MInstruction*
MBasicBlock::safeInsertTop(MDefinition* ins, IgnoreTop ignore)
{
// Beta nodes and interrupt checks are required to be located at the
// beginnings of basic blocks, so we must insert new instructions after any
// such instructions.
MInstructionIterator insertIter = !ins || ins->isPhi()
? begin()
: begin(ins->toInstruction());
while (insertIter->isBeta() ||
insertIter->isInterruptCheck() ||
insertIter->isConstant() ||
(!(ignore & IgnoreRecover) && insertIter->isRecoveredOnBailout()))
{
insertIter++;
}
return *insertIter;
}
MInstruction*
MBasicBlock::safeInsertTop(MDefinition* ins, IgnoreTop ignore)
{
MOZ_ASSERT(graph().osrBlock() != this,
"We are not supposed to add any instruction in OSR blocks.");
// Beta nodes and interrupt checks are required to be located at the
// beginnings of basic blocks, so we must insert new instructions after any
// such instructions.
MInstructionIterator insertIter = !ins || ins->isPhi()
? begin()
: begin(ins->toInstruction());
while (insertIter->isBeta() ||
insertIter->isInterruptCheck() ||
insertIter->isConstant() ||
insertIter->isParameter() ||
(!(ignore & IgnoreRecover) && insertIter->isRecoveredOnBailout()))
{
insertIter++;
}
return *insertIter;
}