MInstructionIterator
MBasicBlock::discardAt(MInstructionIterator &iter)
{
AssertSafelyDiscardable(*iter);
for (size_t i = 0; i < iter->numOperands(); i++)
iter->discardOperand(i);
return instructions_.removeAt(iter);
}
void
MBasicBlock::discardAllInstructionsStartingAt(MInstructionIterator &iter)
{
while (iter != end()) {
for (size_t i = 0, e = iter->numOperands(); i < e; i++)
iter->discardOperand(i);
iter = instructions_.removeAt(iter);
}
}
void
MBasicBlock::discardAllInstructions()
{
for (MInstructionIterator iter = begin(); iter != end(); ) {
for (size_t i = 0, e = iter->numOperands(); i < e; i++)
iter->discardOperand(i);
iter = instructions_.removeAt(iter);
}
lastIns_ = NULL;
}