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Oct 28, 2025
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[flang][cuda] Add interfaces and lowering for tma_bulk_store #165482

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7 changes: 7 additions & 0 deletions flang/include/flang/Optimizer/Builder/IntrinsicCall.h
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Original file line number Diff line number Diff line change
Expand Up @@ -469,6 +469,13 @@ struct IntrinsicLibrary {
void genTMABulkLoadR4(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkLoadR8(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkS2G(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkStoreI4(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkStoreI8(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkStoreR2(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkStoreR4(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkStoreR8(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkStoreC4(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkStoreC8(llvm::ArrayRef<fir::ExtendedValue>);
void genTMABulkWaitGroup(llvm::ArrayRef<fir::ExtendedValue>);
mlir::Value genTrailz(mlir::Type, llvm::ArrayRef<mlir::Value>);
fir::ExtendedValue genTransfer(mlir::Type,
Expand Down
114 changes: 114 additions & 0 deletions flang/lib/Optimizer/Builder/IntrinsicCall.cpp
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Expand Up @@ -1098,6 +1098,34 @@ static constexpr IntrinsicHandler handlers[]{
&I::genTMABulkS2G,
{{{"src", asAddr}, {"dst", asAddr}, {"nbytes", asValue}}},
/*isElemental=*/false},
{"tma_bulk_store_c4",
&I::genTMABulkStoreC4,
{{{"src", asAddr}, {"dst", asAddr}, {"count", asValue}}},
/*isElemental=*/false},
{"tma_bulk_store_c8",
&I::genTMABulkStoreC8,
{{{"src", asAddr}, {"dst", asAddr}, {"count", asValue}}},
/*isElemental=*/false},
{"tma_bulk_store_i4",
&I::genTMABulkStoreI4,
{{{"src", asAddr}, {"dst", asAddr}, {"count", asValue}}},
/*isElemental=*/false},
{"tma_bulk_store_i8",
&I::genTMABulkStoreI8,
{{{"src", asAddr}, {"dst", asAddr}, {"count", asValue}}},
/*isElemental=*/false},
{"tma_bulk_store_r2",
&I::genTMABulkStoreR2,
{{{"src", asAddr}, {"dst", asAddr}, {"count", asValue}}},
/*isElemental=*/false},
{"tma_bulk_store_r4",
&I::genTMABulkStoreR4,
{{{"src", asAddr}, {"dst", asAddr}, {"count", asValue}}},
/*isElemental=*/false},
{"tma_bulk_store_r8",
&I::genTMABulkStoreR8,
{{{"src", asAddr}, {"dst", asAddr}, {"count", asValue}}},
/*isElemental=*/false},
{"tma_bulk_wait_group",
&I::genTMABulkWaitGroup,
{{}},
Expand Down Expand Up @@ -9430,6 +9458,92 @@ void IntrinsicLibrary::genTMABulkS2G(llvm::ArrayRef<fir::ExtendedValue> args) {
builder.getI32IntegerAttr(0), {});
}

static void genTMABulkStore(fir::FirOpBuilder &builder, mlir::Location loc,
mlir::Value src, mlir::Value dst, mlir::Value count,
mlir::Value eleSize) {
mlir::Value size = mlir::arith::MulIOp::create(builder, loc, eleSize, count);
src = convertPtrToNVVMSpace(builder, loc, src,
mlir::NVVM::NVVMMemorySpace::Shared);
dst = convertPtrToNVVMSpace(builder, loc, dst,
mlir::NVVM::NVVMMemorySpace::Global);
mlir::NVVM::CpAsyncBulkSharedCTAToGlobalOp::create(builder, loc, dst, src,
size, {}, {});
mlir::NVVM::InlinePtxOp::create(builder, loc, mlir::TypeRange{}, {}, {},
"cp.async.bulk.commit_group", {});
mlir::NVVM::CpAsyncBulkWaitGroupOp::create(builder, loc,
builder.getI32IntegerAttr(0), {});
}

