// Determining the address of a TLS variable results in a function call in
// certain TLS models.
static bool memAddrUsesCTR(const PPCTargetMachine &TM, const Value *MemAddr) {
const auto *GV = dyn_cast<GlobalValue>(MemAddr);
if (!GV) {
// Recurse to check for constants that refer to TLS global variables.
if (const auto *CV = dyn_cast<Constant>(MemAddr))
for (const auto &CO : CV->operands())
if (memAddrUsesCTR(TM, CO))
return true;
return false;
}
if (!GV->isThreadLocal())
return false;
TLSModel::Model Model = TM.getTLSModel(GV);
return Model == TLSModel::GeneralDynamic || Model == TLSModel::LocalDynamic;
}
PPCSelectionDAGInfo::PPCSelectionDAGInfo(const PPCTargetMachine &TM)
: TargetSelectionDAGInfo(TM.getDataLayout()) {
}