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//===- TargetToDataLayout.cpp - extract data layout from TargetMachine ----===//
//
// 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/Target/LLVMIR/Transforms/Passes.h"
#include "mlir/Target/LLVMIR/Transforms/TargetUtils.h"
#include "mlir/Dialect/DLTI/DLTI.h"
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
#include "mlir/Target/LLVMIR/Import.h"
namespace mlir {
namespace LLVM {
#define GEN_PASS_DEF_LLVMTARGETTODATALAYOUT
#include "mlir/Target/LLVMIR/Transforms/Passes.h.inc"
} // namespace LLVM
} // namespace mlir
using namespace mlir;
struct TargetToDataLayoutPass
: public LLVM::impl::LLVMTargetToDataLayoutBase<TargetToDataLayoutPass> {
using LLVM::impl::LLVMTargetToDataLayoutBase<
TargetToDataLayoutPass>::LLVMTargetToDataLayoutBase;
void runOnOperation() override {
Operation *op = getOperation();
if (initializeLLVMTargets)
LLVM::detail::initializeBackendsOnce();
auto targetAttr = op->getAttrOfType<LLVM::TargetAttrInterface>(
LLVM::LLVMDialect::getTargetAttrName());
if (!targetAttr) {
op->emitError()
<< "no TargetAttrInterface-implementing attribute at key \""
<< LLVM::LLVMDialect::getTargetAttrName() << "\"";
return signalPassFailure();
}
FailureOr<llvm::DataLayout> dataLayout =
LLVM::detail::getDataLayout(targetAttr);
if (failed(dataLayout)) {
op->emitError() << "failed to obtain llvm::DataLayout for " << targetAttr;
return signalPassFailure();
}
DataLayoutSpecInterface dataLayoutSpec =
mlir::translateDataLayout(dataLayout.value(), &getContext());
if (auto existingDlSpec = op->getAttrOfType<DataLayoutSpecInterface>(
DLTIDialect::kDataLayoutAttrName)) {
dataLayoutSpec = existingDlSpec.combineWith({dataLayoutSpec});
}
op->setAttr(DLTIDialect::kDataLayoutAttrName, dataLayoutSpec);
}
};
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