[flang] [llvm] [flang] implement show_descriptor intrinsic, a non-standard extension (PR #169137)
Valery Dmitriev via llvm-commits
llvm-commits at lists.llvm.org
Fri Nov 21 16:51:57 PST 2025
https://github.com/valerydmit created https://github.com/llvm/llvm-project/pull/169137
None
>From e690b765debab0fd0889568b9dee2609797888ce Mon Sep 17 00:00:00 2001
From: Valery Dmitriev <valeryd at nvidia.com>
Date: Fri, 21 Nov 2025 16:29:03 -0800
Subject: [PATCH] [flang] implement show_descriptor intrinsic, a non-standard
extension
---
.../include/flang-rt/runtime/descriptor.h | 4 +-
flang-rt/lib/runtime/descriptor.cpp | 162 +++++++++++-
flang-rt/lib/runtime/extensions.cpp | 9 +
.../flang/Optimizer/Builder/IntrinsicCall.h | 1 +
.../Optimizer/Builder/Runtime/Intrinsics.h | 3 +
flang/include/flang/Runtime/extensions.h | 3 +
flang/lib/Evaluate/intrinsics.cpp | 2 +
flang/lib/Optimizer/Builder/IntrinsicCall.cpp | 16 ++
.../Optimizer/Builder/Runtime/Intrinsics.cpp | 7 +
.../test/Lower/Intrinsics/show_descriptor.f90 | 236 ++++++++++++++++++
10 files changed, 437 insertions(+), 6 deletions(-)
create mode 100644 flang/test/Lower/Intrinsics/show_descriptor.f90
diff --git a/flang-rt/include/flang-rt/runtime/descriptor.h b/flang-rt/include/flang-rt/runtime/descriptor.h
index ff7ec050d32c7..9ee5c1ac71db0 100644
--- a/flang-rt/include/flang-rt/runtime/descriptor.h
+++ b/flang-rt/include/flang-rt/runtime/descriptor.h
@@ -510,7 +510,9 @@ class Descriptor {
RT_API_ATTRS void Check() const;
- void Dump(FILE * = stdout) const;
+ // When dumpRawType, dumps stringified CFI_type_*, otherwise
+ // try to canonicalize and pront as a Fortran type.
+ void Dump(FILE * = stdout, bool dumpRawType = true) const;
RT_API_ATTRS inline bool HasAddendum() const {
return raw_.extra & _CFI_ADDENDUM_FLAG;
diff --git a/flang-rt/lib/runtime/descriptor.cpp b/flang-rt/lib/runtime/descriptor.cpp
index 5ede5f9d9f9ed..5a35ea8e2a11b 100644
--- a/flang-rt/lib/runtime/descriptor.cpp
+++ b/flang-rt/lib/runtime/descriptor.cpp
@@ -292,14 +292,166 @@ RT_API_ATTRS void Descriptor::Check() const {
// TODO
}
-void Descriptor::Dump(FILE *f) const {
+static const char *GetTypeStr(ISO::CFI_type_t type, bool dumpRawType) {
+ if (dumpRawType) {
+#define CASE(x) case (x): return #x;
+ switch (type) {
+ CASE(CFI_type_signed_char)
+ CASE(CFI_type_short)
+ CASE(CFI_type_int)
+ CASE(CFI_type_long)
+ CASE(CFI_type_long_long)
+ CASE(CFI_type_size_t)
+ CASE(CFI_type_int8_t)
+ CASE(CFI_type_int16_t)
+ CASE(CFI_type_int32_t)
+ CASE(CFI_type_int64_t)
+ CASE(CFI_type_int128_t)
+ CASE(CFI_type_int_least8_t)
+ CASE(CFI_type_int_least16_t)
+ CASE(CFI_type_int_least32_t)
+ CASE(CFI_type_int_least64_t)
+ CASE(CFI_type_int_least128_t)
+ CASE(CFI_type_int_fast8_t)
+ CASE(CFI_type_int_fast16_t)
+ CASE(CFI_type_int_fast32_t)
+ CASE(CFI_type_int_fast64_t)
+ CASE(CFI_type_int_fast128_t)
+ CASE(CFI_type_intmax_t)
+ CASE(CFI_type_intptr_t)
+ CASE(CFI_type_ptrdiff_t)
+ CASE(CFI_type_half_float)
+ CASE(CFI_type_bfloat)
+ CASE(CFI_type_float)
+ CASE(CFI_type_double)
+ CASE(CFI_type_extended_double)
+ CASE(CFI_type_long_double)
+ CASE(CFI_type_float128)
+ CASE(CFI_type_half_float_Complex)
+ CASE(CFI_type_bfloat_Complex)
+ CASE(CFI_type_float_Complex)
+ CASE(CFI_type_double_Complex)
+ CASE(CFI_type_extended_double_Complex)
+ CASE(CFI_type_long_double_Complex)
+ CASE(CFI_type_float128_Complex)
+ CASE(CFI_type_Bool)
+ CASE(CFI_type_char)
+ CASE(CFI_type_cptr)
+ CASE(CFI_type_struct)
+ CASE(CFI_type_char16_t)
+ CASE(CFI_type_char32_t)
+ CASE(CFI_type_uint8_t)
+ CASE(CFI_type_uint16_t)
+ CASE(CFI_type_uint32_t)
+ CASE(CFI_type_uint64_t)
+ CASE(CFI_type_uint128_t)
+ }
+#undef CASE
+ return nullptr;
+ }
+ TypeCode code{type};
+
+ if (!code.IsValid())
+ return "invalid";
+
+ common::optional<std::pair<TypeCategory, int>> categoryAndKind =
