llvm/llvm/lib/Target/WebAssembly/WebAssemblyAddMissingPrototypes.cpp

//===-- WebAssemblyAddMissingPrototypes.cpp - Fix prototypeless functions -===//
//
// 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
//
//===----------------------------------------------------------------------===//
///
/// \file
/// Add prototypes to prototypes-less functions.
///
/// WebAssembly has strict function prototype checking so we need functions
/// declarations to match the call sites.  Clang treats prototype-less functions
/// as varargs (foo(...)) which happens to work on existing platforms but
/// doesn't under WebAssembly.  This pass will find all the call sites of each
/// prototype-less function, ensure they agree, and then set the signature
/// on the function declaration accordingly.
///
//===----------------------------------------------------------------------===//

#include "WebAssembly.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Operator.h"
#include "llvm/Pass.h"
#include "llvm/Support/Debug.h"
#include "llvm/Transforms/Utils/Local.h"
#include "llvm/Transforms/Utils/ModuleUtils.h"
usingnamespacellvm;

#define DEBUG_TYPE …

namespace {
class WebAssemblyAddMissingPrototypes final : public ModulePass { … };
} // End anonymous namespace

char WebAssemblyAddMissingPrototypes::ID = …;
INITIALIZE_PASS(…)

ModulePass *llvm::createWebAssemblyAddMissingPrototypes() { … }

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