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[Flang]: Fix to bind(C) procs inside BLOCK construct #82483

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Merged
merged 1 commit into from
Feb 21, 2024
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[Flang]: Fix to bind(C) procs inside BLOCK construct #82483

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3 changes: 2 additions & 1 deletion flang/lib/Lower/Mangler.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -182,7 +182,8 @@ Fortran::lower::mangle::mangleName(const Fortran::semantics::Symbol &symbol,
bool underscoring) {
assert((symbol.owner().kind() !=
Fortran::semantics::Scope::Kind::BlockConstruct ||
symbol.has<Fortran::semantics::SubprogramDetails>()) &&
symbol.has<Fortran::semantics::SubprogramDetails>() ||
Fortran::semantics::IsBindCProcedure(symbol)) &&
"block object mangling must specify a scopeBlockIdMap");
ScopeBlockIdMap scopeBlockIdMap;
return mangleName(symbol, scopeBlockIdMap, keepExternalInScope, underscoring);
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20 changes: 20 additions & 0 deletions flang/test/Lower/HLFIR/block_bindc_pocs.f90
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@@ -0,0 +1,20 @@
! This test checks bind(c) procs inside BLOCK construct.

!RUN: %flang_fc1 -emit-hlfir %s -o - | FileCheck %s

module m
interface
subroutine test_proc() bind(C)
end subroutine test_proc
end interface
end module m
!CHECK-DAG: %[[S0:.*]] = fir.call @llvm.stacksave.p0() fastmath<contract> : () -> !fir.ref<i8>
!CHECK-DAG: fir.call @test_proc() fastmath<contract> : () -> ()
!CHECK-DAG: fir.call @llvm.stackrestore.p0(%[[S0]]) fastmath<contract> : (!fir.ref<i8>) -> ()
!CHECK-DAG: func.func private @test_proc() attributes {fir.bindc_name = "test_proc"}
subroutine test
BLOCK
use m
call test_proc
END BLOCK
end subroutine test