[llvm] [PAC][ELF] Place AUTH constants in .data.rel.ro for position dependent code (PR #150418)

[Daniil Kovalev via llvm-commits]

================
@@ -333,9 +348,10 @@ SectionKind TargetLoweringObjectFile::getKindForGlobal(const GlobalObject *GO,
       // mergable section, because the linker doesn't take relocations into
       // consideration when it tries to merge entries in the section.
       Reloc::Model ReloModel = TM.getRelocationModel();
-      if (ReloModel == Reloc::Static || ReloModel == Reloc::ROPI ||
-          ReloModel == Reloc::RWPI || ReloModel == Reloc::ROPI_RWPI ||
-          !C->needsDynamicRelocation())
+      if ((ReloModel == Reloc::Static || ReloModel == Reloc::ROPI ||
+           ReloModel == Reloc::RWPI || ReloModel == Reloc::ROPI_RWPI ||
+           !C->needsDynamicRelocation()) &&
+          !containsConstantPtrAuth(C))
         return SectionKind::getReadOnly();
----------------
kovdan01 wrote:

> [nit] Maybe it would be more readable to organize the checks along the lines

@atrosinenko Applied your suggestion in cafc9df143ea6d302994111a7e1882f346540d80, thanks!


https://github.com/llvm/llvm-project/pull/150418