Skip to content

[flang][OpenMP] Basic mapping of do concurrent ... reduce to OpenMP #146033

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 2 commits into
base: users/ergawy/convert_locality_specs_to_clauses_7
Choose a base branch
from
+282 −27
Open

[flang][OpenMP] Basic mapping of do concurrent ... reduce to OpenMP #146033

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
ba0d0c8
[flang][OpenMP] Basic mapping of `do concurrent ... reduce` to OpenMP
ergawy Jun 27, 2025
8c25fe7
Add all regions test.
ergawy Jun 30, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
83 changes: 56 additions & 27 deletions flang/lib/Optimizer/OpenMP/DoConcurrentConversion.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -312,6 +312,19 @@ class DoConcurrentConversion
bool isComposite) const {
mlir::omp::WsloopOperands wsloopClauseOps;

auto cloneFIRRegionToOMP = [&rewriter](mlir::Region &firRegion,
mlir::Region &ompRegion) {
if (!firRegion.empty()) {
rewriter.cloneRegionBefore(firRegion, ompRegion, ompRegion.begin());
auto firYield =
mlir::cast<fir::YieldOp>(ompRegion.back().getTerminator());
rewriter.setInsertionPoint(firYield);
rewriter.create<mlir::omp::YieldOp>(firYield.getLoc(),
firYield.getOperands());
rewriter.eraseOp(firYield);
}
};

// For `local` (and `local_init`) opernads, emit corresponding `private`
// clauses and attach these clauses to the workshare loop.
if (!loop.getLocalVars().empty())
Expand All @@ -326,50 +339,65 @@ class DoConcurrentConversion
TODO(localizer.getLoc(),
"local_init conversion is not supported yet");

auto oldIP = rewriter.saveInsertionPoint();
mlir::OpBuilder::InsertionGuard guard(rewriter);
rewriter.setInsertionPointAfter(localizer);

auto privatizer = rewriter.create<mlir::omp::PrivateClauseOp>(
localizer.getLoc(), sym.getLeafReference().str() + ".omp",
localizer.getTypeAttr().getValue(),
mlir::omp::DataSharingClauseType::Private);

if (!localizer.getInitRegion().empty()) {
rewriter.cloneRegionBefore(localizer.getInitRegion(),
privatizer.getInitRegion(),
privatizer.getInitRegion().begin());
auto firYield = mlir::cast<fir::YieldOp>(
privatizer.getInitRegion().back().getTerminator());
rewriter.setInsertionPoint(firYield);
rewriter.create<mlir::omp::YieldOp>(firYield.getLoc(),
firYield.getOperands());
rewriter.eraseOp(firYield);
}

if (!localizer.getDeallocRegion().empty()) {
rewriter.cloneRegionBefore(localizer.getDeallocRegion(),
privatizer.getDeallocRegion(),
privatizer.getDeallocRegion().begin());
auto firYield = mlir::cast<fir::YieldOp>(
privatizer.getDeallocRegion().back().getTerminator());
rewriter.setInsertionPoint(firYield);
rewriter.create<mlir::omp::YieldOp>(firYield.getLoc(),
firYield.getOperands());
rewriter.eraseOp(firYield);
}

rewriter.restoreInsertionPoint(oldIP);
cloneFIRRegionToOMP(localizer.getInitRegion(),
privatizer.getInitRegion());
cloneFIRRegionToOMP(localizer.getDeallocRegion(),
privatizer.getDeallocRegion());

wsloopClauseOps.privateVars.push_back(op);
wsloopClauseOps.privateSyms.push_back(
mlir::SymbolRefAttr::get(privatizer));
}

if (!loop.getReduceVars().empty()) {
for (auto [op, byRef, sym, arg] : llvm::zip_equal(
loop.getReduceVars(), loop.getReduceByrefAttr().asArrayRef(),
loop.getReduceSymsAttr().getAsRange<mlir::SymbolRefAttr>(),
loop.getRegionReduceArgs())) {
auto firReducer =
mlir::SymbolTable::lookupNearestSymbolFrom<fir::DeclareReductionOp>(
loop, sym);

mlir::OpBuilder::InsertionGuard guard(rewriter);
rewriter.setInsertionPointAfter(firReducer);

