[llvm] [AMDGPU] MCExpr printing helper with KnownBits support (PR #95951)

[Janek van Oirschot via llvm-commits]

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@@ -314,3 +315,142 @@ AMDGPUVariadicMCExpr::createOccupancy(unsigned InitOcc, const MCExpr *NumSGPRs,
                  CreateExpr(InitOcc), NumSGPRs, NumVGPRs},
                 Ctx);
 }
+
+static KnownBits AMDGPUMCExprKnownBits(const MCExpr *Expr, raw_ostream &OS,
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JanekvO wrote:

The function arguments? Or just the need for trying to resolve some of these with KnownBits?

https://github.com/llvm/llvm-project/pull/95951