[llvm] [BOLT] Fix comparison function for Linux ORC entries (PR #79921)

[Amir Ayupov via llvm-commits]

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@@ -95,7 +95,7 @@ class LinuxKernelRewriter final : public MetadataRewriter {
         return 1;
       if (IP > Other.IP)
         return 0;
-      return ORC == NullORC;
+      return ORC == NullORC && Other.ORC != NullORC;
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aaupov wrote:

Is it important to have an ordering for NullORC entries? Should we order NullORC entries by some sequential id?

https://github.com/llvm/llvm-project/pull/79921