mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
c16fc54851
The patch is generated using clang-tidy misc-use-override check.
This command was used:
tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py \
-checks='-*,misc-use-override' -header-filter='llvm|clang' \
-j=32 -fix -format
http://reviews.llvm.org/D8925
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234679 91177308-0d34-0410-b5e6-96231b3b80d8
92 lines
3.1 KiB
C++
92 lines
3.1 KiB
C++
//===- LazyValueInfo.h - Value constraint analysis --------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the interface for lazy computation of value constraint
|
|
// information.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_ANALYSIS_LAZYVALUEINFO_H
|
|
#define LLVM_ANALYSIS_LAZYVALUEINFO_H
|
|
|
|
#include "llvm/Pass.h"
|
|
|
|
namespace llvm {
|
|
class AssumptionCache;
|
|
class Constant;
|
|
class DataLayout;
|
|
class DominatorTree;
|
|
class Instruction;
|
|
class TargetLibraryInfo;
|
|
class Value;
|
|
|
|
/// This pass computes, caches, and vends lazy value constraint information.
|
|
class LazyValueInfo : public FunctionPass {
|
|
AssumptionCache *AC;
|
|
class TargetLibraryInfo *TLI;
|
|
DominatorTree *DT;
|
|
void *PImpl;
|
|
LazyValueInfo(const LazyValueInfo&) = delete;
|
|
void operator=(const LazyValueInfo&) = delete;
|
|
public:
|
|
static char ID;
|
|
LazyValueInfo() : FunctionPass(ID), PImpl(nullptr) {
|
|
initializeLazyValueInfoPass(*PassRegistry::getPassRegistry());
|
|
}
|
|
~LazyValueInfo() override { assert(!PImpl && "releaseMemory not called"); }
|
|
|
|
/// This is used to return true/false/dunno results.
|
|
enum Tristate {
|
|
Unknown = -1, False = 0, True = 1
|
|
};
|
|
|
|
|
|
// Public query interface.
|
|
|
|
/// Determine whether the specified value comparison with a constant is known
|
|
/// to be true or false on the specified CFG edge.
|
|
/// Pred is a CmpInst predicate.
|
|
Tristate getPredicateOnEdge(unsigned Pred, Value *V, Constant *C,
|
|
BasicBlock *FromBB, BasicBlock *ToBB,
|
|
Instruction *CxtI = nullptr);
|
|
|
|
/// Determine whether the specified value comparison with a constant is known
|
|
/// to be true or false at the specified instruction
|
|
/// (from an assume intrinsic). Pred is a CmpInst predicate.
|
|
Tristate getPredicateAt(unsigned Pred, Value *V, Constant *C,
|
|
Instruction *CxtI);
|
|
|
|
/// Determine whether the specified value is known to be a
|
|
/// constant at the end of the specified block. Return null if not.
|
|
Constant *getConstant(Value *V, BasicBlock *BB, Instruction *CxtI = nullptr);
|
|
|
|
/// Determine whether the specified value is known to be a
|
|
/// constant on the specified edge. Return null if not.
|
|
Constant *getConstantOnEdge(Value *V, BasicBlock *FromBB, BasicBlock *ToBB,
|
|
Instruction *CxtI = nullptr);
|
|
|
|
/// Inform the analysis cache that we have threaded an edge from
|
|
/// PredBB to OldSucc to be from PredBB to NewSucc instead.
|
|
void threadEdge(BasicBlock *PredBB, BasicBlock *OldSucc, BasicBlock *NewSucc);
|
|
|
|
/// Inform the analysis cache that we have erased a block.
|
|
void eraseBlock(BasicBlock *BB);
|
|
|
|
// Implementation boilerplate.
|
|
|
|
void getAnalysisUsage(AnalysisUsage &AU) const override;
|
|
void releaseMemory() override;
|
|
bool runOnFunction(Function &F) override;
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|
|
|