[clang] [lld] [llvm] [LTO][LLD] Prevent invalid LTO libfunc transforms (PR #164916)

[Daniel Thornburgh via cfe-commits]

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@@ -75,12 +76,14 @@ struct Builder {
   Builder(SmallVector<char, 0> &Symtab, StringTableBuilder &StrtabBuilder,
           BumpPtrAllocator &Alloc, const Triple &TT)
       : Symtab(Symtab), StrtabBuilder(StrtabBuilder), Saver(Alloc), TT(TT),
-        Libcalls(TT) {}
+        TLII(TT), TLI(TLII), Libcalls(TT) {}
 
   DenseMap<const Comdat *, int> ComdatMap;
   Mangler Mang;
   const Triple &TT;
 
+  TargetLibraryInfoImpl TLII;
+  TargetLibraryInfo TLI;
   // FIXME: This shouldn't be here.
   RTLIB::RuntimeLibcallsInfo Libcalls;
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mysterymath wrote:

Generally agree. Moved the two down below the fixme to indicate.

https://github.com/llvm/llvm-project/pull/164916