+ code.GetCategoryAndKind();
+ if (!categoryAndKind)
+ return nullptr;
+
+ TypeCategory tcat;
+ int kind;
+ std::tie(tcat, kind) = *categoryAndKind;
+
+#define CASE(cat, k) \
+ case (k): \
+ return #cat "(kind=" #k ")";
+ switch (tcat) {
+ case TypeCategory::Integer:
+ switch (kind) {
+ CASE(INTEGER, 1)
+ CASE(INTEGER, 2)
+ CASE(INTEGER, 4)
+ CASE(INTEGER, 8)
+ CASE(INTEGER, 16)
+ }
+ break;
+ case TypeCategory::Unsigned:
+ switch (kind) {
+ CASE(UNSIGNED, 1)
+ CASE(UNSIGNED, 2)
+ CASE(UNSIGNED, 4)
+ CASE(UNSIGNED, 8)
+ CASE(UNSIGNED, 16)
+ }
+ break;
+ case TypeCategory::Real:
+ switch (kind) {
+ CASE(REAL, 2)
+ CASE(REAL, 3)
+ CASE(REAL, 4)
+ CASE(REAL, 8)
+ CASE(REAL, 10)
+ CASE(REAL, 16)
+ }
+ break;
+ case TypeCategory::Complex:
+ switch (kind) {
+ CASE(COMPLEX, 2)
+ CASE(COMPLEX, 3)
+ CASE(COMPLEX, 4)
+ CASE(COMPLEX, 8)
+ CASE(COMPLEX, 10)
+ CASE(COMPLEX, 16)
+ }
+ break;
+ case TypeCategory::Character:
+ switch (kind) {
+ CASE(CHARACTER, 1)
+ CASE(CHARACTER, 2)
+ CASE(CHARACTER, 4)
+ }
+ break;
+ case TypeCategory::Logical:
+ switch (kind) {
+ CASE(LOGICAL, 1)
+ CASE(LOGICAL, 2)
+ CASE(LOGICAL, 4)
+ CASE(LOGICAL, 8)
+ }
+ break;
+ case TypeCategory::Derived:
+ return "DERIVED";
+ }
+#undef CASE
+ return nullptr;
+}
+
+void Descriptor::Dump(FILE *f, bool dumpRawType) const {
std::fprintf(f, "Descriptor @ %p:\n", reinterpret_cast<const void *>(this));
std::fprintf(f, " base_addr %p\n", raw_.base_addr);
- std::fprintf(f, " elem_len %zd\n", static_cast<std::size_t>(raw_.elem_len));
+ std::fprintf(f, " elem_len %zd\n", ElementBytes());
std::fprintf(f, " version %d\n", static_cast<int>(raw_.version));
- std::fprintf(f, " rank %d\n", static_cast<int>(raw_.rank));
- std::fprintf(f, " type %d\n", static_cast<int>(raw_.type));
- std::fprintf(f, " attribute %d\n", static_cast<int>(raw_.attribute));
+ if (rank() > 0) {
+ std::fprintf(f, " rank %d\n", rank());
+ } else {
+ std::fprintf(f, " scalar\n");
+ }
+ int ty = static_cast<int>(raw_.type);
+ if (const char *tyStr = GetTypeStr(raw_.type, dumpRawType)) {
+ std::fprintf(f, " type %d \"%s\"\n", ty, tyStr);
+ } else {
+ std::fprintf(f, " type %d\n", ty);
+ }
+ int attr = static_cast<int>(raw_.attribute);
+ if (IsPointer()) {
+ std::fprintf(f, " attribute %d (pointer) \n", attr);
+ } else if (IsAllocatable()) {
+ std::fprintf(f, " attribute %d (allocatable)\n", attr);
+ } else {
+ std::fprintf(f, " attribute %d\n", attr);
+ }
+
std::fprintf(f, " extra %d\n", static_cast<int>(raw_.extra));
std::fprintf(f, " addendum %d\n", static_cast<int>(HasAddendum()));
std::fprintf(f, " alloc_idx %d\n", static_cast<int>(GetAllocIdx()));
diff --git a/flang-rt/lib/runtime/extensions.cpp b/flang-rt/lib/runtime/extensions.cpp
index 19e75143705ab..29bccc50aa7e9 100644
--- a/flang-rt/lib/runtime/extensions.cpp
+++ b/flang-rt/lib/runtime/extensions.cpp
@@ -398,6 +398,15 @@ std::int64_t RTNAME(time)() { return time(nullptr); }
// MCLOCK: returns accumulated CPU time in ticks
std::int32_t FORTRAN_PROCEDURE_NAME(mclock)() { return std::clock(); }
+void RTNAME(ShowDescriptor)(const char *descr) {
+ if (descr) {
+ reinterpret_cast<const Fortran::runtime::Descriptor *>(descr)->Dump(
+ stderr, /*dumpRawType=*/false);
+ } else {
+ std::fprintf(stderr, "NULL\n");
+ }
+}
+
// Extension procedures related to I/O
namespace io {
diff --git a/flang/include/flang/Optimizer/Builder/IntrinsicCall.h b/flang/include/flang/Optimizer/Builder/IntrinsicCall.h
index ce0b26c868701..31ebb15b40f04 100644
--- a/flang/include/flang/Optimizer/Builder/IntrinsicCall.h
+++ b/flang/include/flang/Optimizer/Builder/IntrinsicCall.h
@@ -408,6 +408,7 @@ struct IntrinsicLibrary {
template <typename Shift>
mlir::Value genShift(mlir::Type resultType, llvm::ArrayRef<mlir::Value>);
mlir::Value genShiftA(mlir::Type resultType, llvm::ArrayRef<mlir::Value>);
