================
@@ -265,6 +269,63 @@ bool AIXTargetCodeGenInfo::initDwarfEHRegSizeTable(
return PPC_initDwarfEHRegSizeTable(CGF, Address, Is64Bit, /*IsAIX*/ true);
}
+void AIXTargetCodeGenInfo::setTargetAttributes(
+ const Decl *D, llvm::GlobalValue *GV, CodeGen::CodeGenModule &M) const {
+ if (auto *GVar = dyn_cast<llvm::GlobalVariable>(GV)) {
+ auto GVId = M.getMangledName(dyn_cast<NamedDecl>(D));
+
+ // Is this a global variable specified by the user as toc-data?
+ bool UserSpecifiedTOC =
+ llvm::binary_search(M.getCodeGenOpts().TocDataVarsUserSpecified, GVId);
+ // Assumes the same variable cannot be in both TocVarsUserSpecified and
+ // NoTocVars.
+ if (UserSpecifiedTOC ||
+ ((M.getCodeGenOpts().AllTocData) &&
+ !llvm::binary_search(M.getCodeGenOpts().NoTocDataVars, GVId))) {
+ const unsigned long PointerSize =
+ GV->getParent()->getDataLayout().getPointerSizeInBits() / 8;
+ ASTContext &Context = D->getASTContext();
+ auto *VarD = dyn_cast<VarDecl>(D);
+ assert(VarD && "Invalid declaration of global variable.");
+
+ unsigned Alignment = Context.toBits(Context.getDeclAlign(D)) / 8;
+ const auto *Ty = VarD->getType().getTypePtr();
+ const RecordDecl *RDecl =
+ Ty->isRecordType() ? Ty->getAs<RecordType>()->getDecl() : nullptr;
+
+ bool EmitDiagnostic = UserSpecifiedTOC && GV->hasExternalLinkage();
+ if (!Ty || Ty->isIncompleteType()) {
+ if (EmitDiagnostic)
+ M.getDiags().Report(D->getLocation(),
diag::warn_toc_unsupported_type)
+ << GVId << "of incomplete type";
+ } else if (RDecl && RDecl->hasFlexibleArrayMember()) {
+ if (UserSpecifiedTOC)
+ M.getDiags().Report(D->getLocation(),
diag::warn_toc_unsupported_type)
+ << GVId << "it contains a flexible array member";
+ } else if (VarD->getTLSKind() != VarDecl::TLS_None) {
+ if (EmitDiagnostic)
+ M.getDiags().Report(D->getLocation(),
diag::warn_toc_unsupported_type)
+ << GVId << "of thread local storage model";
+ } else if (PointerSize < Context.getTypeInfo(VarD->getType()).Width / 8)
{
+ if (EmitDiagnostic)
+ M.getDiags().Report(D->getLocation(),
diag::warn_toc_unsupported_type)
+ << GVId << "variable is larger than a pointer";
+ } else if (PointerSize < Alignment) {
+ if (EmitDiagnostic)
+ M.getDiags().Report(D->getLocation(),
diag::warn_toc_unsupported_type)
+ << GVId << "variable is aligned wider than a pointer";
+ } else if (D->hasAttr<SectionAttr>()) {
+ if (EmitDiagnostic)
+ M.getDiags().Report(D->getLocation(),
diag::warn_toc_unsupported_type)
+ << GVId << "of a section attribute";
+ } else if ((GV->hasExternalLinkage() || M.getCodeGenOpts().AllTocData) &&
+ !GV->hasInternalLinkage()) {
----------------
efriedma-quic wrote:
Maybe should be `hasLocalLinkage()`?
https://github.com/llvm/llvm-project/pull/67999
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