[llvm] [AMDGPU] Ignore inactive VGPRs in .vgpr_count (PR #149052)

[Diana Picus via llvm-commits]

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@@ -1367,6 +1367,28 @@ constexpr bool isEntryFunctionCC(CallingConv::ID CC) {
   }
 }
 
+// Shaders that are entry functions need to count input arguments even if
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rovka wrote:

That's really weird though, because I had configured a branch prefix in `gt config`... I guess it doesn't (always?) work. Anyway, I did a force push in the end. Sorry about the barbarism v0v

https://github.com/llvm/llvm-project/pull/149052