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An optimized division corner case

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caheckman 2020-08-04 15:25:21 -04:00
parent 90f6b5c7e5
commit 77b1a6bf4b
3 changed files with 89 additions and 15 deletions
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Ghidra/Features/Decompiler/src/decompile/cpp/ruleaction.hh
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@ -1194,6 +1194,7 @@ public:
class RuleDivOpt : public Rule {
static uintb calcDivisor(uintb n,uint8 y,int4 xsize); ///< Calculate the divisor
static void moveSignBitExtraction(Varnode *firstVn,Varnode *replaceVn,Funcdata &data);
static bool checkFormOverlap(PcodeOp *op); ///< If form rooted at given PcodeOp is superseded by an overlapping form
public:
RuleDivOpt(const string &g) : Rule( g, 0, "divopt") {} ///< Constructor
virtual Rule *clone(const ActionGroupList &grouplist) const {