From: Rahul Kayaith Date: Mon, 8 May 2023 03:56:04 +0000 (-0400) Subject: [mlir][python] Allow specifying block arg locations X-Git-Tag: upstream/17.0.6~9000 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4d0d295b618edfc937d5bf247f0853df5c70cb96;p=platform%2Fupstream%2Fllvm.git [mlir][python] Allow specifying block arg locations Currently blocks are always created with UnknownLoc's for their arguments. This adds an `arg_locs` argument to all block creation APIs, which takes an optional sequence of locations to use, one per block argument. If no locations are supplied, the current Location context is used. Reviewed By: ftynse Differential Revision: https://reviews.llvm.org/D150084 --- diff --git a/mlir/lib/Bindings/Python/IRCore.cpp b/mlir/lib/Bindings/Python/IRCore.cpp index 7ffa464..2158a4c 100644 --- a/mlir/lib/Bindings/Python/IRCore.cpp +++ b/mlir/lib/Bindings/Python/IRCore.cpp @@ -193,6 +193,31 @@ static MlirStringRef toMlirStringRef(const std::string &s) { return mlirStringRefCreate(s.data(), s.size()); } +/// Create a block, using the current location context if no locations are +/// specified. +static MlirBlock createBlock(const py::sequence &pyArgTypes, + const std::optional &pyArgLocs) { + SmallVector argTypes; + argTypes.reserve(pyArgTypes.size()); + for (const auto &pyType : pyArgTypes) + argTypes.push_back(pyType.cast()); + + SmallVector argLocs; + if (pyArgLocs) { + argLocs.reserve(pyArgLocs->size()); + for (const auto &pyLoc : *pyArgLocs) + argLocs.push_back(pyLoc.cast()); + } else if (!argTypes.empty()) { + argLocs.assign(argTypes.size(), DefaultingPyLocation::resolve()); + } + + if (argTypes.size() != argLocs.size()) + throw py::value_error(("Expected " + Twine(argTypes.size()) + + " locations, got: " + Twine(argLocs.size())) + .str()); + return mlirBlockCreate(argTypes.size(), argTypes.data(), argLocs.data()); +} + /// Wrapper for the global LLVM debugging flag. struct PyGlobalDebugFlag { static void set(py::object &o, bool enable) { mlirEnableGlobalDebug(enable); } @@ -364,21 +389,10 @@ public: throw SetPyError(PyExc_IndexError, "attempt to access out of bounds block"); } - PyBlock appendBlock(const py::args &pyArgTypes) { + PyBlock appendBlock(const py::args &pyArgTypes, + const std::optional &pyArgLocs) { operation->checkValid(); - llvm::SmallVector argTypes; - llvm::SmallVector argLocs; - argTypes.reserve(pyArgTypes.size()); - argLocs.reserve(pyArgTypes.size()); - for (auto &pyArg : pyArgTypes) { - argTypes.push_back(pyArg.cast()); - // TODO: Pass in a proper location here. - argLocs.push_back( - mlirLocationUnknownGet(mlirTypeGetContext(argTypes.back()))); - } - - MlirBlock block = - mlirBlockCreate(argTypes.size(), argTypes.data(), argLocs.data()); + MlirBlock block = createBlock(pyArgTypes, pyArgLocs); mlirRegionAppendOwnedBlock(region, block); return PyBlock(operation, block); } @@ -388,7 +402,8 @@ public: .def("__getitem__", &PyBlockList::dunderGetItem) .def("__iter__", &PyBlockList::dunderIter) .def("__len__", &PyBlockList::dunderLen) - .def("append", &PyBlockList::appendBlock, kAppendBlockDocstring); + .def("append", &PyBlockList::appendBlock, kAppendBlockDocstring, + py::arg("arg_locs") = std::nullopt); } private: @@ -2966,27 +2981,17 @@ void mlir::python::populateIRCore(py::module &m) { "Returns a forward-optimized sequence of operations.") .def_static( "create_at_start", - [](PyRegion &parent, py::list pyArgTypes) { + [](PyRegion &parent, const py::list &pyArgTypes, + const std::optional &pyArgLocs) { parent.checkValid(); - llvm::SmallVector argTypes; - llvm::SmallVector argLocs; - argTypes.reserve(pyArgTypes.size()); - argLocs.reserve(pyArgTypes.size()); - for (auto &pyArg : pyArgTypes) { - argTypes.push_back(pyArg.cast()); - // TODO: Pass in a proper location here. - argLocs.push_back( - mlirLocationUnknownGet(mlirTypeGetContext(argTypes.back()))); - } - - MlirBlock block = mlirBlockCreate(argTypes.size(), argTypes.data(), - argLocs.data()); + MlirBlock block = createBlock(pyArgTypes, pyArgLocs); mlirRegionInsertOwnedBlock(parent, 0, block); return PyBlock(parent.getParentOperation(), block); }, py::arg("parent"), py::arg("arg_types") = py::list(), + py::arg("arg_locs") = std::nullopt, "Creates and returns a new Block at the beginning of the given " - "region (with given argument types).") + "region (with given argument types and locations).") .def( "append_to", [](PyBlock &self, PyRegion ®ion) { @@ -2998,50 +3003,30 @@ void mlir::python::populateIRCore(py::module &m) { "Append this block to a region, transferring ownership if necessary") .def( "create_before", - [](PyBlock &self, py::args pyArgTypes) { + [](PyBlock &self, const py::args &pyArgTypes, + const std::optional &pyArgLocs) { self.checkValid(); - llvm::SmallVector argTypes; - llvm::SmallVector argLocs; - argTypes.reserve(pyArgTypes.size()); - argLocs.reserve(pyArgTypes.size()); - for (auto &pyArg : pyArgTypes) { - argTypes.push_back(pyArg.cast()); - // TODO: Pass in a proper location here. - argLocs.push_back( - mlirLocationUnknownGet(mlirTypeGetContext(argTypes.back()))); - } - - MlirBlock block = mlirBlockCreate(argTypes.size(), argTypes.data(), - argLocs.data()); + MlirBlock block = createBlock(pyArgTypes, pyArgLocs); MlirRegion region = mlirBlockGetParentRegion(self.get()); mlirRegionInsertOwnedBlockBefore(region, self.get(), block); return PyBlock(self.getParentOperation(), block); }, + py::arg("arg_locs") = std::nullopt, "Creates and returns a new Block before this block " - "(with given argument types).") + "(with given argument types and locations).") .def( "create_after", - [](PyBlock &self, py::args pyArgTypes) { + [](PyBlock &self, const py::args &pyArgTypes, + const std::optional &pyArgLocs) { self.checkValid(); - llvm::SmallVector argTypes; - llvm::SmallVector argLocs; - argTypes.reserve(pyArgTypes.size()); - argLocs.reserve(pyArgTypes.size()); - for (auto &pyArg : pyArgTypes) { - argTypes.push_back(pyArg.cast()); - - // TODO: Pass in a proper location here. - argLocs.push_back( - mlirLocationUnknownGet(mlirTypeGetContext(argTypes.back()))); - } - MlirBlock block = mlirBlockCreate(argTypes.size(), argTypes.data(), - argLocs.data()); + MlirBlock block = createBlock(pyArgTypes, pyArgLocs); MlirRegion region = mlirBlockGetParentRegion(self.get()); mlirRegionInsertOwnedBlockAfter(region, self.get(), block); return PyBlock(self.getParentOperation(), block); }, + py::arg("arg_locs") = std::nullopt, "Creates and returns a new Block after this block " - "(with given argument types).") + "(with given argument types and locations).") .def( "__iter__", [](PyBlock &self) { diff --git a/mlir/python/mlir/dialects/_func_ops_ext.py b/mlir/python/mlir/dialects/_func_ops_ext.py index 79577463..56df423 100644 --- a/mlir/python/mlir/dialects/_func_ops_ext.py +++ b/mlir/python/mlir/dialects/_func_ops_ext.py @@ -90,7 +90,7 @@ class FuncOp: raise IndexError('External function does not have a body') return self.regions[0].blocks[0] - def add_entry_block(self): + def add_entry_block(self, arg_locs: Optional[Sequence[Location]] = None): """ Add an entry block to the function body using the function signature to infer block arguments. @@ -98,7 +98,7 @@ class FuncOp: """ if not self.is_external: raise IndexError('The function already has an entry block!') - self.body.blocks.append(*self.type.inputs) + self.body.blocks.append(*self.type.inputs, arg_locs=arg_locs) return self.body.blocks[0] @property diff --git a/mlir/test/python/ir/blocks.py b/mlir/test/python/ir/blocks.py index 47aafca..e929d79 100644 --- a/mlir/test/python/ir/blocks.py +++ b/mlir/test/python/ir/blocks.py @@ -18,28 +18,28 @@ def run(f): # CHECK-LABEL: TEST: testBlockCreation -# CHECK: func @test(%[[ARG0:.