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Code Issues Releases Wiki Activity

First pass at removing redundant COPYs

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This commit is contained in:
caheckman 2019-04-25 15:05:03 -04:00
parent 5fa4e7a225
commit 9f6dd7edfe
6 changed files with 165 additions and 7 deletions
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8
Ghidra/Features/Decompiler/src/decompile/cpp/variable.hh
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@ -45,7 +45,9 @@ public:
enum {
flagsdirty = 1, ///< Boolean properties for the HighVariable are dirty
typedirty = 2, ///< The data-type for the HighVariable is dirty
coverdirty = 4 ///< The cover for the HighVariable is dirty
coverdirty = 4, ///< The cover for the HighVariable is dirty
copy_in = 8, ///< There exist COPY ops into \b this HighVariable from other HighVariables
copy_processed = 16 ///< COPY ops into \b this HighVariable have been analyzed
};
private:
friend class Merge;
@ -61,6 +63,7 @@ private:
void updateFlags(void) const; ///< (Re)derive boolean properties of \b this from the member Varnodes
void updateCover(void) const; ///< (Re)derive the cover of \b this from the member Varnodes
void updateType(void) const; ///< (Re)derive the data-type for \b this from the member Varnodes
void setCopyProcessed(void) const { highflags |= copy_processed; } ///< Mark that \b this has had its COPY ins processed
public:
HighVariable(Varnode *vn); ///< Construct a HighVariable with a single member Varnode
Datatype *getType(void) const { updateType(); return type; } ///< Get the data-type
@ -108,6 +111,9 @@ public:
void setMark(void) const { flags |= Varnode::mark; } ///< Set the mark on this variable
void clearMark(void) const { flags &= ~Varnode::mark; } ///< Clear the mark on this variable
bool isMark(void) const { return ((flags&Varnode::mark)!=0); } ///< Return \b true if \b this is marked
void setCopyIn(void) const { highflags |= copy_in; } ///< Mark the existence of COPY ops into \b this
bool hasCopyIn(void) const { return ((highflags&copy_in)!=0); } ///< Are there COPY ops into \b this
bool isCopyProcessed(void) const { return ((highflags&copy_processed)!=0); } ///< Have COPY ops into \b this been processed
/// \brief Determine if \b this HighVariable has an associated cover.
///