auto ompReducer = rewriter.create<mlir::omp::DeclareReductionOp>(
firReducer.getLoc(), sym.getLeafReference().str() + ".omp",
firReducer.getTypeAttr().getValue());

cloneFIRRegionToOMP(firReducer.getAllocRegion(),
ompReducer.getAllocRegion());
cloneFIRRegionToOMP(firReducer.getInitializerRegion(),
ompReducer.getInitializerRegion());
cloneFIRRegionToOMP(firReducer.getReductionRegion(),
ompReducer.getReductionRegion());
cloneFIRRegionToOMP(firReducer.getAtomicReductionRegion(),
ompReducer.getAtomicReductionRegion());
cloneFIRRegionToOMP(firReducer.getCleanupRegion(),
ompReducer.getCleanupRegion());

wsloopClauseOps.reductionVars.push_back(op);
wsloopClauseOps.reductionByref.push_back(byRef);
wsloopClauseOps.reductionSyms.push_back(
mlir::SymbolRefAttr::get(ompReducer));
}
}

auto wsloopOp =
rewriter.create<mlir::omp::WsloopOp>(loop.getLoc(), wsloopClauseOps);
wsloopOp.setComposite(isComposite);

Fortran::common::openmp::EntryBlockArgs wsloopArgs;
wsloopArgs.priv.vars = wsloopClauseOps.privateVars;
wsloopArgs.reduction.vars = wsloopClauseOps.reductionVars;
Fortran::common::openmp::genEntryBlock(rewriter, wsloopArgs,
wsloopOp.getRegion());

Expand All @@ -393,7 +421,8 @@ class DoConcurrentConversion
clauseOps.loopLowerBounds.size())))
rewriter.replaceAllUsesWith(loopNestArg, wsloopArg);

for (unsigned i = 0; i < loop.getLocalVars().size(); ++i)
for (unsigned i = 0;
i < loop.getLocalVars().size() + loop.getReduceVars().size(); ++i)
loopNestOp.getRegion().eraseArgument(clauseOps.loopLowerBounds.size());

return loopNestOp;
Expand Down
73 changes: 73 additions & 0 deletions flang/test/Transforms/DoConcurrent/reduce_add.mlir
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,73 @@
// Tests mapping reductions from fir to OpenMP.

// RUN: fir-opt --omp-do-concurrent-conversion="map-to=host" %s | FileCheck %s

fir.declare_reduction @add_reduction_i32 : i32 init {
^bb0(%arg0: i32):
%c0_i32 = arith.constant 0 : i32
fir.yield(%c0_i32 : i32)
} combiner {
^bb0(%arg0: i32, %arg1: i32):
%0 = arith.addi %arg0, %arg1 : i32
fir.yield(%0 : i32)
}

func.func @_QPdo_concurrent_reduce() {
%3 = fir.alloca i32 {bindc_name = "s", uniq_name = "_QFdo_concurrent_reduceEs"}
%4:2 = hlfir.declare %3 {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%c1 = arith.constant 1 : index
fir.do_concurrent {
%7 = fir.alloca i32 {bindc_name = "i"}
%8:2 = hlfir.declare %7 {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
fir.do_concurrent.loop (%arg0) = (%c1) to (%c1) step (%c1) reduce(@add_reduction_i32 #fir.reduce_attr<add> %4#0 -> %arg1 : !fir.ref<i32>) {
%9 = fir.convert %arg0 : (index) -> i32
fir.store %9 to %8#0 : !fir.ref<i32>
%10:2 = hlfir.declare %arg1 {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%11 = fir.load %10#0 : !fir.ref<i32>
%c1_i32_0 = arith.constant 1 : i32
%12 = arith.addi %11, %c1_i32_0 : i32
hlfir.assign %12 to %10#0 : i32, !fir.ref<i32>
}
}
return
}

// CHECK-LABEL: omp.declare_reduction @add_reduction_i32.omp : i32 init {
// CHECK: ^bb0(%[[VAL_0:.*]]: i32):
// CHECK: %[[VAL_1:.*]] = arith.constant 0 : i32
// CHECK: omp.yield(%[[VAL_1]] : i32)

