forked from OSchip/llvm-project
157 lines
7.4 KiB
Fortran
157 lines
7.4 KiB
Fortran
!===-- module/iso_fortran_env.f90 ------------------------------------------===!
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!
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! Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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! See https://llvm.org/LICENSE.txt for license information.
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! SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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!
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!===------------------------------------------------------------------------===!
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! See Fortran 2018, clause 16.10.2
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! TODO: These are placeholder values so that some tests can be run.
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include '../runtime/magic-numbers.h' ! for IOSTAT= error/end code values
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module iso_fortran_env
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use __Fortran_builtins, only: &
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event_type => __builtin_event_type, &
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lock_type => __builtin_lock_type, &
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team_type => __builtin_team_type
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implicit none
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integer, parameter :: atomic_int_kind = selected_int_kind(18)
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integer, parameter :: atomic_logical_kind = atomic_int_kind
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! TODO: Use PACK([x],test) in place of the array constructor idiom
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! [(x, integer::j=1,COUNT([test]))] below once PACK() can be folded.
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integer, parameter, private :: &
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selectedASCII = selected_char_kind('ASCII'), &
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selectedUCS_2 = selected_char_kind('UCS-2'), &
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selectedUnicode = selected_char_kind('ISO_10646')
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integer, parameter :: character_kinds(*) = [ &
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[(selectedASCII, integer :: j=1, count([selectedASCII >= 0]))], &
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[(selectedUCS_2, integer :: j=1, count([selectedUCS_2 >= 0]))], &
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[(selectedUnicode, integer :: j=1, count([selectedUnicode >= 0]))]]
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integer, parameter, private :: &
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selectedInt8 = selected_int_kind(2), &
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selectedInt16 = selected_int_kind(4), &
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selectedInt32 = selected_int_kind(9), &
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selectedInt64 = selected_int_kind(18),&
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selectedInt128 = selected_int_kind(38), &
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safeInt8 = merge(selectedInt8, selected_int_kind(0), &
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selectedInt8 >= 0), &
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safeInt16 = merge(selectedInt16, selected_int_kind(0), &
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selectedInt16 >= 0), &
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safeInt32 = merge(selectedInt32, selected_int_kind(0), &
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selectedInt32 >= 0), &
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safeInt64 = merge(selectedInt64, selected_int_kind(0), &
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selectedInt64 >= 0), &
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safeInt128 = merge(selectedInt128, selected_int_kind(0), &
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selectedInt128 >= 0)
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integer, parameter :: &
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int8 = merge(selectedInt8, merge(-2, -1, selectedInt8 >= 0), &
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digits(int(0,kind=safeInt8)) == 7), &
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int16 = merge(selectedInt16, merge(-2, -1, selectedInt16 >= 0), &
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digits(int(0,kind=safeInt16)) == 15), &
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int32 = merge(selectedInt32, merge(-2, -1, selectedInt32 >= 0), &
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digits(int(0,kind=safeInt32)) == 31), &
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int64 = merge(selectedInt64, merge(-2, -1, selectedInt64 >= 0), &
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digits(int(0,kind=safeInt64)) == 63), &
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int128 = merge(selectedInt128, merge(-2, -1, selectedInt128 >= 0), &
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digits(int(0,kind=safeInt128)) == 127)
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integer, parameter :: integer_kinds(*) = [ &
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selected_int_kind(0), &
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((selected_int_kind(k), &
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integer :: j=1, count([selected_int_kind(k) >= 0 .and. &
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selected_int_kind(k) /= &
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selected_int_kind(k-1)])), &
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integer :: k=1, 39)]
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integer, parameter :: &
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logical8 = int8, logical16 = int16, logical32 = int32, logical64 = int64
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integer, parameter :: logical_kinds(*) = [ &
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[(logical8, integer :: j=1, count([logical8 >= 0]))], &
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[(logical16, integer :: j=1, count([logical16 >= 0]))], &
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[(logical32, integer :: j=1, count([logical32 >= 0]))], &
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[(logical64, integer :: j=1, count([logical64 >= 0]))]]
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integer, parameter, private :: &
