LLVMInterfaces.cpp

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//===- LLVMInterfaces.cpp - LLVM Interfaces ---------------------*- C++ -*-===//
//
// 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 defines op interfaces for the LLVM dialect in MLIR.
//
//===----------------------------------------------------------------------===//
 
#include "mlir/Dialect/LLVMIR/LLVMInterfaces.h"
 
#include "mlir/Dialect/LLVMIR/LLVMDialect.h"
#include "mlir/IR/PatternMatch.h"
 
using namespace mlir;
using namespace mlir::LLVM;
 
/// Verifies that all elements of `array` are instances of `Attr`.
template <class AttrT>
static LogicalResult isArrayOf(Operation *op, ArrayAttr array) {
  for (Attribute iter : array)
    if (!isa<AttrT>(iter))
      return op->emitOpError("expected op to return array of ")
             << AttrT::getMnemonic() << " attributes";
  return success();
}
 
//===----------------------------------------------------------------------===//
// AccessGroupOpInterface
//===----------------------------------------------------------------------===//
 
LogicalResult mlir::LLVM::detail::verifyAccessGroupOpInterface(Operation *op) {
  auto iface = cast<AccessGroupOpInterface>(op);
  ArrayAttr accessGroups = iface.getAccessGroupsOrNull();
  if (!accessGroups)
    return success();
 
  return isArrayOf<AccessGroupAttr>(op, accessGroups);
}
 
//===----------------------------------------------------------------------===//
// AliasAnalysisOpInterface
//===----------------------------------------------------------------------===//
 
LogicalResult
mlir::LLVM::detail::verifyAliasAnalysisOpInterface(Operation *op) {
  auto iface = cast<AliasAnalysisOpInterface>(op);
 
  if (auto aliasScopes = iface.getAliasScopesOrNull())
    if (failed(isArrayOf<AliasScopeAttr>(op, aliasScopes)))
      return failure();
 
  if (auto noAliasScopes = iface.getNoAliasScopesOrNull())
    if (failed(isArrayOf<AliasScopeAttr>(op, noAliasScopes)))
      return failure();
 
  ArrayAttr tags = iface.getTBAATagsOrNull();
  if (!tags)
    return success();
 
  return isArrayOf<TBAATagAttr>(op, tags);
}
 
//===----------------------------------------------------------------------===//
// DereferenceableOpInterface
//===----------------------------------------------------------------------===//
 
LogicalResult
mlir::LLVM::detail::verifyDereferenceableOpInterface(Operation *op) {
  auto iface = cast<DereferenceableOpInterface>(op);
 
  if (auto derefAttr = iface.getDereferenceableOrNull())
    if (op->getNumResults() != 1 ||
        !mlir::isa<LLVMPointerType>(op->getResult(0).getType()))
      return op->emitOpError(
          "expected op to return a single LLVM pointer type");
 
  return success();
}
 
SmallVector<Value> mlir::LLVM::AtomicCmpXchgOp::getAccessedOperands() {
  return {getPtr()};
}
 
SmallVector<Value> mlir::LLVM::AtomicRMWOp::getAccessedOperands() {
  return {getPtr()};
}
 
SmallVector<Value> mlir::LLVM::LoadOp::getAccessedOperands() {
  return {getAddr()};
}
 
SmallVector<Value> mlir::LLVM::StoreOp::getAccessedOperands() {
  return {getAddr()};
}
 
SmallVector<Value> mlir::LLVM::MemcpyOp::getAccessedOperands() {
  return {getDst(), getSrc()};
}
 
SmallVector<Value> mlir::LLVM::MemcpyInlineOp::getAccessedOperands() {
  return {getDst(), getSrc()};
}
 
SmallVector<Value> mlir::LLVM::MemmoveOp::getAccessedOperands() {
  return {getDst(), getSrc()};
}
 
SmallVector<Value> mlir::LLVM::MemsetOp::getAccessedOperands() {
  return {getDst()};
}
 
SmallVector<Value> mlir::LLVM::MemsetInlineOp::getAccessedOperands() {
  return {getDst()};
}
 
SmallVector<Value> mlir::LLVM::CallOp::getAccessedOperands() {
  return llvm::filter_to_vector(getArgOperands(), [](Value arg) {
    return isa<LLVMPointerType>(arg.getType());
  });
}
 
#include "mlir/Dialect/LLVMIR/LLVMInterfaces.cpp.inc"