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The lastOp operand is never used

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9331 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-10-21 16:06:07 +00:00
parent 91480ffbe2
commit d48a1d797f
1 changed files with 11 additions and 20 deletions
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25
lib/Target/SparcV9/SparcV9PreSelection.cpp
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@ -81,7 +81,7 @@ namespace {
// //
// visitOneOperand() does all the work for one operand. // visitOneOperand() does all the work for one operand.
// //
void visitOperands(Instruction &I, int firstOp=0, int lastOp=0); void visitOperands(Instruction &I, int firstOp=0);
void visitOneOperand(Instruction &I, Value* Op, unsigned opNum, void visitOneOperand(Instruction &I, Value* Op, unsigned opNum,
Instruction& insertBefore); Instruction& insertBefore);
}; };
@ -208,29 +208,20 @@ PreSelection::visitOneOperand(Instruction &I, Value* Op, unsigned opNum,
// firstOp and lastOp can be used to skip leading and trailing operands. // firstOp and lastOp can be used to skip leading and trailing operands.
// If lastOp is 0, it defaults to #operands or #incoming Phi values. // If lastOp is 0, it defaults to #operands or #incoming Phi values.
// //
inline void inline void PreSelection::visitOperands(Instruction &I, int firstOp) {
PreSelection::visitOperands(Instruction &I, int firstOp, int lastOp)
{
// For any instruction other than PHI, copies go just before the instr. // For any instruction other than PHI, copies go just before the instr.
// For a PHI, operand copies must be before the terminator of the // For a PHI, operand copies must be before the terminator of the
// appropriate predecessor basic block. Remaining logic is simple // appropriate predecessor basic block. Remaining logic is simple
// so just handle PHIs and other instructions separately. // so just handle PHIs and other instructions separately.
// //
if (PHINode* phi = dyn_cast<PHINode>(&I)) if (PHINode* phi = dyn_cast<PHINode>(&I)) {
{ for (unsigned i=firstOp, N=phi->getNumIncomingValues(); i != N; ++i)
if (lastOp == 0) visitOneOperand(I, phi->getIncomingValue(i),
lastOp = phi->getNumIncomingValues();
for (unsigned i=firstOp, N=lastOp; i < N; ++i)
this->visitOneOperand(I, phi->getIncomingValue(i),
phi->getOperandNumForIncomingValue(i), phi->getOperandNumForIncomingValue(i),
* phi->getIncomingBlock(i)->getTerminator()); * phi->getIncomingBlock(i)->getTerminator());
} } else {
else for (unsigned i=firstOp, N=lastOp; i != I.getNumOperands(); ++i)
{ visitOneOperand(I, I.getOperand(i), i, I);
if (lastOp == 0)
lastOp = I.getNumOperands();
for (unsigned i=firstOp, N=lastOp; i < N; ++i)
this->visitOneOperand(I, I.getOperand(i), i, I);
} }
} }