+ void genShowDescriptor(llvm::ArrayRef<fir::ExtendedValue>);
mlir::Value genSign(mlir::Type, llvm::ArrayRef<mlir::Value>);
mlir::Value genSind(mlir::Type, llvm::ArrayRef<mlir::Value>);
mlir::Value genSinpi(mlir::Type, llvm::ArrayRef<mlir::Value>);
diff --git a/flang/include/flang/Optimizer/Builder/Runtime/Intrinsics.h b/flang/include/flang/Optimizer/Builder/Runtime/Intrinsics.h
index 7a97172cfbb9a..b4bedc36ca88e 100644
--- a/flang/include/flang/Optimizer/Builder/Runtime/Intrinsics.h
+++ b/flang/include/flang/Optimizer/Builder/Runtime/Intrinsics.h
@@ -109,6 +109,9 @@ void genSleep(fir::FirOpBuilder &builder, mlir::Location loc,
mlir::Value genChdir(fir::FirOpBuilder &builder, mlir::Location loc,
mlir::Value name);
+/// generate dump of a descriptor
+void genShowDescriptor(fir::FirOpBuilder &builder, mlir::Location loc,
+ mlir::Value descriptor);
} // namespace runtime
} // namespace fir
diff --git a/flang/include/flang/Runtime/extensions.h b/flang/include/flang/Runtime/extensions.h
index 9fd3e118a0f22..5788ea2aa7606 100644
--- a/flang/include/flang/Runtime/extensions.h
+++ b/flang/include/flang/Runtime/extensions.h
@@ -101,5 +101,8 @@ int FORTRAN_PROCEDURE_NAME(mclock)();
float FORTRAN_PROCEDURE_NAME(secnds)(float *refTime);
float RTNAME(Secnds)(float *refTime, const char *sourceFile, int line);
+// Extension subroutine SHOW_DESCRIPTOR(D)
+void RTNAME(ShowDescriptor)(const char* descr);
+
} // extern "C"
#endif // FORTRAN_RUNTIME_EXTENSIONS_H_
diff --git a/flang/lib/Evaluate/intrinsics.cpp b/flang/lib/Evaluate/intrinsics.cpp
index 8f4204b1f9afe..45432ca01fec9 100644
--- a/flang/lib/Evaluate/intrinsics.cpp
+++ b/flang/lib/Evaluate/intrinsics.cpp
@@ -1701,6 +1701,8 @@ static const IntrinsicInterface intrinsicSubroutine[]{
{}, Rank::scalar, IntrinsicClass::impureSubroutine},
{"second", {{"time", DefaultReal, Rank::scalar}}, {}, Rank::scalar,
IntrinsicClass::impureSubroutine},
+ {"show_descriptor", {{"d", AnyData, Rank::anyOrAssumedRank}}, {},
+ Rank::elemental, IntrinsicClass::impureSubroutine},
{"system",
{{"command", DefaultChar, Rank::scalar},
{"exitstat", DefaultInt, Rank::scalar, Optionality::optional,
diff --git a/flang/lib/Optimizer/Builder/IntrinsicCall.cpp b/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
index 60dc02474faf6..660877bbfd34b 100644
--- a/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
+++ b/flang/lib/Optimizer/Builder/IntrinsicCall.cpp
@@ -710,6 +710,10 @@ static constexpr IntrinsicHandler handlers[]{
{"shifta", &I::genShiftA},
{"shiftl", &I::genShift<mlir::arith::ShLIOp>},
{"shiftr", &I::genShift<mlir::arith::ShRUIOp>},
+ {"show_descriptor",
+ &I::genShowDescriptor,
+ {{{"d", asBox}}},
+ /*isElemental=*/false},
{"sign", &I::genSign},
{"signal",
&I::genSignalSubroutine,
@@ -7814,6 +7818,18 @@ mlir::Value IntrinsicLibrary::genShiftA(mlir::Type resultType,
return result;
}
+void
+IntrinsicLibrary::genShowDescriptor(
+ llvm::ArrayRef<fir::ExtendedValue> args) {
+ assert(args.size() == 1);
+ const mlir::Value descriptor = fir::getBase(args[0]);
+
+ assert(fir::isa_box_type(descriptor.getType()) &&
+ "argument must have been lowered to box type");
+ // mlir::Value descrAddr = fir::BoxAddrOp::create(builder, loc, descriptor);
+ fir::runtime::genShowDescriptor(builder, loc, descriptor);
+}
+
// SIGNAL
void IntrinsicLibrary::genSignalSubroutine(
llvm::ArrayRef<fir::ExtendedValue> args) {
diff --git a/flang/lib/Optimizer/Builder/Runtime/Intrinsics.cpp b/flang/lib/Optimizer/Builder/Runtime/Intrinsics.cpp
index 110b1b20898c7..0317bc35c978f 100644
--- a/flang/lib/Optimizer/Builder/Runtime/Intrinsics.cpp
+++ b/flang/lib/Optimizer/Builder/Runtime/Intrinsics.cpp
@@ -461,3 +461,10 @@ mlir::Value fir::runtime::genChdir(fir::FirOpBuilder &builder,
fir::runtime::createArguments(builder, loc, func.getFunctionType(), name);
