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use simplified operand addition methods.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45436 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-12-30 00:57:42 +00:00
parent fec65d5562
commit 9ce2e9d5a0
1 changed files with 25 additions and 17 deletions
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42
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@ -1164,7 +1164,6 @@ void SelectionDAGLowering::visitBr(BranchInst &I) {
// Update machine-CFG edges.
CurMBB->addSuccessor(Succ0MBB);
return;
}
@ -4763,8 +4762,9 @@ void SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB, MachineFunction &MF,
MachineInstr *PHI = PHINodesToUpdate[i].first;
assert(PHI->getOpcode() == TargetInstrInfo::PHI &&
"This is not a machine PHI node that we are updating!");
PHI->addRegOperand(PHINodesToUpdate[i].second, false);
PHI->addMachineBasicBlockOperand(BB);
PHI->addOperand(MachineOperand::CreateReg(PHINodesToUpdate[i].second,
false));
PHI->addOperand(MachineOperand::CreateMBB(BB));
}
return;
}
@ -4815,18 +4815,22 @@ void SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB, MachineFunction &MF,
// This is "default" BB. We have two jumps to it. From "header" BB and
// from last "case" BB.
if (PHIBB == BitTestCases[i].Default) {
PHI->addRegOperand(PHINodesToUpdate[pi].second, false);
PHI->addMachineBasicBlockOperand(BitTestCases[i].Parent);
PHI->addRegOperand(PHINodesToUpdate[pi].second, false);
PHI->addMachineBasicBlockOperand(BitTestCases[i].Cases.back().ThisBB);
PHI->addOperand(MachineOperand::CreateReg(PHINodesToUpdate[pi].second,
false));
PHI->addOperand(MachineOperand::CreateMBB(BitTestCases[i].Parent));
PHI->addOperand(MachineOperand::CreateReg(PHINodesToUpdate[pi].second,
false));
PHI->addOperand(MachineOperand::CreateMBB(BitTestCases[i].Cases.
back().ThisBB));
}
// One of "cases" BB.
for (unsigned j = 0, ej = BitTestCases[i].Cases.size(); j != ej; ++j) {
MachineBasicBlock* cBB = BitTestCases[i].Cases[j].ThisBB;
if (cBB->succ_end() !=
std::find(cBB->succ_begin(),cBB->succ_end(), PHIBB)) {
PHI->addRegOperand(PHINodesToUpdate[pi].second, false);
PHI->addMachineBasicBlockOperand(cBB);
PHI->addOperand(MachineOperand::CreateReg(PHINodesToUpdate[pi].second,
false));
PHI->addOperand(MachineOperand::CreateMBB(cBB));
}
}
}
@ -4869,13 +4873,15 @@ void SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB, MachineFunction &MF,
"This is not a machine PHI node that we are updating!");
// "default" BB. We can go there only from header BB.
if (PHIBB == JTCases[i].second.Default) {
PHI->addRegOperand(PHINodesToUpdate[pi].second, false);
PHI->addMachineBasicBlockOperand(JTCases[i].first.HeaderBB);
PHI->addOperand(MachineOperand::CreateReg(PHINodesToUpdate[pi].second,
false));
PHI->addOperand(MachineOperand::CreateMBB(JTCases[i].first.HeaderBB));
}
// JT BB. Just iterate over successors here
if (BB->succ_end() != std::find(BB->succ_begin(),BB->succ_end(), PHIBB)) {
PHI->addRegOperand(PHINodesToUpdate[pi].second, false);
PHI->addMachineBasicBlockOperand(BB);
PHI->addOperand(MachineOperand::CreateReg(PHINodesToUpdate[pi].second,
false));
PHI->addOperand(MachineOperand::CreateMBB(BB));
}
}
}
@ -4887,8 +4893,9 @@ void SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB, MachineFunction &MF,
assert(PHI->getOpcode() == TargetInstrInfo::PHI &&
"This is not a machine PHI node that we are updating!");
if (BB->isSuccessor(PHI->getParent())) {
PHI->addRegOperand(PHINodesToUpdate[i].second, false);
PHI->addMachineBasicBlockOperand(BB);
PHI->addOperand(MachineOperand::CreateReg(PHINodesToUpdate[i].second,
false));
PHI->addOperand(MachineOperand::CreateMBB(BB));
}
}
@ -4919,8 +4926,9 @@ void SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB, MachineFunction &MF,
for (unsigned pn = 0; ; ++pn) {
assert(pn != PHINodesToUpdate.size() && "Didn't find PHI entry!");
if (PHINodesToUpdate[pn].first == Phi) {
Phi->addRegOperand(PHINodesToUpdate[pn].second, false);
Phi->addMachineBasicBlockOperand(SwitchCases[i].ThisBB);
Phi->addOperand(MachineOperand::CreateReg(PHINodesToUpdate[pn].
second, false));
Phi->addOperand(MachineOperand::CreateMBB(SwitchCases[i].ThisBB));
break;
}
}