llvm/llvm/lib/Target/Hexagon/HexagonOptimizeSZextends.cpp

//===- HexagonOptimizeSZextends.cpp - Remove unnecessary argument extends -===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Pass that removes sign extends for function parameters. These parameters
// are already sign extended by the caller per Hexagon's ABI
//
//===----------------------------------------------------------------------===//

#include "Hexagon.h"
#include "llvm/CodeGen/StackProtector.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/IntrinsicsHexagon.h"
#include "llvm/Pass.h"
#include "llvm/Transforms/Scalar.h"

usingnamespacellvm;

namespace llvm {
  FunctionPass *createHexagonOptimizeSZextends();
  void initializeHexagonOptimizeSZextendsPass(PassRegistry&);
}

namespace {
  struct HexagonOptimizeSZextends : public FunctionPass { … };
}

char HexagonOptimizeSZextends::ID = …;

INITIALIZE_PASS(…)

bool HexagonOptimizeSZextends::intrinsicAlreadySextended(Intrinsic::ID IntID) { … }

bool HexagonOptimizeSZextends::runOnFunction(Function &F) { … }


FunctionPass *llvm::createHexagonOptimizeSZextends() { … }