return fir::CallOp::create(builder, loc, func, args).getResult(0);
}
+
+void fir::runtime::genShowDescriptor(fir::FirOpBuilder &builder, mlir::Location loc,
+ mlir::Value descAddr) {
+ mlir::func::FuncOp func{
+ fir::runtime::getRuntimeFunc<mkRTKey(ShowDescriptor)>(loc, builder)};
+ fir::CallOp::create(builder, loc, func, descAddr);
+}
diff --git a/flang/test/Lower/Intrinsics/show_descriptor.f90 b/flang/test/Lower/Intrinsics/show_descriptor.f90
new file mode 100644
index 0000000000000..2eb648526582a
--- /dev/null
+++ b/flang/test/Lower/Intrinsics/show_descriptor.f90
@@ -0,0 +1,236 @@
+! RUN: bbc -emit-fir %s -o - | FileCheck %s
+
+subroutine test_int
+! CHECK-LABEL: func.func @_QPtest_int() {
+ implicit none
+ integer :: n
+ integer,allocatable :: a(:)
+ n = 5
+ allocate(a(n))
+! CHECK: %[[C3:.*]] = arith.constant 3 : index
+! CHECK: %[[C1:.*]] = arith.constant 1 : index
+! CHECK: %[[C5:.*]] = arith.constant 5 : i32
+! CHECK: %[[C0:.*]] = arith.constant 0 : index
+! CHECK: %[[DUMMY_SCOPE_0:.*]] = fir.dummy_scope : !fir.dscope
+! CHECK: %[[ALLOCA_0:.*]] = fir.alloca !fir.box<!fir.heap<!fir.array<?xi32>>> {bindc_name = "a", uniq_name = "_QFtest_intEa"}
+! CHECK: %[[ZERO_BITS_0:.*]] = fir.zero_bits !fir.heap<!fir.array<?xi32>>
+! CHECK: %[[SHAPE_0:.*]] = fir.shape %[[C0]] : (index) -> !fir.shape<1>
+! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[ZERO_BITS_0]](%[[SHAPE_0]]) : (!fir.heap<!fir.array<?xi32>>, !fir.shape<1>) -> !fir.box<!fir.heap<!fir.array<?xi32>>>
+! CHECK: fir.store %[[EMBOX_0]] to %[[ALLOCA_0]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
+! CHECK: %[[DECLARE_0:.*]] = fir.declare %[[ALLOCA_0]] {fortran_attrs = #fir.var_attrs<allocatable>, uniq_name = "_QFtest_intEa"} : (!fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>) -> !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
+! CHECK: %[[ALLOCA_1:.*]] = fir.alloca i32 {bindc_name = "n", uniq_name = "_QFtest_intEn"}
+! CHECK: %[[DECLARE_1:.*]] = fir.declare %[[ALLOCA_1]] {uniq_name = "_QFtest_intEn"} : (!fir.ref<i32>) -> !fir.ref<i32>
+! CHECK: fir.store %[[C5]] to %[[DECLARE_1]] : !fir.ref<i32>
+! CHECK: %[[LOAD_0:.*]] = fir.load %[[DECLARE_1]] : !fir.ref<i32>
+! CHECK: %[[CONVERT_0:.*]] = fir.convert %[[LOAD_0]] : (i32) -> index
+! CHECK: %[[CMPI_0:.*]] = arith.cmpi sgt, %[[CONVERT_0]], %[[C0]] : index
+! CHECK: %[[SELECT_0:.*]] = arith.select %[[CMPI_0]], %[[CONVERT_0]], %[[C0]] : index
+! CHECK: %[[ALLOCMEM_0:.*]] = fir.allocmem !fir.array<?xi32>, %[[SELECT_0]] {fir.must_be_heap = true, uniq_name = "_QFtest_intEa.alloc"}
+
+ call show_descriptor(a)
+! CHECK: %[[SHAPE_1:.*]] = fir.shape %[[SELECT_0]] : (index) -> !fir.shape<1>
+! CHECK: %[[EMBOX_1:.*]] = fir.embox %[[ALLOCMEM_0]](%[[SHAPE_1]]) : (!fir.heap<!fir.array<?xi32>>, !fir.shape<1>) -> !fir.box<!fir.heap<!fir.array<?xi32>>>
+! CHECK: fir.store %[[EMBOX_1]] to %[[DECLARE_0]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
+! CHECK: %[[LOAD_1:.*]] = fir.load %[[DECLARE_0]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[LOAD_1]]) fastmath<contract> : (!fir.box<!fir.heap<!fir.array<?xi32>>>) -> ()
+
+ call show_descriptor(a(1:3))
+! CHECK: %[[LOAD_2:.*]] = fir.load %[[DECLARE_0]] : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
+! CHECK: %[[SHAPE_2:.*]] = fir.shape %[[C3]] : (index) -> !fir.shape<1>
+! CHECK: %[[BOX_ADDR_0:.*]] = fir.box_addr %[[LOAD_2]] : (!fir.box<!fir.heap<!fir.array<?xi32>>>) -> !fir.heap<!fir.array<?xi32>>
+! CHECK: %[[CONSTANT_4:.*]] = arith.constant 0 : index
+! CHECK: %[[BOX_DIMS_0:.*]]:3 = fir.box_dims %[[LOAD_2]], %[[CONSTANT_4]] : (!fir.box<!fir.heap<!fir.array<?xi32>>>, index) -> (index, index, index)
+! CHECK: %[[SHAPE_SHIFT_0:.*]] = fir.shape_shift %[[BOX_DIMS_0]]#0, %[[BOX_DIMS_0]]#1 : (index, index) -> !fir.shapeshift<1>