*]]: i32, %[[ARG1:.*]]: i16) +# CHECK: func @test(%[[ARG0:.*]]: i32 loc("arg0"), %[[ARG1:.*]]: i16 loc("arg1")) # CHECK: cf.br ^bb1(%[[ARG1]] : i16) -# CHECK: ^bb1(%[[PHI0:.*]]: i16): +# CHECK: ^bb1(%[[PHI0:.*]]: i16 loc("middle")): # CHECK: cf.br ^bb2(%[[ARG0]] : i32) -# CHECK: ^bb2(%[[PHI1:.*]]: i32): +# CHECK: ^bb2(%[[PHI1:.*]]: i32 loc("successor")): # CHECK: return @run def testBlockCreation(): with Context() as ctx, Location.unknown(): - module = Module.create() + module = builtin.ModuleOp() with InsertionPoint(module.body): f_type = FunctionType.get( [IntegerType.get_signless(32), IntegerType.get_signless(16)], []) f_op = func.FuncOp("test", f_type) - entry_block = f_op.add_entry_block() + entry_block = f_op.add_entry_block([Location.name("arg0"), Location.name("arg1")]) i32_arg, i16_arg = entry_block.arguments - successor_block = entry_block.create_after(i32_arg.type) + successor_block = entry_block.create_after(i32_arg.type, arg_locs=[Location.name("successor")]) with InsertionPoint(successor_block) as successor_ip: assert successor_ip.block == successor_block func.ReturnOp([]) - middle_block = successor_block.create_before(i16_arg.type) + middle_block = successor_block.create_before(i16_arg.type, arg_locs=[Location.name("middle")]) with InsertionPoint(entry_block) as entry_ip: assert entry_ip.block == entry_block @@ -48,27 +48,57 @@ def testBlockCreation(): with InsertionPoint(middle_block) as middle_ip: assert middle_ip.block == middle_block cf.BranchOp([i32_arg], dest=successor_block) - print(module.operation) + module.print(enable_debug_info=True) # Ensure region back references are coherent. assert entry_block.region == middle_block.region == successor_block.region +# CHECK-LABEL: TEST: testBlockCreationArgLocs +@run +def testBlockCreationArgLocs(): + with Context() as ctx: + ctx.allow_unregistered_dialects = True + f32 = F32Type.get() + op = Operation.create("test", regions=1, loc=Location.unknown()) + blocks = op.regions[0].blocks + + with Location.name("default_loc"): + blocks.append(f32) + blocks.append() + # CHECK: ^bb0(%{{.+}}: f32 loc("default_loc")): + # CHECK-NEXT: ^bb1: + op.print(enable_debug_info=True) + + try: + blocks.append(f32) + except RuntimeError as err: + # CHECK: Missing loc: An MLIR function requires a Location but none was provided + print("Missing loc:", err) + + try: + blocks.append(f32, f32, arg_locs=[Location.unknown()]) + except ValueError as err: + # CHECK: Wrong loc count: Expected 2 locations, got: 1 + print("Wrong loc count:", err) + + # CHECK-LABEL: TEST: testFirstBlockCreation -# CHECK: func @test(%{{.*}}: f32) +# CHECK: func @test(%{{.*}}: f32 loc("arg_loc")) # CHECK: return @run def testFirstBlockCreation(): with Context() as ctx, Location.unknown(): - module = Module.create() + module = builtin.ModuleOp() f32 = F32Type.get() with InsertionPoint(module.body): f = func.FuncOp("test", ([f32], [])) - entry_block = Block.create_at_start(f.operation.regions[0], [f32]) + entry_block = Block.create_at_start(f.operation.regions[0], + [f32], [Location.name("arg_loc")]) with InsertionPoint(entry_block): func.ReturnOp([]) - print(module) - assert module.operation.verify() + module.print(enable_debug_info=True) + assert module.verify() assert f.body.blocks[0] == entry_block