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[flang] Add lowering C interoperability test
This patch adds a lowering test for the C interoperability. This patch is part of the upstreaming effort from fir-dev branch. Reviewed By: PeteSteinfeld Differential Revision: https://reviews.llvm.org/D122307 Co-authored-by: Eric Schweitz <eschweitz@nvidia.com>
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! RUN: bbc %s -o - | FileCheck %s | ||
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! CHECK-LABEL: fir.global @_QMc_interoperability_testEthis_thing : !fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}> { | ||
! CHECK: %[[VAL_0:.*]] = arith.constant 0 : i64 | ||
! CHECK: %[[VAL_1:.*]] = fir.undefined !fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}> | ||
! CHECK: %[[VAL_2:.*]] = fir.undefined !fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}> | ||
! CHECK: %[[VAL_3:.*]] = fir.insert_value %[[VAL_2]], %[[VAL_0]], ["__address", !fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>] : (!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>, i64) -> !fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}> | ||
! CHECK: %[[VAL_4:.*]] = fir.insert_value %[[VAL_1]], %[[VAL_3]], ["cptr", !fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>] : (!fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>, !fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>) -> !fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}> | ||
! CHECK: fir.has_value %[[VAL_4]] : !fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}> | ||
! CHECK: } | ||
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! CHECK-LABEL: func @_QMc_interoperability_testPget_a_thing() -> !fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}> { | ||
! CHECK: %[[VAL_2:.*]] = fir.alloca !fir.box<!fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>> | ||
! CHECK: %[[VAL_3:.*]] = fir.address_of(@_QMc_interoperability_testEthis_thing) : !fir.ref<!fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>> | ||
! CHECK: %[[VAL_4:.*]] = fir.alloca !fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}> {bindc_name = "get_a_thing", uniq_name = "_QMc_interoperability_testFget_a_thingEget_a_thing"} | ||
! CHECK: %[[VAL_5:.*]] = fir.embox %[[VAL_4]] : (!fir.ref<!fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>>) -> !fir.box<!fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>> | ||
! CHECK: %[[VAL_10:.*]] = fir.embox %[[VAL_3]] : (!fir.ref<!fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>>) -> !fir.box<!fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}>> | ||
! CHECK: return %{{.*}} : !fir.type<_QMc_interoperability_testTthing_with_pointer{cptr:!fir.type<_QM__fortran_builtinsT__builtin_c_ptr{__address:i64}>}> | ||
! CHECK: } | ||
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module c_interoperability_test | ||
use iso_c_binding, only: c_ptr, c_null_ptr | ||
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type thing_with_pointer | ||
type(c_ptr) :: cptr = c_null_ptr | ||
end type thing_with_pointer | ||
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type(thing_with_pointer) :: this_thing | ||
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contains | ||
function get_a_thing() | ||
type(thing_with_pointer) :: get_a_thing | ||
get_a_thing = this_thing | ||
end function get_a_thing | ||
end module c_interoperability_test |
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