[llvm] [BOLT][DWARF][NFC] Split DIEBuilder::finish (PR #101244)

[Alexander Yermolovich via llvm-commits]

================
@@ -740,6 +739,7 @@ void DWARFRewriter::updateDebugInfo() {
       finalizeTypeSections(DIEBlder, *Streamer, GDBIndexSection);
 
   CUPartitionVector PartVec = partitionCUs(*BC.DwCtx);
+  llvm::DenseMap<uint64_t, std::unique_ptr<DIEBuilder>> DWODIEBuildersByCU;
----------------
ayermolo wrote:

This can just be a vector since we iterate in the same order.
Also let's move it to partition loop, so se don't keep around all the DWO Builders.
Either that or call clear on it to free up memory.

https://github.com/llvm/llvm-project/pull/101244