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Code Issues Releases Wiki Activity

GP-4672 Set correct INDIRECT flags during SplitFlow

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This commit is contained in:
caheckman 2024-06-11 18:51:46 +00:00
parent e6112ce481
commit a67e80c286
3 changed files with 16 additions and 0 deletions
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2
Ghidra/Features/Decompiler/src/decompile/cpp/subflow.cc
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@ -1515,6 +1515,8 @@ bool SplitFlow::addOp(PcodeOp *op,TransformVar *rvn,int4 slot)
if (op->code() == CPUI_INDIRECT) { if (op->code() == CPUI_INDIRECT) {
opSetInput(loOp,newIop(op->getIn(1)),1); opSetInput(loOp,newIop(op->getIn(1)),1);
opSetInput(hiOp,newIop(op->getIn(1)),1); opSetInput(hiOp,newIop(op->getIn(1)),1);
loOp->inheritIndirect(op);
hiOp->inheritIndirect(op);
numParam = 1; numParam = 1;
} }
for(int4 i=0;i<numParam;++i) { for(int4 i=0;i<numParam;++i) {

13
Ghidra/Features/Decompiler/src/decompile/cpp/transform.cc
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@ -268,6 +268,19 @@ bool TransformOp::attemptInsertion(Funcdata *fd)
return true; // Already inserted return true; // Already inserted
} }
/// Prepare to build the transformed INDIRECT PcodeOp based on settings from the given INDIRECT.
/// \param indOp is the given INDIRECT
void TransformOp::inheritIndirect(PcodeOp *indOp)
{
if (indOp->isIndirectCreation()) {
if (indOp->getIn(0)->isIndirectZero())
special |= TransformOp::indirect_creation;
else
special |= TransformOp::indirect_creation_possible_out;
}
}
void LanedRegister::LanedIterator::normalize(void) void LanedRegister::LanedIterator::normalize(void)
{ {

1
Ghidra/Features/Decompiler/src/decompile/cpp/transform.hh
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@ -87,6 +87,7 @@ private:
public: public:
TransformVar *getOut(void) const { return output; } ///< Get the output placeholder variable for \b this operator TransformVar *getOut(void) const { return output; } ///< Get the output placeholder variable for \b this operator
TransformVar *getIn(int4 i) const { return input[i]; } ///< Get the i-th input placeholder variable for \b this TransformVar *getIn(int4 i) const { return input[i]; } ///< Get the i-th input placeholder variable for \b this
void inheritIndirect(PcodeOp *indOp); ///< Set \e indirect \e creation flags for \b this based on given INDIRECT
}; };
/// \brief Describes a (register) storage location and the ways it might be split into lanes /// \brief Describes a (register) storage location and the ways it might be split into lanes