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//===- ExecutionEngine.cpp - C API for MLIR JIT ---------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "mlir-c/ExecutionEngine.h"
#include "mlir/CAPI/ExecutionEngine.h"
#include "mlir/CAPI/IR.h"
#include "mlir/CAPI/Support.h"
#include "mlir/ExecutionEngine/OptUtils.h"
#include "mlir/Target/LLVMIR/Dialect/LLVMIR/LLVMToLLVMIRTranslation.h"
#include "llvm/ExecutionEngine/Orc/Mangling.h"
#include "llvm/Support/TargetSelect.h"
using namespace mlir;
extern "C" MlirExecutionEngine
mlirExecutionEngineCreate(MlirModule op, int optLevel, int numPaths,
const MlirStringRef *sharedLibPaths) {
static bool initOnce = [] {
llvm::InitializeNativeTarget();
llvm::InitializeNativeTargetAsmPrinter();
return true;
}();
(void)initOnce;
mlir::registerLLVMDialectTranslation(*unwrap(op)->getContext());
auto tmBuilderOrError = llvm::orc::JITTargetMachineBuilder::detectHost();
if (!tmBuilderOrError) {
llvm::errs() << "Failed to create a JITTargetMachineBuilder for the host\n";
return MlirExecutionEngine{nullptr};
}
auto tmOrError = tmBuilderOrError->createTargetMachine();
if (!tmOrError) {
llvm::errs() << "Failed to create a TargetMachine for the host\n";
return MlirExecutionEngine{nullptr};
}
SmallVector<StringRef> libPaths;
for (unsigned i = 0; i < static_cast<unsigned>(numPaths); ++i)
libPaths.push_back(sharedLibPaths[i].data);
// Create a transformer to run all LLVM optimization passes at the
// specified optimization level.
auto llvmOptLevel = static_cast<llvm::CodeGenOpt::Level>(optLevel);
auto transformer = mlir::makeLLVMPassesTransformer(
/*passes=*/{}, llvmOptLevel, /*targetMachine=*/tmOrError->get());
auto jitOrError =
ExecutionEngine::create(unwrap(op), /*llvmModuleBuilder=*/{}, transformer,
llvmOptLevel, libPaths);
if (!jitOrError) {
consumeError(jitOrError.takeError());
return MlirExecutionEngine{nullptr};
}
return wrap(jitOrError->release());
}
extern "C" void mlirExecutionEngineDestroy(MlirExecutionEngine jit) {
delete (unwrap(jit));
}
extern "C" MlirLogicalResult
mlirExecutionEngineInvokePacked(MlirExecutionEngine jit, MlirStringRef name,
void **arguments) {
const std::string ifaceName = ("_mlir_ciface_" + unwrap(name)).str();
llvm::Error error = unwrap(jit)->invokePacked(
ifaceName, MutableArrayRef<void *>{arguments, (size_t)0});
if (error)
return wrap(failure());
return wrap(success());
}
extern "C" void *mlirExecutionEngineLookup(MlirExecutionEngine jit,
MlirStringRef name) {
auto expectedFPtr = unwrap(jit)->lookup(unwrap(name));
if (!expectedFPtr)
return nullptr;
return reinterpret_cast<void *>(*expectedFPtr);
}
extern "C" void mlirExecutionEngineRegisterSymbol(MlirExecutionEngine jit,
MlirStringRef name,
void *sym) {
unwrap(jit)->registerSymbols([&](llvm::orc::MangleAndInterner interner) {
llvm::orc::SymbolMap symbolMap;
symbolMap[interner(unwrap(name))] =
llvm::JITEvaluatedSymbol::fromPointer(sym);
return symbolMap;
});
}
extern "C" void mlirExecutionEngineDumpToObjectFile(MlirExecutionEngine jit,
MlirStringRef name) {
unwrap(jit)->dumpToObjectFile(unwrap(name));
}
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