// TMA_BULK_STORE_C4 (CUDA)
void IntrinsicLibrary::genTMABulkStoreC4(
llvm::ArrayRef<fir::ExtendedValue> args) {
assert(args.size() == 3);
mlir::Value eleSize =
builder.createIntegerConstant(loc, builder.getI32Type(), 8);
genTMABulkStore(builder, loc, fir::getBase(args[0]), fir::getBase(args[1]),
fir::getBase(args[2]), eleSize);
}

// TMA_BULK_STORE_C8 (CUDA)
void IntrinsicLibrary::genTMABulkStoreC8(
llvm::ArrayRef<fir::ExtendedValue> args) {
assert(args.size() == 3);
mlir::Value eleSize =
builder.createIntegerConstant(loc, builder.getI32Type(), 16);
genTMABulkStore(builder, loc, fir::getBase(args[0]), fir::getBase(args[1]),
fir::getBase(args[2]), eleSize);
}

// TMA_BULK_STORE_I4 (CUDA)
void IntrinsicLibrary::genTMABulkStoreI4(
llvm::ArrayRef<fir::ExtendedValue> args) {
assert(args.size() == 3);
mlir::Value eleSize =
builder.createIntegerConstant(loc, builder.getI32Type(), 4);
genTMABulkStore(builder, loc, fir::getBase(args[0]), fir::getBase(args[1]),
fir::getBase(args[2]), eleSize);
}

// TMA_BULK_STORE_I8 (CUDA)
void IntrinsicLibrary::genTMABulkStoreI8(
llvm::ArrayRef<fir::ExtendedValue> args) {
assert(args.size() == 3);
mlir::Value eleSize =
builder.createIntegerConstant(loc, builder.getI32Type(), 8);
genTMABulkStore(builder, loc, fir::getBase(args[0]), fir::getBase(args[1]),
fir::getBase(args[2]), eleSize);
}

// TMA_BULK_STORE_R2 (CUDA)
void IntrinsicLibrary::genTMABulkStoreR2(
llvm::ArrayRef<fir::ExtendedValue> args) {
assert(args.size() == 3);
mlir::Value eleSize =
builder.createIntegerConstant(loc, builder.getI32Type(), 2);
genTMABulkStore(builder, loc, fir::getBase(args[0]), fir::getBase(args[1]),
fir::getBase(args[2]), eleSize);
}

// TMA_BULK_STORE_R4 (CUDA)
void IntrinsicLibrary::genTMABulkStoreR4(
llvm::ArrayRef<fir::ExtendedValue> args) {
assert(args.size() == 3);
mlir::Value eleSize =
builder.createIntegerConstant(loc, builder.getI32Type(), 4);
genTMABulkStore(builder, loc, fir::getBase(args[0]), fir::getBase(args[1]),
fir::getBase(args[2]), eleSize);
}

// TMA_BULK_STORE_R8 (CUDA)
void IntrinsicLibrary::genTMABulkStoreR8(
llvm::ArrayRef<fir::ExtendedValue> args) {
assert(args.size() == 3);
mlir::Value eleSize =
builder.createIntegerConstant(loc, builder.getI32Type(), 8);
genTMABulkStore(builder, loc, fir::getBase(args[0]), fir::getBase(args[1]),
fir::getBase(args[2]), eleSize);
}

// TMA_BULK_WAIT_GROUP (CUDA)
void IntrinsicLibrary::genTMABulkWaitGroup(
llvm::ArrayRef<fir::ExtendedValue> args) {
Expand Down
85 changes: 76 additions & 9 deletions flang/module/cudadevice.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -2047,7 +2047,13 @@ attributes(device) subroutine tma_bulk_wait_group()
end subroutine
end interface

! --------------------
! Bulk load functions
! --------------------

! Generic load, count is in bytes
! -------------------------------

interface
attributes(device) subroutine tma_bulk_g2s(barrier, src, dst, nbytes)
!dir$ ignore_tkr src, dst
Expand All @@ -2058,17 +2064,9 @@ attributes(device) subroutine tma_bulk_g2s(barrier, src, dst, nbytes)
end subroutine
end interface

interface
attributes(device) subroutine tma_bulk_s2g(src, dst, nbytes)
!dir$ ignore_tkr src, dst
integer(4), shared :: src(*)
integer(4), device :: dst(*)
integer(4), value :: nbytes
end subroutine
end interface

