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[python] Remove unused MLIR components #2443

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[python] Remove unused MLIR components #2443

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2 changes: 0 additions & 2 deletions python/cudaq/kernel/ast_bridge.py
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Original file line number Diff line number Diff line change
Expand Up @@ -123,8 +123,6 @@ def __init__(self, capturedDataStorage: CapturedDataStorage, **kwargs):
else:
self.ctx = Context()
register_all_dialects(self.ctx)
quake.register_dialect(self.ctx)
cc.register_dialect(self.ctx)
cudaq_runtime.registerLLVMDialectTranslation(self.ctx)
self.loc = Location.unknown(context=self.ctx)
self.module = Module.create(loc=self.loc)
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5 changes: 2 additions & 3 deletions python/cudaq/kernel/kernel_builder.py
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Expand Up @@ -37,7 +37,8 @@

# We need static initializers to run in the CAPI `ExecutionEngine`,
# so here we run a simple JIT compile at global scope
with Context():
with Context() as ctx:
register_all_dialects(ctx)
module = Module.parse(r"""
llvm.func @none() {
llvm.return
Expand Down Expand Up @@ -246,8 +247,6 @@ class PyKernel(object):
def __init__(self, argTypeList):
self.ctx = Context()
register_all_dialects(self.ctx)
quake.register_dialect(self.ctx)
cc.register_dialect(self.ctx)
cudaq_runtime.registerLLVMDialectTranslation(self.ctx)

self.metadata = {'conditionalOnMeasure': False}
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9 changes: 9 additions & 0 deletions python/cudaq/mlir/__init__.py
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@@ -0,0 +1,9 @@
# ============================================================================ #
# Copyright (c) 2022 - 2024 NVIDIA Corporation & Affiliates. #
# All rights reserved. #
# #
# This source code and the accompanying materials are made available under #
# the terms of the Apache License 2.0 which accompanies this distribution. #
# ============================================================================ #

from ._mlir_libs._quakeDialects import register_all_dialects
22 changes: 15 additions & 7 deletions python/extension/CMakeLists.txt
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Expand Up @@ -119,10 +119,14 @@ add_mlir_python_common_capi_library(CUDAQuantumPythonCAPI
RELATIVE_INSTALL_ROOT "../.."
DECLARED_SOURCES
CUDAQuantumPythonSources
# TODO: Remove this in favor of showing fine grained registration once
# available.
MLIRPythonExtension.RegisterEverything
MLIRPythonSources.Core
MLIRPythonSources.Dialects.arith
MLIRPythonSources.Dialects.builtin
MLIRPythonSources.Dialects.cf
MLIRPythonSources.Dialects.complex
MLIRPythonSources.Dialects.func
MLIRPythonSources.Dialects.math
MLIRPythonSources.ExecutionEngine
)

################################################################################
Expand All @@ -134,10 +138,14 @@ add_mlir_python_modules(CUDAQuantumPythonModules
INSTALL_PREFIX "cudaq/mlir"
DECLARED_SOURCES
CUDAQuantumPythonSources
# TODO: Remove this in favor of showing fine grained registration once
# available.
MLIRPythonExtension.RegisterEverything
MLIRPythonSources
MLIRPythonSources.Core
MLIRPythonSources.Dialects.arith
MLIRPythonSources.Dialects.builtin
MLIRPythonSources.Dialects.cf
MLIRPythonSources.Dialects.complex
MLIRPythonSources.Dialects.func
MLIRPythonSources.Dialects.math
MLIRPythonSources.ExecutionEngine
COMMON_CAPI_LINK_LIBS
CUDAQuantumPythonCAPI
)
Expand Down
63 changes: 18 additions & 45 deletions python/runtime/mlir/py_register_dialects.cpp
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Expand Up @@ -6,19 +6,15 @@
* the terms of the Apache License 2.0 which accompanies this distribution. *
******************************************************************************/

#include "py_register_dialects.h"
#include "cudaq/Optimizer/Builder/Intrinsics.h"
#include "cudaq/Optimizer/CAPI/Dialects.h"
#include "cudaq/Optimizer/CodeGen/Passes.h"
#include "cudaq/Optimizer/CodeGen/Pipelines.h"
#include "cudaq/Optimizer/Dialect/CC/CCDialect.h"
#include "cudaq/Optimizer/Dialect/CC/CCOps.h"
#include "cudaq/Optimizer/Dialect/CC/CCTypes.h"
#include "cudaq/Optimizer/Dialect/Quake/QuakeDialect.h"
#include "cudaq/Optimizer/Dialect/Quake/QuakeTypes.h"
#include "cudaq/Optimizer/InitAllDialects.h"
#include "cudaq/Optimizer/InitAllPasses.h"
#include "cudaq/Optimizer/Transforms/Passes.h"
#include "mlir/Bindings/Python/PybindAdaptors.h"
#include "mlir/InitAllDialects.h"
#include "mlir/CAPI/IR.h"
#include <fmt/core.h>
#include <pybind11/complex.h>
#include <pybind11/stl.h>
Expand All @@ -27,27 +23,9 @@ namespace py = pybind11;
using namespace mlir::python::adaptors;
using namespace mlir;