+! CHECK: %[[ARRAY_COOR_0:.*]] = fir.array_coor %[[BOX_ADDR_0]](%[[SHAPE_SHIFT_0]]) %[[C1]] : (!fir.heap<!fir.array<?xi32>>, !fir.shapeshift<1>, index) -> !fir.ref<i32>
+! CHECK: %[[CONVERT_1:.*]] = fir.convert %[[ARRAY_COOR_0]] : (!fir.ref<i32>) -> !fir.ref<!fir.array<3xi32>>
+! CHECK: %[[EMBOX_2:.*]] = fir.embox %[[CONVERT_1]](%[[SHAPE_2]]) : (!fir.ref<!fir.array<3xi32>>, !fir.shape<1>) -> !fir.box<!fir.array<3xi32>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_2]]) fastmath<contract> : (!fir.box<!fir.array<3xi32>>) -> ()
+ deallocate(a)
+end subroutine test_int
+
+subroutine test_char
+! CHECK-LABEL: func.func @_QPtest_char() {
+ implicit none
+ character(len=9) :: c = 'Hey buddy'
+ call show_descriptor(c)
+! CHECK: %[[C3:.*]] = arith.constant 3 : index
+! CHECK: %[[C1:.*]] = arith.constant 1 : index
+! CHECK: %[[C9:.*]] = arith.constant 9 : index
+! CHECK: %[[DUMMY_SCOPE_0:.*]] = fir.dummy_scope : !fir.dscope
+! CHECK: %[[ADDRESS_OF_0:.*]] = fir.address_of(@_QFtest_charEc) : !fir.ref<!fir.char<1,9>>
+! CHECK: %[[DECLARE_0:.*]] = fir.declare %[[ADDRESS_OF_0]] typeparams %[[C9]] {uniq_name = "_QFtest_charEc"} : (!fir.ref<!fir.char<1,9>>, index) -> !fir.ref<!fir.char<1,9>>
+! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[DECLARE_0]] : (!fir.ref<!fir.char<1,9>>) -> !fir.box<!fir.char<1,9>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_0]]) fastmath<contract> : (!fir.box<!fir.char<1,9>>) -> ()
+
+ call show_descriptor(c(1:3))
+! CHECK: %[[C1_0:.*]] = arith.constant 1 : index
+! CHECK: %[[SUBI_0:.*]] = arith.subi %[[C1]], %[[C1_0]] : index
+! CHECK: %[[CONVERT_0:.*]] = fir.convert %[[DECLARE_0]] : (!fir.ref<!fir.char<1,9>>) -> !fir.ref<!fir.array<9x!fir.char<1>>>
+! CHECK: %[[COORDINATE_OF_0:.*]] = fir.coordinate_of %[[CONVERT_0]], %[[SUBI_0]] : (!fir.ref<!fir.array<9x!fir.char<1>>>, index) -> !fir.ref<!fir.char<1>>
+! CHECK: %[[CONVERT_1:.*]] = fir.convert %[[COORDINATE_OF_0]] : (!fir.ref<!fir.char<1>>) -> !fir.ref<!fir.char<1,3>>
+! CHECK: %[[EMBOX_1:.*]] = fir.embox %[[CONVERT_1]] : (!fir.ref<!fir.char<1,3>>) -> !fir.box<!fir.char<1,3>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_1]]) fastmath<contract> : (!fir.box<!fir.char<1,3>>) -> ()
+! CHECK: return
+end subroutine test_char
+
+subroutine test_logical
+! CHECK-LABEL: func.func @_QPtest_logical() {
+ implicit none
+ logical(kind=1) :: l1 = .false.
+ logical(kind=2) :: l2 = .true.
+ logical(kind=2), dimension(2), target :: la2 = (/ .true., .false. /)
+ logical(kind=2), dimension(:), pointer :: pla2
+! CHECK: %[[C0:.*]] = arith.constant 0 : index
+! CHECK: %[[C2:.*]] = arith.constant 2 : index
+! CHECK: %[[DUMMY_SCOPE_0:.*]] = fir.dummy_scope : !fir.dscope
+! CHECK: %[[ADDRESS_OF_0:.*]] = fir.address_of(@_QFtest_logicalEl1) : !fir.ref<!fir.logical<1>>
+! CHECK: %[[DECLARE_0:.*]] = fir.declare %[[ADDRESS_OF_0]] {uniq_name = "_QFtest_logicalEl1"} : (!fir.ref<!fir.logical<1>>) -> !fir.ref<!fir.logical<1>>
+! CHECK: %[[ADDRESS_OF_1:.*]] = fir.address_of(@_QFtest_logicalEl2) : !fir.ref<!fir.logical<2>>
+! CHECK: %[[DECLARE_1:.*]] = fir.declare %[[ADDRESS_OF_1]] {uniq_name = "_QFtest_logicalEl2"} : (!fir.ref<!fir.logical<2>>) -> !fir.ref<!fir.logical<2>>
+! CHECK: %[[ADDRESS_OF_2:.*]] = fir.address_of(@_QFtest_logicalEla2) : !fir.ref<!fir.array<2x!fir.logical<2>>>
+! CHECK: %[[SHAPE_0:.*]] = fir.shape %[[C2]] : (index) -> !fir.shape<1>
+! CHECK: %[[DECLARE_2:.*]] = fir.declare %[[ADDRESS_OF_2]](%[[SHAPE_0]]) {fortran_attrs = #fir.var_attrs<target>, uniq_name = "_QFtest_logicalEla2"} : (!fir.ref<!fir.array<2x!fir.logical<2>>>, !fir.shape<1>) -> !fir.ref<!fir.array<2x!fir.logical<2>>>
+! CHECK: %[[ALLOCA_0:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>> {bindc_name = "pla2", uniq_name = "_QFtest_logicalEpla2"}
+! CHECK: %[[ZERO_BITS_0:.*]] = fir.zero_bits !fir.ptr<!fir.array<?x!fir.logical<2>>>
