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[flang][cuda] Lower match_any_sync functions to nvvm intrinsics #127942

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Merged
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Feb 20, 2025
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[flang][cuda] Lower match_any_sync functions to nvvm intrinsics #127942

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1 change: 1 addition & 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 @@ -336,6 +336,7 @@ struct IntrinsicLibrary {
template <typename Shift>
mlir::Value genMask(mlir::Type, llvm::ArrayRef<mlir::Value>);
mlir::Value genMatchAllSync(mlir::Type, llvm::ArrayRef<mlir::Value>);
mlir::Value genMatchAnySync(mlir::Type, llvm::ArrayRef<mlir::Value>);
fir::ExtendedValue genMatmul(mlir::Type, llvm::ArrayRef<fir::ExtendedValue>);
fir::ExtendedValue genMatmulTranspose(mlir::Type,
llvm::ArrayRef<fir::ExtendedValue>);
Expand Down
43 changes: 43 additions & 0 deletions flang/lib/Optimizer/Builder/IntrinsicCall.cpp
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Expand Up @@ -485,6 +485,22 @@ static constexpr IntrinsicHandler handlers[]{
&I::genMatchAllSync,
{{{"mask", asValue}, {"value", asValue}, {"pred", asAddr}}},
/*isElemental=*/false},
{"match_any_syncjd",
&I::genMatchAnySync,
{{{"mask", asValue}, {"value", asValue}}},
/*isElemental=*/false},
{"match_any_syncjf",
&I::genMatchAnySync,
{{{"mask", asValue}, {"value", asValue}}},
/*isElemental=*/false},
{"match_any_syncjj",
&I::genMatchAnySync,
{{{"mask", asValue}, {"value", asValue}}},
/*isElemental=*/false},
{"match_any_syncjx",
&I::genMatchAnySync,
{{{"mask", asValue}, {"value", asValue}}},
/*isElemental=*/false},
{"matmul",
&I::genMatmul,
{{{"matrix_a", asAddr}, {"matrix_b", asAddr}}},
Expand Down Expand Up @@ -6060,6 +6076,7 @@ mlir::Value IntrinsicLibrary::genMask(mlir::Type resultType,
return result;
}

// MATCH_ALL_SYNC
mlir::Value
IntrinsicLibrary::genMatchAllSync(mlir::Type resultType,
llvm::ArrayRef<mlir::Value> args) {
Expand Down Expand Up @@ -6096,6 +6113,32 @@ IntrinsicLibrary::genMatchAllSync(mlir::Type resultType,
return value;
}

// MATCH_ANY_SYNC
mlir::Value
IntrinsicLibrary::genMatchAnySync(mlir::Type resultType,
llvm::ArrayRef<mlir::Value> args) {
assert(args.size() == 2);
bool is32 = args[1].getType().isInteger(32) || args[1].getType().isF32();

llvm::StringRef funcName =
is32 ? "llvm.nvvm.match.any.sync.i32p" : "llvm.nvvm.match.any.sync.i64p";
mlir::MLIRContext *context = builder.getContext();
mlir::Type i32Ty = builder.getI32Type();
mlir::Type i64Ty = builder.getI64Type();
mlir::Type valTy = is32 ? i32Ty : i64Ty;

mlir::FunctionType ftype =
mlir::FunctionType::get(context, {i32Ty, valTy}, {i32Ty});
auto funcOp = builder.createFunction(loc, funcName, ftype);
llvm::SmallVector<mlir::Value> filteredArgs;
filteredArgs.push_back(args[0]);
if (args[1].getType().isF32() || args[1].getType().isF64())
filteredArgs.push_back(builder.create<fir::ConvertOp>(loc, valTy, args[1]));
else
filteredArgs.push_back(args[1]);
return builder.create<fir::CallOp>(loc, funcOp, filteredArgs).getResult(0);
}

// MATMUL
fir::ExtendedValue
IntrinsicLibrary::genMatmul(mlir::Type resultType,
Expand Down
23 changes: 23 additions & 0 deletions flang/module/cudadevice.f90
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Expand Up @@ -589,4 +589,27 @@ attributes(device) integer function match_all_syncjd(mask, val, pred)
end function
end interface

interface match_any_sync
attributes(device) integer function match_any_syncjj(mask, val)
!dir$ ignore_tkr(d) mask, (d) val
integer(4), value :: mask
integer(4), value :: val
end function
attributes(device) integer function match_any_syncjx(mask, val)
!dir$ ignore_tkr(d) mask, (d) val
integer(4), value :: mask
integer(8), value :: val
end function
attributes(device) integer function match_any_syncjf(mask, val)
!dir$ ignore_tkr(d) mask, (d) val
integer(4), value :: mask
real(4), value :: val
end function
attributes(device) integer function match_any_syncjd(mask, val)
!dir$ ignore_tkr(d) mask, (d) val
integer(4), value :: mask
real(8), value :: val
end function
end interface

end module
21 changes: 21 additions & 0 deletions flang/test/Lower/CUDA/cuda-device-proc.cuf
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Expand Up @@ -131,6 +131,25 @@ end subroutine
! CHECK: fir.convert %{{.*}} : (f64) -> i64
! CHECK: fir.call @llvm.nvvm.match.all.sync.i64p

attributes(device) subroutine testMatchAny()
integer :: a, mask, v32
integer(8) :: v64
real(4) :: r4
real(8) :: r8
a = match_any_sync(mask, v32)
a = match_any_sync(mask, v64)
a = match_any_sync(mask, r4)
a = match_any_sync(mask, r8)
end subroutine

! CHECK-LABEL: func.func @_QPtestmatchany()
! CHECK: fir.call @llvm.nvvm.match.any.sync.i32p
! CHECK: fir.call @llvm.nvvm.match.any.sync.i64p
! CHECK: fir.convert %{{.*}} : (f32) -> i32
! CHECK: fir.call @llvm.nvvm.match.any.sync.i32p
! CHECK: fir.convert %{{.*}} : (f64) -> i64
! CHECK: fir.call @llvm.nvvm.match.any.sync.i64p

! CHECK: func.func private @llvm.nvvm.barrier0()
! CHECK: func.func private @llvm.nvvm.bar.warp.sync(i32)
! CHECK: func.func private @llvm.nvvm.membar.gl()
Expand All @@ -141,3 +160,5 @@ end subroutine
! CHECK: func.func private @llvm.nvvm.barrier0.or(i32) -> i32
! CHECK: func.func private @llvm.nvvm.match.all.sync.i32p(i32, i32) -> tuple<i32, i1>
! CHECK: func.func private @llvm.nvvm.match.all.sync.i64p(i32, i64) -> tuple<i32, i1>
! CHECK: func.func private @llvm.nvvm.match.any.sync.i32p(i32, i32) -> i32
! CHECK: func.func private @llvm.nvvm.match.any.sync.i64p(i32, i64) -> i32