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Jul 17, 2025
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[openacc][flang] Support two type bindName representation in acc routine #149147

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f61dd65
[openacc][flang] Support SymbolRef and String bindName representation…
Jul 16, 2025
878c70c
Remove extra braces
Jul 16, 2025
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102 changes: 71 additions & 31 deletions flang/lib/Lower/OpenACC.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -4396,10 +4396,34 @@ getAttributeValueByDeviceType(llvm::SmallVector<mlir::Attribute> &attributes,
return std::nullopt;
}

// Helper function to extract string value from bind name variant
static std::optional<llvm::StringRef> getBindNameStringValue(
const std::optional<std::variant<mlir::SymbolRefAttr, mlir::StringAttr>>
&bindNameValue) {
if (!bindNameValue.has_value())
return std::nullopt;

return std::visit(
[](const auto &attr) -> std::optional<llvm::StringRef> {
if constexpr (std::is_same_v<std::decay_t<decltype(attr)>,
mlir::StringAttr>) {
return attr.getValue();
} else if constexpr (std::is_same_v<std::decay_t<decltype(attr)>,
mlir::SymbolRefAttr>) {
return attr.getLeafReference();
} else {
return std::nullopt;
}
},
bindNameValue.value());
}

static bool compareDeviceTypeInfo(
mlir::acc::RoutineOp op,
llvm::SmallVector<mlir::Attribute> &bindNameArrayAttr,
llvm::SmallVector<mlir::Attribute> &bindNameDeviceTypeArrayAttr,
llvm::SmallVector<mlir::Attribute> &bindIdNameArrayAttr,
llvm::SmallVector<mlir::Attribute> &bindStrNameArrayAttr,
llvm::SmallVector<mlir::Attribute> &bindIdNameDeviceTypeArrayAttr,
llvm::SmallVector<mlir::Attribute> &bindStrNameDeviceTypeArrayAttr,
llvm::SmallVector<mlir::Attribute> &gangArrayAttr,
llvm::SmallVector<mlir::Attribute> &gangDimArrayAttr,
llvm::SmallVector<mlir::Attribute> &gangDimDeviceTypeArrayAttr,
Expand All @@ -4409,9 +4433,13 @@ static bool compareDeviceTypeInfo(
for (uint32_t dtypeInt = 0;
dtypeInt != mlir::acc::getMaxEnumValForDeviceType(); ++dtypeInt) {
auto dtype = static_cast<mlir::acc::DeviceType>(dtypeInt);
if (op.getBindNameValue(dtype) !=
getAttributeValueByDeviceType<llvm::StringRef, mlir::StringAttr>(
bindNameArrayAttr, bindNameDeviceTypeArrayAttr, dtype))
auto bindNameValue = getBindNameStringValue(op.getBindNameValue(dtype));
if (bindNameValue !=
getAttributeValueByDeviceType<llvm::StringRef, mlir::StringAttr>(
bindIdNameArrayAttr, bindIdNameDeviceTypeArrayAttr, dtype) &&
bindNameValue !=
getAttributeValueByDeviceType<llvm::StringRef, mlir::StringAttr>(
bindStrNameArrayAttr, bindStrNameDeviceTypeArrayAttr, dtype))
return false;
if (op.hasGang(dtype) != hasDeviceType(gangArrayAttr, dtype))
return false;
Expand Down Expand Up @@ -4458,8 +4486,10 @@ getArrayAttrOrNull(fir::FirOpBuilder &builder,
void createOpenACCRoutineConstruct(
Fortran::lower::AbstractConverter &converter, mlir::Location loc,
mlir::ModuleOp mod, mlir::func::FuncOp funcOp, std::string funcName,
bool hasNohost, llvm::SmallVector<mlir::Attribute> &bindNames,
llvm::SmallVector<mlir::Attribute> &bindNameDeviceTypes,
bool hasNohost, llvm::SmallVector<mlir::Attribute> &bindIdNames,