// CHECK-LABEL: } combiner {
// CHECK: ^bb0(%[[VAL_0:.*]]: i32, %[[VAL_1:.*]]: i32):
// CHECK: %[[VAL_2:.*]] = arith.addi %[[VAL_0]], %[[VAL_1]] : i32
// CHECK: omp.yield(%[[VAL_2]] : i32)
// CHECK: }

// CHECK-LABEL: func.func @_QPdo_concurrent_reduce() {
// CHECK: %[[VAL_0:.*]] = fir.alloca i32 {bindc_name = "i"}
// CHECK: %[[VAL_1:.*]]:2 = hlfir.declare %[[VAL_0]] {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_2:.*]] = fir.alloca i32 {bindc_name = "s", uniq_name = "_QFdo_concurrent_reduceEs"}
// CHECK: %[[VAL_3:.*]]:2 = hlfir.declare %[[VAL_2]] {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_4:.*]] = arith.constant 1 : index
// CHECK: omp.parallel {
// CHECK: %[[VAL_5:.*]] = fir.alloca i32 {bindc_name = "i"}
// CHECK: %[[VAL_6:.*]]:2 = hlfir.declare %[[VAL_5]] {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)

// CHECK: omp.wsloop reduction(@add_reduction_i32.omp %[[VAL_3]]#0 -> %[[VAL_7:.*]] : !fir.ref<i32>) {
// CHECK: omp.loop_nest (%[[VAL_8:.*]]) : index = (%[[VAL_4]]) to (%[[VAL_4]]) inclusive step (%[[VAL_4]]) {
// CHECK: %[[VAL_9:.*]] = fir.convert %[[VAL_8]] : (index) -> i32
// CHECK: fir.store %[[VAL_9]] to %[[VAL_6]]#0 : !fir.ref<i32>
// CHECK: %[[VAL_10:.*]]:2 = hlfir.declare %[[VAL_7]] {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_11:.*]] = fir.load %[[VAL_10]]#0 : !fir.ref<i32>
// CHECK: %[[VAL_12:.*]] = arith.constant 1 : i32
// CHECK: %[[VAL_13:.*]] = arith.addi %[[VAL_11]], %[[VAL_12]] : i32
// CHECK: hlfir.assign %[[VAL_13]] to %[[VAL_10]]#0 : i32, !fir.ref<i32>
// CHECK: omp.yield
// CHECK: }
// CHECK: }
// CHECK: omp.terminator
// CHECK: }

// CHECK: return
// CHECK: }

70 changes: 70 additions & 0 deletions flang/test/Transforms/DoConcurrent/reduce_all_regions.mlir
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,70 @@
// Tests mapping reductions from fir to OpenMP (all regions).

// RUN: fir-opt --omp-do-concurrent-conversion="map-to=host" %s | FileCheck %s

fir.declare_reduction @add_reduction_i32 : i32 init {
^bb0(%arg0: i32):
fir.yield(%arg0 : i32)
} combiner {
^bb0(%arg0: i32, %arg1: i32):
fir.yield(%arg0 : i32)
} atomic {
^bb0(%arg0: !fir.ref<i32>, %arg1: !fir.ref<i32>):
fir.yield(%arg0 : !fir.ref<i32>)
} cleanup {
^bb0(%arg0: i32):
fir.yield
}

func.func @_QPdo_concurrent_reduce() {
%3 = fir.alloca i32 {bindc_name = "s", uniq_name = "_QFdo_concurrent_reduceEs"}
%4:2 = hlfir.declare %3 {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%c1 = arith.constant 1 : index
fir.do_concurrent {
%7 = fir.alloca i32 {bindc_name = "i"}
%8:2 = hlfir.declare %7 {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
fir.do_concurrent.loop (%arg0) = (%c1) to (%c1) step (%c1) reduce(@add_reduction_i32 #fir.reduce_attr<add> %4#0 -> %arg1 : !fir.ref<i32>) {
%9 = fir.convert %arg0 : (index) -> i32
fir.store %9 to %8#0 : !fir.ref<i32>
}
}
return
}

// CHECK-LABEL: omp.declare_reduction @add_reduction_i32.omp : i32 init {
// CHECK: ^bb0(%[[VAL_0:.*]]: i32):
// CHECK: omp.yield(%[[VAL_0]] : i32)

