1710c8cf0f
The lowering produces fir.dummy_scope operation if the current function has dummy arguments. Each hlfir.declare generated for a dummy argument is then using the result of fir.dummy_scope as its dummy_scope operand. This is only done for HLFIR. I was not able to find a reliable way to identify dummy symbols in `genDeclareSymbol`, so I added a set of registered dummy symbols that is alive during the variables instantiation for the current function. The set is initialized during the mapping of the dummy argument symbols to their MLIR values. It is reset right after all variables are instantiated - this is done to avoid generating hlfir.declare operations with dummy_scope for the clones of the dummy symbols (e.g. this happens with OpenMP privatization). If this can be done in a cleaner way, please advise.
26 lines
1.5 KiB
Fortran
26 lines
1.5 KiB
Fortran
! Test lowering of transformational intrinsic to HLFIR what matters here
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! is not to test each transformational, but to check how their
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! lowering interfaces with the rest of lowering.
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! RUN: bbc -emit-hlfir -o - %s | FileCheck %s
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subroutine test_transformational_implemented_with_runtime_allocation(x)
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real :: x(10, 10)
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! MINLOC result is allocated inside the runtime and returned in
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! a descriptor that was passed by reference to the runtime.
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! Lowering goes via a hlfir.minloc intrinsic.
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! After bufferization, this will allow the buffer created by the
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! runtime to be passed to takes_array_arg without creating any
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! other temporaries and to be deallocated after the call.
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call takes_array_arg(minloc(x))
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end subroutine
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! CHECK-LABEL: func.func @_QPtest_transformational_implemented_with_runtime_allocation(
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! CHECK-SAME: %[[ARG0:.*]]: !fir.ref<!fir.array<10x10xf32>> {fir.bindc_name = "x"}) {
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! CHECK: %[[VAL_1:.*]]:2 = hlfir.declare %[[ARG0]](%{{.*}}) dummy_scope %{{[0-9]+}} {uniq_name = "_QFtest_transformational_implemented_with_runtime_allocationEx"}
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! CHECK: %[[VAL_2:.*]] = hlfir.minloc %[[VAL_1]]#0
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! CHECK: %[[VAL_3:.*]] = hlfir.shape_of %[[VAL_2]]
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! CHECK: %[[VAL_4:.*]]:3 = hlfir.associate %[[VAL_2]](%[[VAL_3]]) {adapt.valuebyref}
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! CHECK: fir.call @_QPtakes_array_arg(%[[VAL_4]]#1)
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! CHECK: hlfir.end_associate %[[VAL_4]]#1, %[[VAL_4]]#2 : !fir.ref<!fir.array<2xi32>>, i1
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! CHECK: hlfir.destroy %[[VAL_2]] : !hlfir.expr<2xi32>
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