[llvm] [JITLink] Add x86_64::Delta8 edge kind, ELF::R_X86_64_PC8 support (PR #95869)

[Maksim Panchenko via llvm-commits]

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@@ -95,6 +95,19 @@ enum EdgeKind_x86_64 : Edge::Kind {
   ///
   Delta32,
 
+  /// An 8-bit delta.
+  ///
+  /// Delta from the fixup to the target.
+  ///
+  /// Fixup expression:
+  ///   Fixup <- Target - Fixup + Addend : int64
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maksfb wrote:

Makes sense. Fixed the comment for `Delta32` above as well.

https://github.com/llvm/llvm-project/pull/95869