96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
//===- MemRefToEmitC.cpp - MemRef to EmitC conversion ---------------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements a pass to convert memref ops into emitc ops.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "mlir/Conversion/MemRefToEmitC/MemRefToEmitCPass.h"
|
|
|
|
#include "mlir/Conversion/MemRefToEmitC/MemRefToEmitC.h"
|
|
#include "mlir/Dialect/EmitC/IR/EmitC.h"
|
|
#include "mlir/Dialect/MemRef/IR/MemRef.h"
|
|
#include "mlir/IR/Attributes.h"
|
|
#include "mlir/Pass/Pass.h"
|
|
#include "mlir/Transforms/DialectConversion.h"
|
|
#include "llvm/ADT/SmallSet.h"
|
|
#include "llvm/ADT/StringRef.h"
|
|
|
|
namespace mlir {
|
|
#define GEN_PASS_DEF_CONVERTMEMREFTOEMITC
|
|
#include "mlir/Conversion/Passes.h.inc"
|
|
} // namespace mlir
|
|
|
|
using namespace mlir;
|
|
|
|
namespace {
|
|
|
|
emitc::IncludeOp addStandardHeader(OpBuilder &builder, ModuleOp module,
|
|
StringRef headerName) {
|
|
StringAttr includeAttr = builder.getStringAttr(headerName);
|
|
return emitc::IncludeOp::create(
|
|
builder, module.getLoc(), includeAttr,
|
|
/*is_standard_include=*/builder.getUnitAttr());
|
|
}
|
|
|
|
struct ConvertMemRefToEmitCPass
|
|
: public impl::ConvertMemRefToEmitCBase<ConvertMemRefToEmitCPass> {
|
|
using Base::Base;
|
|
void runOnOperation() override {
|
|
TypeConverter converter;
|
|
ConvertMemRefToEmitCOptions options;
|
|
options.lowerToCpp = this->lowerToCpp;
|
|
// Fallback for other types.
|
|
converter.addConversion([](Type type) -> std::optional<Type> {
|
|
if (!emitc::isSupportedEmitCType(type))
|
|
return {};
|
|
return type;
|
|
});
|
|
|
|
populateMemRefToEmitCTypeConversion(converter);
|
|
|
|
RewritePatternSet patterns(&getContext());
|
|
populateMemRefToEmitCConversionPatterns(patterns, converter);
|
|
|
|
ConversionTarget target(getContext());
|
|
target.addIllegalDialect<memref::MemRefDialect>();
|
|
target.addLegalDialect<emitc::EmitCDialect>();
|
|
|
|
if (failed(applyPartialConversion(getOperation(), target,
|
|
std::move(patterns))))
|
|
return signalPassFailure();
|
|
|
|
mlir::ModuleOp module = getOperation();
|
|
llvm::SmallSet<StringRef, 4> existingHeaders;
|
|
mlir::OpBuilder builder(module.getBody(), module.getBody()->begin());
|
|
module.walk([&](mlir::emitc::IncludeOp includeOp) {
|
|
if (includeOp.getIsStandardInclude())
|
|
existingHeaders.insert(includeOp.getInclude());
|
|
});
|
|
|
|
module.walk([&](mlir::emitc::CallOpaqueOp callOp) {
|
|
StringRef expectedHeader;
|
|
if (callOp.getCallee() == alignedAllocFunctionName ||
|
|
callOp.getCallee() == mallocFunctionName)
|
|
expectedHeader = options.lowerToCpp ? cppStandardLibraryHeader
|
|
: cStandardLibraryHeader;
|
|
else if (callOp.getCallee() == memcpyFunctionName)
|
|
expectedHeader =
|
|
options.lowerToCpp ? cppStringLibraryHeader : cStringLibraryHeader;
|
|
else
|
|
return mlir::WalkResult::advance();
|
|
if (!existingHeaders.contains(expectedHeader)) {
|
|
addStandardHeader(builder, module, expectedHeader);
|
|
existingHeaders.insert(expectedHeader);
|
|
}
|
|
return mlir::WalkResult::advance();
|
|
});
|
|
}
|
|
};
|
|
} // namespace
|