+! CHECK: %[[SHAPE_1:.*]] = fir.shape %[[C0]] : (index) -> !fir.shape<1>
+! CHECK: %[[EMBOX_0:.*]] = fir.embox %[[ZERO_BITS_0]](%[[SHAPE_1]]) : (!fir.ptr<!fir.array<?x!fir.logical<2>>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>>
+! CHECK: fir.store %[[EMBOX_0]] to %[[ALLOCA_0]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>>>
+
+ call show_descriptor(l1)
+ call show_descriptor(l2)
+ pla2 => la2
+! CHECK: %[[DECLARE_3:.*]] = fir.declare %[[ALLOCA_0]] {fortran_attrs = #fir.var_attrs<pointer>, uniq_name = "_QFtest_logicalEpla2"} : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>>>) -> !fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>>>
+! CHECK: %[[EMBOX_1:.*]] = fir.embox %[[DECLARE_0]] : (!fir.ref<!fir.logical<1>>) -> !fir.box<!fir.logical<1>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_1]]) fastmath<contract> : (!fir.box<!fir.logical<1>>) -> ()
+! CHECK: %[[EMBOX_2:.*]] = fir.embox %[[DECLARE_1]] : (!fir.ref<!fir.logical<2>>) -> !fir.box<!fir.logical<2>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_2]]) fastmath<contract> : (!fir.box<!fir.logical<2>>) -> ()
+
+ call show_descriptor(la2)
+ call show_descriptor(pla2)
+! CHECK: %[[EMBOX_3:.*]] = fir.embox %[[DECLARE_2]](%[[SHAPE_0]]) : (!fir.ref<!fir.array<2x!fir.logical<2>>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>>
+! CHECK: fir.store %[[EMBOX_3]] to %[[DECLARE_3]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>>>
+! CHECK: %[[EMBOX_4:.*]] = fir.embox %[[DECLARE_2]](%[[SHAPE_0]]) : (!fir.ref<!fir.array<2x!fir.logical<2>>>, !fir.shape<1>) -> !fir.box<!fir.array<2x!fir.logical<2>>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_4]]) fastmath<contract> : (!fir.box<!fir.array<2x!fir.logical<2>>>) -> ()
+! CHECK: %[[LOAD_0:.*]] = fir.load %[[DECLARE_3]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[LOAD_0]]) fastmath<contract> : (!fir.box<!fir.ptr<!fir.array<?x!fir.logical<2>>>>) -> ()
+! CHECK: return
+end subroutine test_logical
+
+subroutine test_real
+! CHECK-LABEL: func.func @_QPtest_real() {
+ implicit none
+ real :: half = 0.5
+ real :: row(3) = (/ 1 , 2, 3 /)
+ real(kind=8) :: w(4) = (/ .00011_8 , .00012_8, .00013_8, .00014_8 /)
+! CHECK: %[[C2:.*]] = arith.constant 2 : index
+! CHECK: %[[C1:.*]] = arith.constant 1 : index
+! CHECK: %[[C4:.*]] = arith.constant 4 : index
+! CHECK: %[[C3:.*]] = arith.constant 3 : index
+! CHECK: %[[DUMMY_SCOPE_2:.*]] = fir.dummy_scope : !fir.dscope
+! CHECK: %[[ADDRESS_OF_4:.*]] = fir.address_of(@_QFtest_realEhalf) : !fir.ref<f32>
+! CHECK: %[[DECLARE_5:.*]] = fir.declare %[[ADDRESS_OF_4]] {uniq_name = "_QFtest_realEhalf"} : (!fir.ref<f32>) -> !fir.ref<f32>
+! CHECK: %[[ADDRESS_OF_5:.*]] = fir.address_of(@_QFtest_realErow) : !fir.ref<!fir.array<3xf32>>
+! CHECK: %[[SHAPE_2:.*]] = fir.shape %[[C3]] : (index) -> !fir.shape<1>
+! CHECK: %[[DECLARE_6:.*]] = fir.declare %[[ADDRESS_OF_5]](%[[SHAPE_2]]) {uniq_name = "_QFtest_realErow"} : (!fir.ref<!fir.array<3xf32>>, !fir.shape<1>) -> !fir.ref<!fir.array<3xf32>>
+! CHECK: %[[ADDRESS_OF_6:.*]] = fir.address_of(@_QFtest_realEw) : !fir.ref<!fir.array<4xf64>>
+! CHECK: %[[SHAPE_3:.*]] = fir.shape %[[C4]] : (index) -> !fir.shape<1>
+! CHECK: %[[DECLARE_7:.*]] = fir.declare %[[ADDRESS_OF_6]](%[[SHAPE_3]]) {uniq_name = "_QFtest_realEw"} : (!fir.ref<!fir.array<4xf64>>, !fir.shape<1>) -> !fir.ref<!fir.array<4xf64>>
+
+ call show_descriptor(half)
+ call show_descriptor(row)
+ call show_descriptor(w)
+ call show_descriptor(w(1:4:2))
+! CHECK: %[[EMBOX_7:.*]] = fir.embox %[[DECLARE_5]] : (!fir.ref<f32>) -> !fir.box<f32>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_7]]) fastmath<contract> : (!fir.box<f32>) -> ()
+! CHECK: %[[EMBOX_8:.*]] = fir.embox %[[DECLARE_6]](%[[SHAPE_2]]) : (!fir.ref<!fir.array<3xf32>>, !fir.shape<1>) -> !fir.box<!fir.array<3xf32>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_8]]) fastmath<contract> : (!fir.box<!fir.array<3xf32>>) -> ()
