[llvm] [SFrames] Emit and relax FREs (PR #158154)

[Fangrui Song via llvm-commits]

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@@ -583,6 +583,19 @@ void MCObjectStreamer::emitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
   newFragment();
 }
 
+void MCObjectStreamer::emitSFrameCalculateFuncOffset(const MCSymbol *FuncBase,
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MaskRay wrote:

Prefer const reference to non-nullable pointer

https://github.com/llvm/llvm-project/pull/158154