llvm::SmallVector<mlir::Attribute> &bindStrNames,
llvm::SmallVector<mlir::Attribute> &bindIdNameDeviceTypes,
llvm::SmallVector<mlir::Attribute> &bindStrNameDeviceTypes,
llvm::SmallVector<mlir::Attribute> &gangDeviceTypes,
llvm::SmallVector<mlir::Attribute> &gangDimValues,
llvm::SmallVector<mlir::Attribute> &gangDimDeviceTypes,
Expand All @@ -4472,7 +4502,8 @@ void createOpenACCRoutineConstruct(
0) {
// If the routine is already specified with the same clauses, just skip
// the operation creation.
if (compareDeviceTypeInfo(routineOp, bindNames, bindNameDeviceTypes,
if (compareDeviceTypeInfo(routineOp, bindIdNames, bindStrNames,
bindIdNameDeviceTypes, bindStrNameDeviceTypes,
gangDeviceTypes, gangDimValues,
gangDimDeviceTypes, seqDeviceTypes,
workerDeviceTypes, vectorDeviceTypes) &&
Expand All @@ -4489,8 +4520,10 @@ void createOpenACCRoutineConstruct(
modBuilder.create<mlir::acc::RoutineOp>(
loc, routineOpStr,
mlir::SymbolRefAttr::get(builder.getContext(), funcName),
getArrayAttrOrNull(builder, bindNames),
getArrayAttrOrNull(builder, bindNameDeviceTypes),
getArrayAttrOrNull(builder, bindIdNames),
getArrayAttrOrNull(builder, bindStrNames),
getArrayAttrOrNull(builder, bindIdNameDeviceTypes),
getArrayAttrOrNull(builder, bindStrNameDeviceTypes),
getArrayAttrOrNull(builder, workerDeviceTypes),
getArrayAttrOrNull(builder, vectorDeviceTypes),
getArrayAttrOrNull(builder, seqDeviceTypes), hasNohost,
Expand All @@ -4507,8 +4540,10 @@ static void interpretRoutineDeviceInfo(
llvm::SmallVector<mlir::Attribute> &seqDeviceTypes,
llvm::SmallVector<mlir::Attribute> &vectorDeviceTypes,
llvm::SmallVector<mlir::Attribute> &workerDeviceTypes,
llvm::SmallVector<mlir::Attribute> &bindNameDeviceTypes,
llvm::SmallVector<mlir::Attribute> &bindNames,
llvm::SmallVector<mlir::Attribute> &bindIdNameDeviceTypes,
llvm::SmallVector<mlir::Attribute> &bindStrNameDeviceTypes,
llvm::SmallVector<mlir::Attribute> &bindIdNames,
llvm::SmallVector<mlir::Attribute> &bindStrNames,
llvm::SmallVector<mlir::Attribute> &gangDeviceTypes,
llvm::SmallVector<mlir::Attribute> &gangDimValues,
llvm::SmallVector<mlir::Attribute> &gangDimDeviceTypes) {
Expand Down Expand Up @@ -4541,16 +4576,18 @@ static void interpretRoutineDeviceInfo(
if (dinfo.bindNameOpt().has_value()) {
const auto &bindName = dinfo.bindNameOpt().value();
mlir::Attribute bindNameAttr;
if (const auto &bindStr{std::get_if<std::string>(&bindName)}) {
if (const auto &bindSym{
std::get_if<Fortran::semantics::SymbolRef>(&bindName)}) {
bindNameAttr = builder.getSymbolRefAttr(converter.mangleName(*bindSym));
bindIdNames.push_back(bindNameAttr);
bindIdNameDeviceTypes.push_back(getDeviceTypeAttr());
} else if (const auto &bindStr{std::get_if<std::string>(&bindName)}) {
bindNameAttr = builder.getStringAttr(*bindStr);
} else if (const auto &bindSym{
std::get_if<Fortran::semantics::SymbolRef>(&bindName)}) {
bindNameAttr = builder.getStringAttr(converter.mangleName(*bindSym));
bindStrNames.push_back(bindNameAttr);
bindStrNameDeviceTypes.push_back(getDeviceTypeAttr());
} else {
llvm_unreachable("Unsupported bind name type");
}
bindNames.push_back(bindNameAttr);
bindNameDeviceTypes.push_back(getDeviceTypeAttr());
}
}

