[llvm] MC: Store fragment content and fixups out-of-line (PR #146307)

[Alexis Engelke via llvm-commits]

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@@ -125,6 +119,13 @@ class MCEncodedFragment : public MCFragment {
   /// It must be non-null for instructions.
   const MCSubtargetInfo *STI = nullptr;
 
+private:
+  uint32_t ContentStart = 0;
+  uint32_t ContentSize = 0;
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aengelke wrote:

One more comment: This limits the size of actual section contents to 2**32-1, I think we supported larger sections before? Maybe we should use size_t here. Depending on usage, we might also want to store start/end instead of start/size to simplify checks w.r.t. ContentStorage.size().

https://github.com/llvm/llvm-project/pull/146307