[llvm] [BOLT] Fix NOP instruction emission on x86 (PR #72186)

[Maksim Panchenko via llvm-commits]

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@@ -4366,6 +4367,10 @@ MCInst *BinaryFunction::getInstructionAtOffset(uint64_t Offset) {
   }
 }
 
+bool BinaryFunction::shouldPreserveNops() const {
+  return PreserveNops || opts::KeepNops;
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maksfb wrote:

What's the rationale behind that extra check?

https://github.com/llvm/llvm-project/pull/72186