namespace cudaq {
static bool registered = false;

void registerQuakeDialectAndTypes(py::module &m) {
static void registerQuakeTypes(py::module &m) {
auto quakeMod = m.def_submodule("quake");

quakeMod.def(
"register_dialect",
[](MlirContext context, bool load) {
MlirDialectHandle handle = mlirGetDialectHandle__quake__();
mlirDialectHandleRegisterDialect(handle, context);
if (load)
mlirDialectHandleLoadDialect(handle, context);

if (!registered) {
cudaq::registerCudaqPassesAndPipelines();
registered = true;
}
},
py::arg("context") = py::none(), py::arg("load") = true);

mlir_type_subclass(quakeMod, "RefType", [](MlirType type) {
return unwrap(type).isa<quake::RefType>();
}).def_classmethod("get", [](py::object cls, MlirContext ctx) {
Expand Down Expand Up @@ -138,21 +116,10 @@ void registerQuakeDialectAndTypes(py::module &m) {
});
}

void registerCCDialectAndTypes(py::module &m) {
static void registerCCTypes(py::module &m) {

auto ccMod = m.def_submodule("cc");

ccMod.def(
"register_dialect",
[](MlirContext context, bool load) {
MlirDialectHandle ccHandle = mlirGetDialectHandle__cc__();
mlirDialectHandleRegisterDialect(ccHandle, context);
if (load) {
mlirDialectHandleLoadDialect(ccHandle, context);
}
},
py::arg("context") = py::none(), py::arg("load") = true);

mlir_type_subclass(ccMod, "CharspanType", [](MlirType type) {
return unwrap(type).isa<cudaq::cc::CharspanType>();
}).def_classmethod("get", [](py::object cls, MlirContext ctx) {
Expand Down Expand Up @@ -292,10 +259,9 @@ void registerCCDialectAndTypes(py::module &m) {
});
}

void bindRegisterDialects(py::module &mod) {
registerQuakeDialectAndTypes(mod);
registerCCDialectAndTypes(mod);
static bool registered = false;

void cudaq::bindRegisterDialects(py::module &mod) {
mod.def("load_intrinsic", [](MlirModule module, std::string name) {
auto unwrapped = unwrap(module);
cudaq::IRBuilder builder = IRBuilder::atBlockEnd(unwrapped.getBody());
Expand All @@ -305,14 +271,22 @@ void bindRegisterDialects(py::module &mod) {

mod.def("register_all_dialects", [](MlirContext context) {
DialectRegistry registry;
registry.insert<quake::QuakeDialect, cudaq::cc::CCDialect>();
cudaq::registerAllDialects(registry);
cudaq::opt::registerCodeGenDialect(registry);
registerAllDialects(registry);
auto *mlirContext = unwrap(context);
MLIRContext *mlirContext = unwrap(context);
mlirContext->appendDialectRegistry(registry);
mlirContext->loadAllAvailableDialects();
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Does loadAllAvailableDialects actually load Quake, CC, and CodeGen?

Do we need an explicit test to verify that all the dialects we expect to be loaded are loaded?

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loadAllAvailableDialects() will load all dialects registered in the context. So, Quake and CC will be loaded. The CodeGen dialect is not registered in cudaq::registerAllDialects. I'm not sure why, but its being registered in other places and in different ways:

cuda-quantum/tools/cudaq-opt/cudaq-opt.cpp

Line 79 in 7903c8b

registry.insert<cudaq::codegen::CodeGenDialect>();

cuda-quantum/runtime/common/RuntimeMLIR.cpp

Line 86 in 7903c8b

cudaq::opt::registerCodeGenDialect(registry);

I can make it uniform in a follow-up PR.

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The codegen dialect was intended to be sort of second-class in that it would only be applicable at codegen time. The point being we don't want folks to start using it in ad hoc ways in random passes, etc. Adding a few landmines was sort of the idea.

OTOH, we could clean it up a bit and remove some of those hurdles. We still don't want that dialect used "in the wild" though...

});

// Register type and passes once, when the module is loaded.
registerQuakeTypes(mod);
registerCCTypes(mod);

if (!registered) {
cudaq::registerAllPasses();
registered = true;
}

mod.def("gen_vector_of_complex_constant", [](MlirLocation loc,
MlirModule module,
std::string name,
Expand All @@ -324,4 +298,3 @@ void bindRegisterDialects(py::module &mod) {
builder.genVectorOfConstants(unwrap(loc), modOp, name, newValues);
});
}
} // namespace cudaq
3 changes: 2 additions & 1 deletion python/tests/mlir/bare.py
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Expand Up @@ -8,12 +8,13 @@

# RUN: PYTHONPATH=../../ python3 %s | FileCheck %s

from cudaq.mlir import register_all_dialects
from cudaq.mlir.ir import *
from cudaq.mlir.dialects import quake
from cudaq.mlir.dialects import builtin, func, arith

with Context() as ctx:
quake.register_dialect()
register_all_dialects(ctx)
m = Module.create(loc=Location.unknown())
with InsertionPoint(m.body), Location.unknown():
f = func.FuncOp('main', ([], []))
Expand Down
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