+! CHECK: %[[EMBOX_9:.*]] = fir.embox %[[DECLARE_7]](%[[SHAPE_3]]) : (!fir.ref<!fir.array<4xf64>>, !fir.shape<1>) -> !fir.box<!fir.array<4xf64>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_9]]) fastmath<contract> : (!fir.box<!fir.array<4xf64>>) -> ()
+! CHECK: %[[SHAPE_4:.*]] = fir.shape %[[C2]] : (index) -> !fir.shape<1>
+! CHECK: %[[UNDEFINED_0:.*]] = fir.undefined index
+! CHECK: %[[SLICE_0:.*]] = fir.slice %[[C1]], %[[C4]], %[[C2]] : (index, index, index) -> !fir.slice<1>
+! CHECK: %[[EMBOX_10:.*]] = fir.embox %[[DECLARE_7]](%[[SHAPE_3]]) {{\[}}%[[SLICE_0]]] : (!fir.ref<!fir.array<4xf64>>, !fir.shape<1>, !fir.slice<1>) -> !fir.box<!fir.array<2xf64>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_10]]) fastmath<contract> : (!fir.box<!fir.array<2xf64>>) -> ()
+! CHECK: return
+end subroutine test_real
+
+subroutine test_complex
+! CHECK-LABEL: func.func @_QPtest_complex() {
+ implicit none
+ complex, parameter :: hr = 0.5
+ complex, parameter :: hi = (0, 0.5)
+ complex :: c1 = hr
+ complex :: c2 = hi
+ complex :: a2(2) = (/ hr, hi /)
+! CHECK: %[[CST_0:.*]] = arith.constant 0.000000e+00 : f32
+! CHECK: %[[CST_1:.*]] = arith.constant 5.000000e-01 : f32
+! CHECK: %[[C2:.*]] = arith.constant 2 : index
+! CHECK: %[[ALLOCA_1:.*]] = fir.alloca complex<f32>
+! CHECK: %[[ALLOCA_2:.*]] = fir.alloca complex<f32>
+! CHECK: %[[DUMMY_SCOPE_3:.*]] = fir.dummy_scope : !fir.dscope
+! CHECK: %[[ADDRESS_OF_7:.*]] = fir.address_of(@_QFtest_complexEa2) : !fir.ref<!fir.array<2xcomplex<f32>>>
+! CHECK: %[[SHAPE_5:.*]] = fir.shape %[[C2]] : (index) -> !fir.shape<1>
+! CHECK: %[[DECLARE_8:.*]] = fir.declare %[[ADDRESS_OF_7]](%[[SHAPE_5]]) {uniq_name = "_QFtest_complexEa2"} : (!fir.ref<!fir.array<2xcomplex<f32>>>, !fir.shape<1>) -> !fir.ref<!fir.array<2xcomplex<f32>>>
+! CHECK: %[[ADDRESS_OF_8:.*]] = fir.address_of(@_QFtest_complexEc1) : !fir.ref<complex<f32>>
+! CHECK: %[[DECLARE_9:.*]] = fir.declare %[[ADDRESS_OF_8]] {uniq_name = "_QFtest_complexEc1"} : (!fir.ref<complex<f32>>) -> !fir.ref<complex<f32>>
+! CHECK: %[[ADDRESS_OF_9:.*]] = fir.address_of(@_QFtest_complexEc2) : !fir.ref<complex<f32>>
+! CHECK: %[[DECLARE_10:.*]] = fir.declare %[[ADDRESS_OF_9]] {uniq_name = "_QFtest_complexEc2"} : (!fir.ref<complex<f32>>) -> !fir.ref<complex<f32>>
+! CHECK: %[[ADDRESS_OF_10:.*]] = fir.address_of(@_QFtest_complexEChi) : !fir.ref<complex<f32>>
+! CHECK: %[[DECLARE_11:.*]] = fir.declare %[[ADDRESS_OF_10]] {fortran_attrs = #fir.var_attrs<parameter>, uniq_name = "_QFtest_complexEChi"} : (!fir.ref<complex<f32>>) -> !fir.ref<complex<f32>>
+! CHECK: %[[ADDRESS_OF_11:.*]] = fir.address_of(@_QFtest_complexEChr) : !fir.ref<complex<f32>>
+! CHECK: %[[DECLARE_12:.*]] = fir.declare %[[ADDRESS_OF_11]] {fortran_attrs = #fir.var_attrs<parameter>, uniq_name = "_QFtest_complexEChr"} : (!fir.ref<complex<f32>>) -> !fir.ref<complex<f32>>
+! CHECK: %[[UNDEFINED_1:.*]] = fir.undefined complex<f32>
+! CHECK: %[[INSERT_VALUE_0:.*]] = fir.insert_value %[[UNDEFINED_1]], %[[CST_1]], [0 : index] : (complex<f32>, f32) -> complex<f32>
+! CHECK: %[[INSERT_VALUE_1:.*]] = fir.insert_value %[[INSERT_VALUE_0]], %[[CST_0]], [1 : index] : (complex<f32>, f32) -> complex<f32>
+! CHECK: fir.store %[[INSERT_VALUE_1]] to %[[ALLOCA_2]] : !fir.ref<complex<f32>>
+
+ call show_descriptor(hr)
+! CHECK: %[[EMBOX_11:.*]] = fir.embox %[[ALLOCA_2]] : (!fir.ref<complex<f32>>) -> !fir.box<complex<f32>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_11]]) fastmath<contract> : (!fir.box<complex<f32>>) -> ()
+
+ call show_descriptor(hi)
+! CHECK: %[[INSERT_VALUE_2:.*]] = fir.insert_value %[[UNDEFINED_1]], %[[CST_0]], [0 : index] : (complex<f32>, f32) -> complex<f32>