// CHECK-LABEL: } combiner {
// CHECK: ^bb0(%[[VAL_0:.*]]: i32, %[[VAL_1:.*]]: i32):
// CHECK: omp.yield(%[[VAL_0]] : i32)

// CHECK-LABEL: } atomic {
// CHECK: ^bb0(%[[VAL_0:.*]]: !fir.ref<i32>, %[[VAL_1:.*]]: !fir.ref<i32>):
// CHECK: omp.yield(%[[VAL_0]] : !fir.ref<i32>)

// CHECK-LABEL: } cleanup {
// CHECK: ^bb0(%[[VAL_0:.*]]: i32):
// CHECK: omp.yield
// CHECK: }

// CHECK-LABEL: func.func @_QPdo_concurrent_reduce() {
// CHECK: %[[VAL_0:.*]] = fir.alloca i32 {bindc_name = "i"}
// CHECK: %[[VAL_1:.*]]:2 = hlfir.declare %[[VAL_0]] {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_2:.*]] = fir.alloca i32 {bindc_name = "s", uniq_name = "_QFdo_concurrent_reduceEs"}
// CHECK: %[[VAL_3:.*]]:2 = hlfir.declare %[[VAL_2]] {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_4:.*]] = arith.constant 1 : index
// CHECK: omp.parallel {
// CHECK: %[[VAL_5:.*]] = fir.alloca i32 {bindc_name = "i"}
// CHECK: %[[VAL_6:.*]]:2 = hlfir.declare %[[VAL_5]] {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: omp.wsloop reduction(@add_reduction_i32.omp %[[VAL_3]]#0 -> %[[VAL_7:.*]] : !fir.ref<i32>) {
// CHECK: omp.loop_nest (%[[VAL_8:.*]]) : index = (%[[VAL_4]]) to (%[[VAL_4]]) inclusive step (%[[VAL_4]]) {
// CHECK: %[[VAL_9:.*]] = fir.convert %[[VAL_8]] : (index) -> i32
// CHECK: fir.store %[[VAL_9]] to %[[VAL_6]]#0 : !fir.ref<i32>
// CHECK: omp.yield
// CHECK: }
// CHECK: }
// CHECK: omp.terminator
// CHECK: }
// CHECK: return
// CHECK: }
83 changes: 83 additions & 0 deletions flang/test/Transforms/DoConcurrent/reduce_local.mlir
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,83 @@
// Tests mapping reductions and local from fir to OpenMP.

// RUN: fir-opt --omp-do-concurrent-conversion="map-to=host" %s | FileCheck %s

fir.declare_reduction @add_reduction_i32 : i32 init {
^bb0(%arg0: i32):
%c0_i32 = arith.constant 0 : i32
fir.yield(%c0_i32 : i32)
} combiner {
^bb0(%arg0: i32, %arg1: i32):
%0 = arith.addi %arg0, %arg1 : i32
fir.yield(%0 : i32)
}
fir.local {type = local} @_QFdo_concurrent_reduceEl_private_i32 : i32
func.func @_QPdo_concurrent_reduce() {
%3 = fir.alloca i32 {bindc_name = "l", uniq_name = "_QFdo_concurrent_reduceEl"}
%4:2 = hlfir.declare %3 {uniq_name = "_QFdo_concurrent_reduceEl"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%5 = fir.alloca i32 {bindc_name = "s", uniq_name = "_QFdo_concurrent_reduceEs"}
%6:2 = hlfir.declare %5 {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%c1 = arith.constant 1 : index
fir.do_concurrent {
%9 = fir.alloca i32 {bindc_name = "i"}
%10:2 = hlfir.declare %9 {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
fir.do_concurrent.loop (%arg0) = (%c1) to (%c1) step (%c1) local(@_QFdo_concurrent_reduceEl_private_i32 %4#0 -> %arg1 : !fir.ref<i32>) reduce(@add_reduction_i32 #fir.reduce_attr<add> %6#0 -> %arg2 : !fir.ref<i32>) {
%11 = fir.convert %arg0 : (index) -> i32
fir.store %11 to %10#0 : !fir.ref<i32>
%12:2 = hlfir.declare %arg1 {uniq_name = "_QFdo_concurrent_reduceEl"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%13:2 = hlfir.declare %arg2 {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
%c1_i32_0 = arith.constant 1 : i32
hlfir.assign %c1_i32_0 to %12#0 : i32, !fir.ref<i32>
%14 = fir.load %13#0 : !fir.ref<i32>
%15 = fir.load %12#0 : !fir.ref<i32>
%16 = arith.addi %14, %15 : i32
hlfir.assign %16 to %13#0 : i32, !fir.ref<i32>
}
}
return
}

