79 lines
2.5 KiB
C++
79 lines
2.5 KiB
C++
//===- SSAContext.h ---------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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/// \file
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///
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/// This file declares a specialization of the GenericSSAContext<X>
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/// class template for LLVM IR.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_IR_SSACONTEXT_H
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#define LLVM_IR_SSACONTEXT_H
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#include "llvm/ADT/GenericSSAContext.h"
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#include "llvm/IR/BasicBlock.h"
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#include "llvm/IR/ModuleSlotTracker.h"
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#include "llvm/Support/Printable.h"
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#include <memory>
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namespace llvm {
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class BasicBlock;
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class Function;
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class Instruction;
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class Value;
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template <typename> class SmallVectorImpl;
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template <typename, bool> class DominatorTreeBase;
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inline auto instrs(const BasicBlock &BB) {
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return llvm::make_range(BB.begin(), BB.end());
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}
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template <> class GenericSSAContext<Function> {
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Function *F;
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public:
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using BlockT = BasicBlock;
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using FunctionT = Function;
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using InstructionT = Instruction;
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using ValueRefT = Value *;
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using ConstValueRefT = const Value *;
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static Value *ValueRefNull;
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using DominatorTreeT = DominatorTreeBase<BlockT, false>;
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void setFunction(Function &Fn);
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Function *getFunction() const { return F; }
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static BasicBlock *getEntryBlock(Function &F);
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static const BasicBlock *getEntryBlock(const Function &F);
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static void appendBlockDefs(SmallVectorImpl<Value *> &defs,
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BasicBlock &block);
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static void appendBlockDefs(SmallVectorImpl<const Value *> &defs,
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const BasicBlock &block);
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static void appendBlockTerms(SmallVectorImpl<Instruction *> &terms,
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BasicBlock &block);
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static void appendBlockTerms(SmallVectorImpl<const Instruction *> &terms,
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const BasicBlock &block);
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static bool comesBefore(const Instruction *lhs, const Instruction *rhs);
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static bool isConstantValuePhi(const Instruction &Instr);
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const BasicBlock *getDefBlock(const Value *value) const;
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Printable print(const BasicBlock *Block) const;
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Printable print(const Instruction *Inst) const;
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Printable print(const Value *Value) const;
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};
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using SSAContext = GenericSSAContext<Function>;
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} // namespace llvm
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#endif // LLVM_IR_SSACONTEXT_H
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