[llvm] [DebugInfo][DWARF] Emit Per-Function Line Table Offsets and End Sequences (PR #110192)

[via llvm-commits]

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@@ -123,6 +123,9 @@ class MCDwarfLoc {
   friend class MCContext;
   friend class MCDwarfLineEntry;
 
+  // DwarfDebug::endFunctionImpl needs to construct MCDwarfLoc(IsEndOfFunction)
+  friend class DwarfDebug;
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alx32 wrote:

I tried to keep this implementation as close to Apple's very similar implementation of `-fcas-friendly-debug-info` in their fork of llvm-project - see [MCDwarf.h in Apple's llvm-project fork](https://github.com/swiftlang/llvm-project/blob/601abd74df1b6cad0690397898a2bd3a27a955e1/llvm/include/llvm/MC/MCDwarf.h#L125) . This to both to try to stick to their proposed pattern and to make it easier to merge the changes later on. 

https://github.com/llvm/llvm-project/pull/110192