcl.28276F6B2729 constant +! CHECK: %[[lit:.*]] = fir.string_lit "('ok')"(6) : !fir.char<1,6> +! CHECK: fir.has_value %[[lit]] : !fir.char<1,6> +! CHECK: } diff --git a/flang/test/Lower/global-initialization.f90 b/flang/test/Lower/global-initialization.f90 new file mode 100644 --- /dev/null +++ b/flang/test/Lower/global-initialization.f90 @@ -0,0 +1,43 @@ +! RUN: bbc %s -o - | FileCheck %s + +program bar +! CHECK: fir.address_of(@[[name1:.*]]my_data) + integer, save :: my_data = 1 + print *, my_data +contains + +! CHECK-LABEL: func @_QFPfoo +subroutine foo() +! CHECK: fir.address_of(@[[name2:.*foo.*my_data]]) + integer, save :: my_data = 2 + print *, my_data + 1 +end subroutine + +! CHECK-LABEL: func @_QFPfoo2 +subroutine foo2() +! CHECK: fir.address_of(@[[name3:.*foo2.*my_data]]) + integer, save :: my_data + my_data = 4 + print *, my_data +end subroutine + +! CHECK-LABEL: func @_QFPfoo3 +subroutine foo3() +! CHECK-DAG: fir.address_of(@[[name4:.*foo3.*idata]]){{.*}}fir.array<5xi32> +! CHECK-DAG: fir.address_of(@[[name5:.*foo3.*rdata]]){{.*}}fir.array<3xf16> +! CHECK-DAG: fir.address_of(@[[name6:.*foo3.*my_data]]){{.*}}fir.array<2x4xi64> + integer*4, dimension(5), save :: idata = (/ (i*i, i=1,5) /) + integer*8, dimension(2, 10:13), save :: my_data = reshape((/1,2,3,4,5,6,7,8/), shape(my_data)) + real*2, dimension(7:9), save :: rdata = (/100., 99., 98./) + print *, rdata(9) + print *, idata(3) + print *, my_data(1,11) +end subroutine +end program + +! CHECK: fir.global internal @[[name1]] +! CHECK: fir.global internal @[[name2]] +! CHECK: fir.global internal @[[name3]] +! CHECK-DAG: fir.global internal @[[name4]]{{.*}}fir.array<5xi32> +! CHECK-DAG: fir.global internal @[[name5]]{{.*}}fir.array<3xf16> +! CHECK-DAG: fir.global internal @[[name6]]{{.*}}fir.array<2x4xi64>