[lld] [llvm] [LLVM][LTO] Factor out RTLib calls and allow them to be dropped (PR #98512)

[Matt Arsenault via llvm-commits]

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@@ -189,6 +189,436 @@ struct MemOp {
   }
 };
 
+struct LibcallsInfo {
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arsenm wrote:

Call RuntimeLibcallInfo? 

https://github.com/llvm/llvm-project/pull/98512