Expand All @@ -4566,8 +4603,9 @@ void Fortran::lower::genOpenACCRoutineConstruct(
bool hasNohost{false};

llvm::SmallVector<mlir::Attribute> seqDeviceTypes, vectorDeviceTypes,
workerDeviceTypes, bindNameDeviceTypes, bindNames, gangDeviceTypes,
gangDimDeviceTypes, gangDimValues;
workerDeviceTypes, bindIdNameDeviceTypes, bindStrNameDeviceTypes,
bindIdNames, bindStrNames, gangDeviceTypes, gangDimDeviceTypes,
gangDimValues;

for (const Fortran::semantics::OpenACCRoutineInfo &info : routineInfos) {
// Device Independent Attributes
Expand All @@ -4576,24 +4614,26 @@ void Fortran::lower::genOpenACCRoutineConstruct(
}
// Note: Device Independent Attributes are set to the
// none device type in `info`.
interpretRoutineDeviceInfo(converter, info, seqDeviceTypes,
vectorDeviceTypes, workerDeviceTypes,
bindNameDeviceTypes, bindNames, gangDeviceTypes,
gangDimValues, gangDimDeviceTypes);
interpretRoutineDeviceInfo(
converter, info, seqDeviceTypes, vectorDeviceTypes, workerDeviceTypes,
bindIdNameDeviceTypes, bindStrNameDeviceTypes, bindIdNames,
bindStrNames, gangDeviceTypes, gangDimValues, gangDimDeviceTypes);

// Device Dependent Attributes
for (const Fortran::semantics::OpenACCRoutineDeviceTypeInfo &dinfo :
info.deviceTypeInfos()) {
interpretRoutineDeviceInfo(
converter, dinfo, seqDeviceTypes, vectorDeviceTypes,
workerDeviceTypes, bindNameDeviceTypes, bindNames, gangDeviceTypes,
gangDimValues, gangDimDeviceTypes);
interpretRoutineDeviceInfo(converter, dinfo, seqDeviceTypes,
vectorDeviceTypes, workerDeviceTypes,
bindIdNameDeviceTypes, bindStrNameDeviceTypes,
bindIdNames, bindStrNames, gangDeviceTypes,
gangDimValues, gangDimDeviceTypes);
}
}
createOpenACCRoutineConstruct(
converter, loc, mod, funcOp, funcName, hasNohost, bindNames,
bindNameDeviceTypes, gangDeviceTypes, gangDimValues, gangDimDeviceTypes,
seqDeviceTypes, workerDeviceTypes, vectorDeviceTypes);
converter, loc, mod, funcOp, funcName, hasNohost, bindIdNames,
bindStrNames, bindIdNameDeviceTypes, bindStrNameDeviceTypes,
gangDeviceTypes, gangDimValues, gangDimDeviceTypes, seqDeviceTypes,
workerDeviceTypes, vectorDeviceTypes);
}

static void
Expand Down
7 changes: 4 additions & 3 deletions flang/test/Lower/OpenACC/acc-routine.f90
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,13 +2,14 @@