! Load specific types, count is in elements
! -----------------------------------------

interface tma_bulk_load
attributes(device) subroutine tma_bulk_ldc4(barrier, src, dst, nelems)
!dir$ ignore_tkr (r) src, (r) dst
Expand Down Expand Up @@ -2127,6 +2125,75 @@ attributes(device) subroutine tma_bulk_ldr8(barrier, src, dst, nelems)
end subroutine
end interface

! --------------------
! Bulk Store functions
! --------------------

! Generic store, count is in bytes
! --------------------------------

interface
attributes(device) subroutine tma_bulk_s2g(src, dst, nbytes)
!dir$ ignore_tkr src, dst
integer(4), shared :: src(*)
integer(4), device :: dst(*)
integer(4), value :: nbytes
end subroutine
end interface

! Load specific types, count is in elements
! -----------------------------------------

interface tma_bulk_store
attributes(device) subroutine tma_bulk_store_c4(src, dst, nelems)
!dir$ ignore_tkr (r) src, (r) dst
complex(4), shared :: src(*)
complex(4), device :: dst(*)
integer(4), value :: nelems
end subroutine

attributes(device) subroutine tma_bulk_store_c8(src, dst, nelems)
!dir$ ignore_tkr (r) src, (r) dst
complex(8), shared :: src(*)
complex(8), device :: dst(*)
integer(4), value :: nelems
end subroutine

attributes(device) subroutine tma_bulk_store_i4(src, dst, nelems)
!dir$ ignore_tkr (r) src, (r) dst
integer(4), shared :: src(*)
integer(4), device :: dst(*)
integer(4), value :: nelems
end subroutine

attributes(device) subroutine tma_bulk_store_i8(src, dst, nelems)
!dir$ ignore_tkr (r) src, (r) dst
integer(8), shared :: src(*)
integer(8), device :: dst(*)
integer(4), value :: nelems
end subroutine

attributes(device) subroutine tma_bulk_store_r2(src, dst, nelems)
!dir$ ignore_tkr (r) src, (r) dst
real(2), shared :: src(*)
real(2), device :: dst(*)
integer(4), value :: nelems
end subroutine

attributes(device) subroutine tma_bulk_store_r4(src, dst, nelems)
!dir$ ignore_tkr (r) src, (r) dst
real(4), shared :: src(*)
real(4), device :: dst(*)
integer(4), value :: nelems
end subroutine

attributes(device) subroutine tma_bulk_store_r8(src, dst, nelems)
!dir$ ignore_tkr (r) src, (r) dst
real(8), shared :: src(*)
real(8), device :: dst(*)
integer(4), value :: nelems
end subroutine
end interface

contains

Expand Down
92 changes: 92 additions & 0 deletions flang/test/Lower/CUDA/cuda-device-proc.cuf
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Expand Up @@ -649,3 +649,95 @@ end subroutine
! CHECK: %[[BARRIER_PTR:.*]] = fir.convert %[[BARRIER]]#0 : (!fir.ref<i64>) -> !llvm.ptr
! CHECK: nvvm.inline_ptx "cp.async.bulk.shared::cluster.global.mbarrier::complete_tx::bytes [%0], [%1], %2, [%3];" ro(%{{.*}}, %{{.*}}, %[[SIZE]], %[[BARRIER_PTR]] : !fir.ref<!fir.array<1024xf64>>, !fir.ref<f64>, i32, !llvm.ptr)
! CHECK: nvvm.inline_ptx "mbarrier.expect_tx.relaxed.cta.shared::cta.b64 [%0], %1;" ro(%[[BARRIER_PTR]], %[[SIZE]] : !llvm.ptr, i32)

attributes(global) subroutine test_tma_bulk_store_c4(c, n)
integer, value :: n
complex(4), device :: c(n)
complex(4), shared :: tmpa(1024)
integer(4) :: j, elem_count
call tma_bulk_store(tmpa, c(j), elem_count)
end subroutine

