[llvm] improve performance of Module Analysis stage in the part of processing "other instructions" (PR #76047)

[Vyacheslav Levytskyy via llvm-commits]

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@@ -319,15 +291,43 @@ void SPIRVModuleAnalysis::collectFuncNames(MachineInstr &MI,
   }
 }
 
+using InstrSignature = SmallVector<size_t>;
+using InstrTraces = std::set<InstrSignature>;
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VyacheslavLevytskyy wrote:

It would be a problem to use with llvm, I see, for example: https://llvm.org/docs/ProgrammersManual.html#other-set-like-container-options

https://github.com/llvm/llvm-project/pull/76047