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//===--- GenControl.cpp - IR Generation for Control Flow ------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file implements general IR generation for control flow.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/STLExtras.h"
#include "llvm/IR/Function.h"
#include "IRGenFunction.h"
#include "IRGenModule.h"
#include "swift/Basic/Assertions.h"
using namespace swift;
using namespace irgen;
/// Insert the given basic block after the IP block and move the
/// insertion point to it. Only valid if the IP is valid.
void IRBuilder::emitBlock(llvm::BasicBlock *BB) {
assert(ClearedIP == nullptr);
llvm::BasicBlock *CurBB = GetInsertBlock();
assert(CurBB && "current insertion point is invalid");
CurBB->getParent()->insert(std::next(CurBB->getIterator()), BB);
IRBuilderBase::SetInsertPoint(BB);
}
/// Create a new basic block with the given name. The block is not
/// automatically inserted into the function.
llvm::BasicBlock *
IRGenFunction::createBasicBlock(const llvm::Twine &Name) {
return llvm::BasicBlock::Create(IGM.getLLVMContext(), Name);
}
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