================
@@ -1297,5 +1297,10 @@ _HLSL_AVAILABILITY(shadermodel, 6.0)
 _HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_active_count_bits)
 uint WaveActiveCountBits(bool Val);
 
+/// \brief Returns the index of the current lane within the current wave.
+_HLSL_AVAILABILITY(shadermodel, 6.0)
+_HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_get_lane_index)
+uint WaveGetLaneIndex();
----------------
Keenuts wrote:

Yes, good catch, done

https://github.com/llvm/llvm-project/pull/80680
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