================
@@ -3362,6 +3362,64 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue
Op,
return LowerGlobalTLSAddressLinux(Op, DAG);
}
+/// updateForAIXShLibTLSModelOpt - Helper to initialize TLS model opt settings,
+/// and then apply the update.
+static void updateForAIXShLibTLSModelOpt(TLSModel::Model &Model,
+ SelectionDAG &DAG,
+ const TargetMachine &TM) {
+ // Initialize TLS model opt setting lazily:
+ // (1) Use initial-exec for single TLS var references within current
function.
+ // (2) Use local-dynamic for multiple TLS var references within current
+ // function.
+ PPCFunctionInfo *FuncInfo =
+ DAG.getMachineFunction().getInfo<PPCFunctionInfo>();
+ if (!FuncInfo->isAIXFuncUseInitDone()) {
+ SmallPtrSet<const GlobalValue *, 8> TLSGV;
+ // Iterate over all instructions within current function, collect all TLS
+ // global variables (global variables taken as the first parameter to
+ // Intrinsic::threadlocal_address).
+ const Function &Func = DAG.getMachineFunction().getFunction();
+ for (Function::const_iterator BI = Func.begin(), BE = Func.end(); BI != BE;
+ ++BI)
+ for (BasicBlock::const_iterator II = BI->begin(), IE = BI->end();
+ II != IE; ++II)
+ if (II->getOpcode() == Instruction::Call)
+ if (const CallInst *CI = dyn_cast<const CallInst>(&*II))
+ if (Function *CF = CI->getCalledFunction())
+ if (CF->isDeclaration() &&
+ CF->getIntrinsicID() == Intrinsic::threadlocal_address)
+ if (const GlobalValue *GV =
+ dyn_cast<GlobalValue>(II->getOperand(0))) {
+ TLSModel::Model GVModel = TM.getTLSModel(GV);
+ if (GVModel == TLSModel::InitialExec ||
----------------
orcguru wrote:
Thank you for the guidance. I have limited the transformation.
https://github.com/llvm/llvm-project/pull/84132
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