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cpValue2Value now needs a vector of MachineInstr to store return values. 

llvm-svn: 2644
This commit is contained in:
Vikram S. Adve 2002-05-19 15:31:08 +00:00
parent 1e45411a31
commit 069d51612f
1 changed files with 20 additions and 16 deletions
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36
llvm/lib/CodeGen/InstrSelection/InstrSelection.cpp
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@ -207,26 +207,30 @@ InsertCode4AllPhisInMeth(Function *F, TargetMachine &target)
// for each incoming value of the phi, insert phi elimination
//
for (unsigned i = 0; i < PN->getNumIncomingValues(); ++i) {
// insert the copy instruction to the predecessor BB
MachineInstr *CpMI =
target.getRegInfo().cpValue2Value(PN->getIncomingValue(i),
PhiCpRes);
vector<MachineInstr*> CpVec = FixConstantOperandsForInstr(PN, CpMI,
target);
CpVec.push_back(CpMI);
InsertPhiElimInstructions(PN->getIncomingBlock(i), CpVec);
}
for (unsigned i = 0; i < PN->getNumIncomingValues(); ++i)
{ // insert the copy instruction to the predecessor BB
vector<MachineInstr*> mvec, CpVec;
target.getRegInfo().cpValue2Value(PN->getIncomingValue(i), PhiCpRes,
mvec);
for (vector<MachineInstr*>::iterator MI=mvec.begin();
MI != mvec.end(); ++MI)
{
vector<MachineInstr*> CpVec2 =
FixConstantOperandsForInstr(PN, *MI, target);
CpVec2.push_back(*MI);
CpVec.insert(CpVec.end(), CpVec2.begin(), CpVec2.end());
}
InsertPhiElimInstructions(PN->getIncomingBlock(i), CpVec);
}
vector<MachineInstr*> mvec;
target.getRegInfo().cpValue2Value(PhiCpRes, PN, mvec);
MachineInstr *CpMI2 =
target.getRegInfo().cpValue2Value(PhiCpRes, PN);
// get an iterator to machine instructions in the BB
MachineCodeForBasicBlock& bbMvec = BB->getMachineInstrVec();
bbMvec.insert( bbMvec.begin(), CpMI2);
bbMvec.insert( bbMvec.begin(), mvec.begin(), mvec.end());
}
else break; // since PHI nodes can only be at the top