! CHECK-LABEL: func.func @_QPtest_tma_bulk_store_c4
! CHECK: nvvm.cp.async.bulk.global.shared.cta %{{.*}}, %{{.*}}, %{{.*}} : <1>, <3>
! CHECK: nvvm.inline_ptx "cp.async.bulk.commit_group"
! CHECK: nvvm.cp.async.bulk.wait_group 0

attributes(global) subroutine test_tma_bulk_store_c8(c, n)
integer, value :: n
complex(8), device :: c(n)
complex(8), shared :: tmpa(1024)
integer(4) :: j, elem_count
call tma_bulk_store(tmpa, c(j), elem_count)
end subroutine

! CHECK-LABEL: func.func @_QPtest_tma_bulk_store_c8
! CHECK: nvvm.cp.async.bulk.global.shared.cta %{{.*}}, %{{.*}}, %{{.*}} : <1>, <3>
! CHECK: nvvm.inline_ptx "cp.async.bulk.commit_group"
! CHECK: nvvm.cp.async.bulk.wait_group 0

attributes(global) subroutine test_tma_bulk_store_i4(c, n)
integer, value :: n
integer(4), device :: c(n)
integer(4), shared :: tmpa(1024)
integer(4) :: j, elem_count
call tma_bulk_store(tmpa, c(j), elem_count)
end subroutine

! CHECK-LABEL: func.func @_QPtest_tma_bulk_store_i4
! CHECK: nvvm.cp.async.bulk.global.shared.cta %{{.*}}, %{{.*}}, %{{.*}} : <1>, <3>
! CHECK: nvvm.inline_ptx "cp.async.bulk.commit_group"
! CHECK: nvvm.cp.async.bulk.wait_group 0

attributes(global) subroutine test_tma_bulk_store_i8(c, n)
integer, value :: n
integer(8), device :: c(n)
integer(8), shared :: tmpa(1024)
integer(4) :: j, elem_count
call tma_bulk_store(tmpa, c(j), elem_count)
end subroutine

! CHECK-LABEL: func.func @_QPtest_tma_bulk_store_i8
! CHECK: nvvm.cp.async.bulk.global.shared.cta %{{.*}}, %{{.*}}, %{{.*}} : <1>, <3>
! CHECK: nvvm.inline_ptx "cp.async.bulk.commit_group"
! CHECK: nvvm.cp.async.bulk.wait_group 0


attributes(global) subroutine test_tma_bulk_store_r2(c, n)
integer, value :: n
real(2), device :: c(n)
real(2), shared :: tmpa(1024)
integer(4) :: j, elem_count
call tma_bulk_store(tmpa, c(j), elem_count)
end subroutine

! CHECK-LABEL: func.func @_QPtest_tma_bulk_store_r2
! CHECK: nvvm.cp.async.bulk.global.shared.cta %{{.*}}, %{{.*}}, %{{.*}} : <1>, <3>
! CHECK: nvvm.inline_ptx "cp.async.bulk.commit_group"
! CHECK: nvvm.cp.async.bulk.wait_group 0

attributes(global) subroutine test_tma_bulk_store_r4(c, n)
integer, value :: n
real(4), device :: c(n)
real(4), shared :: tmpa(1024)
integer(4) :: j, elem_count
call tma_bulk_store(tmpa, c(j), elem_count)
end subroutine

! CHECK-LABEL: func.func @_QPtest_tma_bulk_store_r4
! CHECK: nvvm.cp.async.bulk.global.shared.cta %{{.*}}, %{{.*}}, %{{.*}} : <1>, <3>
! CHECK: nvvm.inline_ptx "cp.async.bulk.commit_group"
! CHECK: nvvm.cp.async.bulk.wait_group 0

attributes(global) subroutine test_tma_bulk_store_r8(c, n)
integer, value :: n
real(8), device :: c(n)
real(8), shared :: tmpa(1024)
integer(4) :: j, elem_count
call tma_bulk_store(tmpa, c(j), elem_count)
end subroutine

! CHECK-LABEL: func.func @_QPtest_tma_bulk_store_r8
! CHECK: nvvm.cp.async.bulk.global.shared.cta %{{.*}}, %{{.*}}, %{{.*}} : <1>, <3>
! CHECK: nvvm.inline_ptx "cp.async.bulk.commit_group"
! CHECK: nvvm.cp.async.bulk.wait_group 0