forked from OSchip/llvm-project
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
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//===-- PIC16Cloner.h - PIC16 LLVM Cloner for shared functions --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file contains declaration of a cloner class clone all functions that
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// are shared between the main line code (ML) and interrupt line code (IL).
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//
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//===----------------------------------------------------------------------===//
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#ifndef PIC16CLONER_H
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#define PIC16CLONER_H
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#include "llvm/ADT/DenseMap.h"
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using namespace llvm;
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using std::vector;
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using std::string;
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using std::map;
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namespace llvm {
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// forward classes.
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class Value;
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class Function;
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class Module;
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class ModulePass;
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class CallGraph;
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class CallGraphNode;
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class AnalysisUsage;
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class PIC16Cloner : public ModulePass {
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public:
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static char ID; // Class identification
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PIC16Cloner() : ModulePass(&ID) {}
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virtual void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequired<CallGraph>();
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}
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virtual bool runOnModule(Module &M);
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private: // Functions
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// Mark reachable functions for the MainLine or InterruptLine.
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void markCallGraph(CallGraphNode *CGN, string StringMark);
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// Clone auto variables of function specified.
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void CloneAutos(Function *F);
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// Error reporting for PIC16Pass
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void reportError(string ErrorString, vector<string> &Values);
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void reportError(string ErrorString);
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private: //data
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// Records if the interrupt function has already been found.
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// If more than one interrupt function is found then an error
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// should be thrown.
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bool foundISR;
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// This ValueMap maps the auto variables of the original functions with
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// the corresponding cloned auto variable of the cloned function.
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// This value map is passed during the function cloning so that all the
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// uses of auto variables be updated properly.
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DenseMap<const Value*, Value*> ValueMap;
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};
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} // End of anonymous namespace
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#endif
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