derek.holloway
7502bf64a4
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70 lines
3.3 KiB
Fortran
70 lines
3.3 KiB
Fortran
! Test character_pointer => NULL()
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! The main point is to check that non deferred length parameter is preserved
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! inside the descriptor, and that the length is otherwise set to zero.
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! RUN: %flang_fc1 -emit-hlfir %s -o - | FileCheck %s
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subroutine test_deferred(p)
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character(:), pointer :: p
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p => null()
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end subroutine
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subroutine test_cst(p)
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character(10), pointer :: p
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p => null()
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end subroutine
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subroutine test_explicit(p, n)
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integer(8) :: n
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character(n), pointer :: p
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p => null()
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end subroutine
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subroutine test_assumed(p)
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character(*), pointer :: p
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p => null()
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end subroutine
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subroutine test_deferred_comp(p)
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type t
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character(:), pointer :: p
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end type
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type(t) :: x
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x%p => null()
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end subroutine
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subroutine test_explicit_comp(p)
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type t
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character(10), pointer :: p
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end type
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type(t) :: x
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x%p => null()
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end subroutine
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! CHECK-LABEL: func.func @_QPtest_deferred(
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! CHECK: %[[ZERO_BITS_0:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,?>>
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! CHECK: %[[CONSTANT_0:.*]] = arith.constant 0 : index
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! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[ZERO_BITS_0]] typeparams %[[CONSTANT_0]] : (!fir.ptr<!fir.char<1,?>>, index) -> !fir.box<!fir.ptr<!fir.char<1,?>>>
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! CHECK-LABEL: func.func @_QPtest_cst(
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! CHECK: %[[ZERO_BITS_0:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,10>>
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! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[ZERO_BITS_0]] : (!fir.ptr<!fir.char<1,10>>) -> !fir.box<!fir.ptr<!fir.char<1,10>>>
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! CHECK-LABEL: func.func @_QPtest_explicit(
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! CHECK: %[[LOAD_0:.*]] = fir.load %{{.*}} : !fir.ref<i64>
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! CHECK: %[[SELECT_0:.*]] = arith.select %{{.*}}, %[[LOAD_0]], %c0{{.*}} : i64
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! CHECK: %[[ZERO_BITS_0:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,?>>
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! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[ZERO_BITS_0]] typeparams %[[SELECT_0]] : (!fir.ptr<!fir.char<1,?>>, i64) -> !fir.box<!fir.ptr<!fir.char<1,?>>>
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! CHECK-LABEL: func.func @_QPtest_assumed(
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! CHECK: %[[LOAD_0:.*]] = fir.load %[[ARG0:.*]] : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>
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! CHECK: %[[BOX_ELESIZE_0:.*]] = fir.box_elesize %[[LOAD_0]] : (!fir.box<!fir.ptr<!fir.char<1,?>>>) -> index
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! CHECK: %[[DECLARE_0:.*]]:2 = hlfir.declare %[[ARG0]]
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! CHECK: %[[ZERO_BITS_0:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,?>>
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! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[ZERO_BITS_0]] typeparams %[[BOX_ELESIZE_0]] : (!fir.ptr<!fir.char<1,?>>, index) -> !fir.box<!fir.ptr<!fir.char<1,?>>>
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! CHECK-LABEL: func.func @_QPtest_deferred_comp(
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! CHECK: %[[ZERO_BITS_0:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,?>>
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! CHECK: %[[CONSTANT_0:.*]] = arith.constant 0 : index
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! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[ZERO_BITS_0]] typeparams %[[CONSTANT_0]] : (!fir.ptr<!fir.char<1,?>>, index) -> !fir.box<!fir.ptr<!fir.char<1,?>>>
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! CHECK: fir.store %[[EMBOX_0]] to %{{.*}} : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,?>>>>
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! CHECK-LABEL: func.func @_QPtest_explicit_comp(
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! CHECK: %[[ZERO_BITS_0:.*]] = fir.zero_bits !fir.ptr<!fir.char<1,10>>
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! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[ZERO_BITS_0]] : (!fir.ptr<!fir.char<1,10>>) -> !fir.box<!fir.ptr<!fir.char<1,10>>>
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! CHECK: fir.store %[[EMBOX_0]] to %{{.*}} : !fir.ref<!fir.box<!fir.ptr<!fir.char<1,10>>>>
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