! RUN: bbc -fopenacc -emit-hlfir %s -o - | FileCheck %s

! CHECK: acc.routine @[[r14:.*]] func(@_QPacc_routine19) bind("_QPacc_routine17" [#acc.device_type<host>], "_QPacc_routine17" [#acc.device_type<default>], "_QPacc_routine16" [#acc.device_type<multicore>])
! CHECK: acc.routine @[[r13:.*]] func(@_QPacc_routine18) bind("_QPacc_routine17" [#acc.device_type<host>], "_QPacc_routine16" [#acc.device_type<multicore>])
! CHECK: acc.routine @[[r14:.*]] func(@_QPacc_routine19) bind(@_QPacc_routine17 [#acc.device_type<host>], @_QPacc_routine17
! [#acc.device_type<default>], @_QPacc_routine16 [#acc.device_type<multicore>])
! CHECK: acc.routine @[[r13:.*]] func(@_QPacc_routine18) bind(@_QPacc_routine17 [#acc.device_type<host>], @_QPacc_routine16 [#acc.device_type<multicore>])
! CHECK: acc.routine @[[r12:.*]] func(@_QPacc_routine17) worker ([#acc.device_type<host>]) vector ([#acc.device_type<multicore>])
! CHECK: acc.routine @[[r11:.*]] func(@_QPacc_routine16) gang([#acc.device_type<nvidia>]) seq ([#acc.device_type<host>])
! CHECK: acc.routine @[[r10:.*]] func(@_QPacc_routine11) seq
! CHECK: acc.routine @[[r09:.*]] func(@_QPacc_routine10) seq
! CHECK: acc.routine @[[r08:.*]] func(@_QPacc_routine9) bind("_QPacc_routine9a")
! CHECK: acc.routine @[[r08:.*]] func(@_QPacc_routine9) bind(@_QPacc_routine9a)
! CHECK: acc.routine @[[r07:.*]] func(@_QPacc_routine8) bind("routine8_")
! CHECK: acc.routine @[[r06:.*]] func(@_QPacc_routine7) gang(dim: 1 : i64)
! CHECK: acc.routine @[[r05:.*]] func(@_QPacc_routine6) nohost
Expand Down
2 changes: 1 addition & 1 deletion flang/test/Lower/OpenACC/acc-routine03.f90
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,6 @@ subroutine sub2(a)
end subroutine

! CHECK: acc.routine @acc_routine_1 func(@_QPsub2) worker nohost
! CHECK: acc.routine @acc_routine_0 func(@_QPsub1) bind("_QPsub2") worker
! CHECK: acc.routine @acc_routine_0 func(@_QPsub1) bind(@_QPsub2) worker
! CHECK: func.func @_QPsub1(%arg0: !fir.box<!fir.array<?xf32>> {fir.bindc_name = "a"}) attributes {acc.routine_info = #acc.routine_info<[@acc_routine_0]>}
! CHECK: func.func @_QPsub2(%arg0: !fir.box<!fir.array<?xf32>> {fir.bindc_name = "a"}) attributes {acc.routine_info = #acc.routine_info<[@acc_routine_1]>}
1 change: 1 addition & 0 deletions mlir/include/mlir/Dialect/OpenACC/OpenACC.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
#include "mlir/Interfaces/ControlFlowInterfaces.h"
#include "mlir/Interfaces/LoopLikeInterface.h"
#include "mlir/Interfaces/SideEffectInterfaces.h"
#include <variant>

#define GET_TYPEDEF_CLASSES
#include "mlir/Dialect/OpenACC/OpenACCOpsTypes.h.inc"
Expand Down
12 changes: 7 additions & 5 deletions mlir/include/mlir/Dialect/OpenACC/OpenACCOps.td
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2772,8 +2772,10 @@ def OpenACC_RoutineOp : OpenACC_Op<"routine", [IsolatedFromAbove]> {
}];

let arguments = (ins SymbolNameAttr:$sym_name, SymbolRefAttr:$func_name,
OptionalAttr<StrArrayAttr>:$bindName,
OptionalAttr<DeviceTypeArrayAttr>:$bindNameDeviceType,
OptionalAttr<SymbolRefArrayAttr>:$bindIdName,
OptionalAttr<StrArrayAttr>:$bindStrName,
OptionalAttr<DeviceTypeArrayAttr>:$bindIdNameDeviceType,
OptionalAttr<DeviceTypeArrayAttr>:$bindStrNameDeviceType,
OptionalAttr<DeviceTypeArrayAttr>:$worker,
OptionalAttr<DeviceTypeArrayAttr>:$vector,
OptionalAttr<DeviceTypeArrayAttr>:$seq, UnitAttr:$nohost,
Expand Down Expand Up @@ -2815,14 +2817,14 @@ def OpenACC_RoutineOp : OpenACC_Op<"routine", [IsolatedFromAbove]> {
std::optional<int64_t> getGangDimValue();
std::optional<int64_t> getGangDimValue(mlir::acc::DeviceType deviceType);

