llvm/llvm/lib/Target/Mips/MipsOs16.cpp

//===---- MipsOs16.cpp for Mips Option -Os16                       --------===//
//
// 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 an optimization phase for the MIPS target.
//
//===----------------------------------------------------------------------===//

#include "Mips.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/Module.h"
#include "llvm/Pass.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"

usingnamespacellvm;

#define DEBUG_TYPE …

static cl::opt<std::string> Mips32FunctionMask(
  "mips32-function-mask",
  cl::init(""),
  cl::desc("Force function to be mips32"),
  cl::Hidden);

namespace {
  class MipsOs16 : public ModulePass { … };

  char MipsOs16::ID = …;
}

// Figure out if we need float point based on the function signature.
// We need to move variables in and/or out of floating point
// registers because of the ABI
//
static  bool needsFPFromSig(Function &F) { … }

// Figure out if the function will need floating point operations
//
static bool needsFP(Function &F) { … }


bool MipsOs16::runOnModule(Module &M) { … }

ModulePass *llvm::createMipsOs16Pass() { … }