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Code Issues Releases Wiki Activity

some crucial fixes for dominant COPY model

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This commit is contained in:
caheckman 2019-04-30 18:31:12 -04:00
parent 00bbc8516b
commit 908632eac0
5 changed files with 77 additions and 58 deletions
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5
Ghidra/Features/Decompiler/src/decompile/cpp/merge.hh
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@ -80,6 +80,7 @@ class Funcdata;
class Merge {
Funcdata &data; ///< The function containing the Varnodes to be merged
map<HighEdge,bool> highedgemap; ///< A cache of intersection tests, sorted by HighVariable pair
vector<PcodeOp *> copyTrims; ///< COPY ops inserted to facilitate merges
bool updateHigh(HighVariable *a); ///< Make sure given HighVariable's Cover is up-to-date
void purgeHigh(HighVariable *high); ///< Remove cached intersection tests for a given HighVariable
bool blockIntersection(HighVariable *a,HighVariable *b,int4 blk);
@ -93,6 +94,7 @@ class Merge {
void collectCovering(vector<Varnode *> &vlist,HighVariable *high,PcodeOp *op);
bool collectCorrectable(const vector<Varnode *> &vlist,list<PcodeOp *> &oplist,vector<int4> &slotlist,
PcodeOp *op);
PcodeOp *allocateCopyTrim(Varnode *inVn,Datatype *ct,const Address &addr);
void snipReads(Varnode *vn,list<PcodeOp *> &markedop);
void snipIndirect(PcodeOp *indop);
void eliminateIntersect(Varnode *vn,const vector<BlockVarnode> &blocksort);
@ -107,6 +109,7 @@ class Merge {
bool checkCopyPair(HighVariable *high,PcodeOp *domOp,PcodeOp *subOp);
void buildDominantCopy(HighVariable *high,vector<PcodeOp *> &copy,int4 pos,int4 size);
void markRedundantCopies(HighVariable *high,vector<PcodeOp *> &copy,int4 pos,int4 size);
void processCopyTrimsForHigh(HighVariable *high);
public:
Merge(Funcdata &fd) : data(fd) {} ///< Construct given a specific function
bool intersection(HighVariable *a,HighVariable *b);
@ -120,7 +123,7 @@ public:
void mergeMarker(void);
void mergeAdjacent(void);
bool hideShadows(HighVariable *high);
void processCopyTrims(HighVariable *high);
void processCopyTrims(void);
};
/// \brief Compare HighVariables by the blocks they cover