std::optional<llvm::StringRef> getBindNameValue();
std::optional<llvm::StringRef> getBindNameValue(mlir::acc::DeviceType deviceType);
std::optional<::std::variant<mlir::SymbolRefAttr, mlir::StringAttr>> getBindNameValue();
std::optional<::std::variant<mlir::SymbolRefAttr, mlir::StringAttr>> getBindNameValue(mlir::acc::DeviceType deviceType);
}];

let assemblyFormat = [{
$sym_name `func` `(` $func_name `)`
oilist (
`bind` `(` custom<BindName>($bindName, $bindNameDeviceType) `)`
`bind` `(` custom<BindName>($bindIdName, $bindStrName ,$bindIdNameDeviceType, $bindStrNameDeviceType) `)`
| `gang` `` custom<RoutineGangClause>($gang, $gangDim, $gangDimDeviceType)
| `worker` custom<DeviceTypeArrayAttr>($worker)
| `vector` custom<DeviceTypeArrayAttr>($vector)
Expand Down
112 changes: 87 additions & 25 deletions mlir/lib/Dialect/OpenACC/IR/OpenACC.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/TypeSwitch.h"
#include "llvm/Support/LogicalResult.h"
#include <variant>

using namespace mlir;
using namespace acc;
Expand Down Expand Up @@ -3461,40 +3462,88 @@ LogicalResult acc::RoutineOp::verify() {
return success();
}

static ParseResult parseBindName(OpAsmParser &parser, mlir::ArrayAttr &bindName,
mlir::ArrayAttr &deviceTypes) {
llvm::SmallVector<mlir::Attribute> bindNameAttrs;
llvm::SmallVector<mlir::Attribute> deviceTypeAttrs;
static ParseResult parseBindName(OpAsmParser &parser,
mlir::ArrayAttr &bindIdName,
mlir::ArrayAttr &bindStrName,
mlir::ArrayAttr &deviceIdTypes,
mlir::ArrayAttr &deviceStrTypes) {
llvm::SmallVector<mlir::Attribute> bindIdNameAttrs;
llvm::SmallVector<mlir::Attribute> bindStrNameAttrs;
llvm::SmallVector<mlir::Attribute> deviceIdTypeAttrs;
llvm::SmallVector<mlir::Attribute> deviceStrTypeAttrs;

if (failed(parser.parseCommaSeparatedList([&]() {
if (parser.parseAttribute(bindNameAttrs.emplace_back()))
mlir::Attribute newAttr;
bool isSymbolRefAttr;
auto parseResult = parser.parseAttribute(newAttr);
if (auto symbolRefAttr = dyn_cast<mlir::SymbolRefAttr>(newAttr)) {
bindIdNameAttrs.push_back(symbolRefAttr);
isSymbolRefAttr = true;
} else if (auto stringAttr = dyn_cast<mlir::StringAttr>(newAttr)) {
bindStrNameAttrs.push_back(stringAttr);
isSymbolRefAttr = false;
}
if (parseResult)
return failure();
if (failed(parser.parseOptionalLSquare())) {
deviceTypeAttrs.push_back(mlir::acc::DeviceTypeAttr::get(
parser.getContext(), mlir::acc::DeviceType::None));
if (isSymbolRefAttr) {
deviceIdTypeAttrs.push_back(mlir::acc::DeviceTypeAttr::get(
parser.getContext(), mlir::acc::DeviceType::None));
} else {
deviceStrTypeAttrs.push_back(mlir::acc::DeviceTypeAttr::get(
parser.getContext(), mlir::acc::DeviceType::None));
}
} else {
if (parser.parseAttribute(deviceTypeAttrs.emplace_back()) ||
parser.parseRSquare())
return failure();
if (isSymbolRefAttr) {
if (parser.parseAttribute(deviceIdTypeAttrs.emplace_back()) ||
parser.parseRSquare())
return failure();
} else {
if (parser.parseAttribute(deviceStrTypeAttrs.emplace_back()) ||
parser.parseRSquare())
return failure();
}
}
return success();
})))
return failure();