+! CHECK: %[[INSERT_VALUE_3:.*]] = fir.insert_value %[[INSERT_VALUE_2]], %[[CST_1]], [1 : index] : (complex<f32>, f32) -> complex<f32>
+! CHECK: fir.store %[[INSERT_VALUE_3]] to %[[ALLOCA_1]] : !fir.ref<complex<f32>>
+! CHECK: %[[EMBOX_12:.*]] = fir.embox %[[ALLOCA_1]] : (!fir.ref<complex<f32>>) -> !fir.box<complex<f32>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_12]]) fastmath<contract> : (!fir.box<complex<f32>>) -> ()
+
+ call show_descriptor(a2)
+! CHECK: %[[EMBOX_13:.*]] = fir.embox %[[DECLARE_8]](%[[SHAPE_5]]) : (!fir.ref<!fir.array<2xcomplex<f32>>>, !fir.shape<1>) -> !fir.box<!fir.array<2xcomplex<f32>>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_13]]) fastmath<contract> : (!fir.box<!fir.array<2xcomplex<f32>>>) -> ()
+! CHECK: return
+end subroutine test_complex
+
+subroutine test_derived
+! CHECK-LABEL: func.func @_QPtest_derived() {
+ implicit none
+ type :: t1
+ integer :: a
+ integer :: b
+ end type t1
+ type, extends (t1) :: t2
+ integer :: c
+ end type t2
+ type(t2) :: vt2 = t2(7,5,3)
+! CHECK: %[[C0:.*]] = arith.constant 0 : index
+! CHECK: %[[C2:.*]] = arith.constant 2 : index
+! CHECK: %[[C1:.*]] = arith.constant 1 : index
+! CHECK: %[[DUMMY_SCOPE_4:.*]] = fir.dummy_scope : !fir.dscope
+! CHECK: %[[ADDRESS_OF_12:.*]] = fir.address_of(@_QFtest_derivedE.n.a) : !fir.ref<!fir.char<1>>
+! CHECK: %[[DECLARE_13:.*]] = fir.declare %[[ADDRESS_OF_12]] typeparams %[[C1]] {fortran_attrs = #fir.var_attrs<target>, uniq_name = "_QFtest_derivedE.n.a"} : (!fir.ref<!fir.char<1>>, index) -> !fir.ref<!fir.char<1>>
+! CHECK: %[[ADDRESS_OF_13:.*]] = fir.address_of(@_QFtest_derivedE.n.b) : !fir.ref<!fir.char<1>>
+! CHECK: %[[DECLARE_14:.*]] = fir.declare %[[ADDRESS_OF_13]] typeparams %[[C1]] {fortran_attrs = #fir.var_attrs<target>, uniq_name = "_QFtest_derivedE.n.b"} : (!fir.ref<!fir.char<1>>, index) -> !fir.ref<!fir.char<1>>
+! CHECK: %[[ADDRESS_OF_14:.*]] = fir.address_of(@_QFtest_derivedE.n.t1) : !fir.ref<!fir.char<1,2>>
+! CHECK: %[[DECLARE_15:.*]] = fir.declare %[[ADDRESS_OF_14]] typeparams %[[C2]] {fortran_attrs = #fir.var_attrs<target>, uniq_name = "_QFtest_derivedE.n.t1"} : (!fir.ref<!fir.char<1,2>>, index) -> !fir.ref<!fir.char<1,2>>
+! CHECK: %[[ADDRESS_OF_15:.*]] = fir.address_of(@_QFtest_derivedE.n.c) : !fir.ref<!fir.char<1>>
+! CHECK: %[[DECLARE_16:.*]] = fir.declare %[[ADDRESS_OF_15]] typeparams %[[C1]] {fortran_attrs = #fir.var_attrs<target>, uniq_name = "_QFtest_derivedE.n.c"} : (!fir.ref<!fir.char<1>>, index) -> !fir.ref<!fir.char<1>>
+! CHECK: %[[ADDRESS_OF_16:.*]] = fir.address_of(@_QFtest_derivedE.n.t2) : !fir.ref<!fir.char<1,2>>
+! CHECK: %[[DECLARE_17:.*]] = fir.declare %[[ADDRESS_OF_16]] typeparams %[[C2]] {fortran_attrs = #fir.var_attrs<target>, uniq_name = "_QFtest_derivedE.n.t2"} : (!fir.ref<!fir.char<1,2>>, index) -> !fir.ref<!fir.char<1,2>>
+! CHECK: %[[ADDRESS_OF_17:.*]] = fir.address_of(@_QFtest_derivedEvt2) : !fir.ref<!fir.type<_QFtest_derivedTt2{t1:!fir.type<_QFtest_derivedTt1{a:i32,b:i32}>,c:i32}>>
+! CHECK: %[[DECLARE_18:.*]] = fir.declare %[[ADDRESS_OF_17]] {uniq_name = "_QFtest_derivedEvt2"} : (!fir.ref<!fir.type<_QFtest_derivedTt2{t1:!fir.type<_QFtest_derivedTt1{a:i32,b:i32}>,c:i32}>>) -> !fir.ref<!fir.type<_QFtest_derivedTt2{t1:!fir.type<_QFtest_derivedTt1{a:i32,b:i32}>,c:i32}>>
+
+ call show_descriptor(vt2)
+! CHECK: %[[EMBOX_16:.*]] = fir.embox %[[DECLARE_18]] : (!fir.ref<!fir.type<_QFtest_derivedTt2{t1:!fir.type<_QFtest_derivedTt1{a:i32,b:i32}>,c:i32}>>) -> !fir.box<!fir.type<_QFtest_derivedTt2{t1:!fir.type<_QFtest_derivedTt1{a:i32,b:i32}>,c:i32}>>
+! CHECK: fir.call @_FortranAShowDescriptor(%[[EMBOX_16]]) fastmath<contract> : (!fir.box<!fir.type<_QFtest_derivedTt2{t1:!fir.type<_QFtest_derivedTt1{a:i32,b:i32}>,c:i32}>>) -> ()
+! CHECK: return
+end subroutine test_derived
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