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selectedReal16 = selected_real_kind(3, 4), & ! IEEE half
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selectedBfloat16 = selected_real_kind(2, 37), & ! truncated IEEE single
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selectedReal32 = selected_real_kind(6, 37), & ! IEEE single
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selectedReal64 = selected_real_kind(15, 307), & ! IEEE double
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selectedReal80 = selected_real_kind(18, 4931), & ! 80x87 extended
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selectedReal64x2 = selected_real_kind(31, 307), & ! "double-double"
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selectedReal128 = selected_real_kind(33, 4931), & ! IEEE quad
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safeReal16 = merge(selectedReal16, selected_real_kind(0,0), &
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selectedReal16 >= 0), &
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safeBfloat16 = merge(selectedBfloat16, selected_real_kind(0,0), &
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selectedBfloat16 >= 0), &
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safeReal32 = merge(selectedReal32, selected_real_kind(0,0), &
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selectedReal32 >= 0), &
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safeReal64 = merge(selectedReal64, selected_real_kind(0,0), &
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selectedReal64 >= 0), &
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safeReal80 = merge(selectedReal80, selected_real_kind(0,0), &
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selectedReal80 >= 0), &
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safeReal64x2 = merge(selectedReal64x2, selected_real_kind(0,0), &
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selectedReal64x2 >= 0), &
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safeReal128 = merge(selectedReal128, selected_real_kind(0,0), &
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selectedReal128 >= 0)
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integer, parameter :: &
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real16 = merge(selectedReal16, merge(-2, -1, selectedReal16 >= 0), &
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digits(real(0,kind=safeReal16)) == 11), &
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bfloat16 = merge(selectedBfloat16, merge(-2, -1, selectedBfloat16 >= 0), &
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digits(real(0,kind=safeBfloat16)) == 8), &
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real32 = merge(selectedReal32, merge(-2, -1, selectedReal32 >= 0), &
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digits(real(0,kind=safeReal32)) == 24), &
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real64 = merge(selectedReal64, merge(-2, -1, selectedReal64 >= 0), &
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digits(real(0,kind=safeReal64)) == 53), &
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real80 = merge(selectedReal80, merge(-2, -1, selectedReal80 >= 0), &
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digits(real(0,kind=safeReal80)) == 64), &
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real64x2 = merge(selectedReal64x2, merge(-2, -1, selectedReal64x2 >= 0), &
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digits(real(0,kind=safeReal64x2)) == 106), &
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real128 = merge(selectedReal128, merge(-2, -1, selectedReal128 >= 0), &
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digits(real(0,kind=safeReal128)) == 113)
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integer, parameter :: real_kinds(*) = [ &
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[(real16, integer :: j=1, count([real16 >= 0]))], &
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[(bfloat16, integer :: j=1, count([bfloat16 >= 0]))], &
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[(real32, integer :: j=1, count([real32 >= 0]))], &
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[(real64, integer :: j=1, count([real64 >= 0]))], &
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[(real80, integer :: j=1, count([real80 >= 0]))], &
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[(real64x2, integer :: j=1, count([real64x2 >= 0]))], &
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[(real128, integer :: j=1, count([real128 >= 0]))]]
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integer, parameter :: current_team = -1, initial_team = -2, parent_team = -3
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integer, parameter :: input_unit = 5, output_unit = 6
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integer, parameter :: error_unit = output_unit
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integer, parameter :: iostat_end = -1, iostat_eor = -2
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integer, parameter :: iostat_inquire_internal_unit = -1
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integer, parameter :: character_storage_size = 8
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integer, parameter :: file_storage_size = 8
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integer, parameter :: numeric_storage_size = 32
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integer, parameter :: stat_failed_image = FORTRAN_RUNTIME_STAT_FAILED_IMAGE
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integer, parameter :: stat_locked = FORTRAN_RUNTIME_STAT_LOCKED
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integer, parameter :: stat_locked_other_image = FORTRAN_RUNTIME_STAT_LOCKED_OTHER_IMAGE
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integer, parameter :: stat_stopped_image = FORTRAN_RUNTIME_STAT_STOPPED_IMAGE
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integer, parameter :: stat_unlocked = FORTRAN_RUNTIME_STAT_UNLOCKED
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integer, parameter :: stat_unlocked_failed_image = FORTRAN_RUNTIME_STAT_UNLOCKED_FAILED_IMAGE
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contains
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character(len=80) function compiler_options()
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compiler_options = 'COMPILER_OPTIONS() not yet implemented'
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end function compiler_options
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character(len=80) function compiler_version()
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compiler_version = 'f18 in development'
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end function compiler_version
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end module iso_fortran_env
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