// CHECK-LABEL: omp.declare_reduction @add_reduction_i32.omp : i32 init {
// CHECK: ^bb0(%[[VAL_0:.*]]: i32):
// CHECK: %[[VAL_1:.*]] = arith.constant 0 : i32
// CHECK: omp.yield(%[[VAL_1]] : i32)

// CHECK-LABEL: } combiner {
// CHECK: ^bb0(%[[VAL_0:.*]]: i32, %[[VAL_1:.*]]: i32):
// CHECK: %[[VAL_2:.*]] = arith.addi %[[VAL_0]], %[[VAL_1]] : i32
// CHECK: omp.yield(%[[VAL_2]] : i32)
// CHECK: }

// CHECK: omp.private {type = private} @_QFdo_concurrent_reduceEl_private_i32.omp : i32

// CHECK-LABEL: func.func @_QPdo_concurrent_reduce() {
// CHECK: %[[VAL_0:.*]] = fir.alloca i32 {bindc_name = "i"}
// CHECK: %[[VAL_1:.*]]:2 = hlfir.declare %[[VAL_0]] {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_2:.*]] = fir.alloca i32 {bindc_name = "l", uniq_name = "_QFdo_concurrent_reduceEl"}
// CHECK: %[[VAL_3:.*]]:2 = hlfir.declare %[[VAL_2]] {uniq_name = "_QFdo_concurrent_reduceEl"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_4:.*]] = fir.alloca i32 {bindc_name = "s", uniq_name = "_QFdo_concurrent_reduceEs"}
// CHECK: %[[VAL_5:.*]]:2 = hlfir.declare %[[VAL_4]] {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_6:.*]] = arith.constant 1 : index
// CHECK: omp.parallel {
// CHECK: %[[VAL_7:.*]] = fir.alloca i32 {bindc_name = "i"}
// CHECK: %[[VAL_8:.*]]:2 = hlfir.declare %[[VAL_7]] {uniq_name = "_QFdo_concurrent_reduceEi"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: omp.wsloop private(@_QFdo_concurrent_reduceEl_private_i32.omp %[[VAL_3]]#0 -> %[[VAL_9:.*]] : !fir.ref<i32>) reduction(@add_reduction_i32.omp %[[VAL_5]]#0 -> %[[VAL_10:.*]] : !fir.ref<i32>) {
// CHECK: omp.loop_nest (%[[VAL_11:.*]]) : index = (%[[VAL_6]]) to (%[[VAL_6]]) inclusive step (%[[VAL_6]]) {
// CHECK: %[[VAL_12:.*]] = fir.convert %[[VAL_11]] : (index) -> i32
// CHECK: fir.store %[[VAL_12]] to %[[VAL_8]]#0 : !fir.ref<i32>
// CHECK: %[[VAL_13:.*]]:2 = hlfir.declare %[[VAL_9]] {uniq_name = "_QFdo_concurrent_reduceEl"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_14:.*]]:2 = hlfir.declare %[[VAL_10]] {uniq_name = "_QFdo_concurrent_reduceEs"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
// CHECK: %[[VAL_15:.*]] = arith.constant 1 : i32
// CHECK: hlfir.assign %[[VAL_15]] to %[[VAL_13]]#0 : i32, !fir.ref<i32>
// CHECK: %[[VAL_16:.*]] = fir.load %[[VAL_14]]#0 : !fir.ref<i32>
// CHECK: %[[VAL_17:.*]] = fir.load %[[VAL_13]]#0 : !fir.ref<i32>
// CHECK: %[[VAL_18:.*]] = arith.addi %[[VAL_16]], %[[VAL_17]] : i32
// CHECK: hlfir.assign %[[VAL_18]] to %[[VAL_14]]#0 : i32, !fir.ref<i32>
// CHECK: omp.yield
// CHECK: }
// CHECK: }
// CHECK: omp.terminator
// CHECK: }
// CHECK: return
// CHECK: }

Loading