bindName = ArrayAttr::get(parser.getContext(), bindNameAttrs);
deviceTypes = ArrayAttr::get(parser.getContext(), deviceTypeAttrs);
bindIdName = ArrayAttr::get(parser.getContext(), bindIdNameAttrs);
bindStrName = ArrayAttr::get(parser.getContext(), bindStrNameAttrs);
deviceIdTypes = ArrayAttr::get(parser.getContext(), deviceIdTypeAttrs);
deviceStrTypes = ArrayAttr::get(parser.getContext(), deviceStrTypeAttrs);

return success();
}

static void printBindName(mlir::OpAsmPrinter &p, mlir::Operation *op,
std::optional<mlir::ArrayAttr> bindName,
std::optional<mlir::ArrayAttr> deviceTypes) {
llvm::interleaveComma(llvm::zip(*bindName, *deviceTypes), p,
[&](const auto &pair) {
p << std::get<0>(pair);
printSingleDeviceType(p, std::get<1>(pair));
});
std::optional<mlir::ArrayAttr> bindIdName,
std::optional<mlir::ArrayAttr> bindStrName,
std::optional<mlir::ArrayAttr> deviceIdTypes,
std::optional<mlir::ArrayAttr> deviceStrTypes) {
// Create combined vectors for all bind names and device types
llvm::SmallVector<mlir::Attribute> allBindNames;
llvm::SmallVector<mlir::Attribute> allDeviceTypes;

// Append bindIdName and deviceIdTypes
if (hasDeviceTypeValues(deviceIdTypes)) {
allBindNames.append(bindIdName->begin(), bindIdName->end());
allDeviceTypes.append(deviceIdTypes->begin(), deviceIdTypes->end());
}

// Append bindStrName and deviceStrTypes
if (hasDeviceTypeValues(deviceStrTypes)) {
allBindNames.append(bindStrName->begin(), bindStrName->end());
allDeviceTypes.append(deviceStrTypes->begin(), deviceStrTypes->end());
}

// Print the combined sequence
if (!allBindNames.empty())
llvm::interleaveComma(llvm::zip(allBindNames, allDeviceTypes), p,
[&](const auto &pair) {
p << std::get<0>(pair);
printSingleDeviceType(p, std::get<1>(pair));
});
}

static ParseResult parseRoutineGangClause(OpAsmParser &parser,
Expand Down Expand Up @@ -3654,19 +3703,32 @@ bool RoutineOp::hasSeq(mlir::acc::DeviceType deviceType) {
return hasDeviceType(getSeq(), deviceType);
}

std::optional<llvm::StringRef> RoutineOp::getBindNameValue() {
std::optional<std::variant<mlir::SymbolRefAttr, mlir::StringAttr>>
RoutineOp::getBindNameValue() {
return getBindNameValue(mlir::acc::DeviceType::None);
}

std::optional<llvm::StringRef>
std::optional<std::variant<mlir::SymbolRefAttr, mlir::StringAttr>>
RoutineOp::getBindNameValue(mlir::acc::DeviceType deviceType) {
if (!hasDeviceTypeValues(getBindNameDeviceType()))
if (!hasDeviceTypeValues(getBindIdNameDeviceType()) &&
!hasDeviceTypeValues(getBindStrNameDeviceType())) {
return std::nullopt;
if (auto pos = findSegment(*getBindNameDeviceType(), deviceType)) {
auto attr = (*getBindName())[*pos];
}

if (auto pos = findSegment(*getBindIdNameDeviceType(), deviceType)) {
auto attr = (*getBindIdName())[*pos];
auto symbolRefAttr = dyn_cast<mlir::SymbolRefAttr>(attr);
assert(symbolRefAttr && "expected SymbolRef");
return symbolRefAttr;
}

if (auto pos = findSegment(*getBindStrNameDeviceType(), deviceType)) {
auto attr = (*getBindStrName())[*pos];
auto stringAttr = dyn_cast<mlir::StringAttr>(attr);
return stringAttr.getValue();
assert(stringAttr && "expected String");
return stringAttr;
}

return std::nullopt;
}

Expand Down
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