Fix Cycles hang in classroom scene with upcomping AMD driver version 22.10

This is a workaround until there is a fix in the HIP compiler or driver.

Differential Revision: https://developer.blender.org/D14232

intern/cycles/kernel/light/light.h

@@ -394,11 +394,19 @@ ccl_device bool light_sample_from_distant_ray(KernelGlobals kg,
   float costheta = dot(-lightD, ray_D);
   float cosangle = klight->distant.cosangle;
 
+  /* Workaround to prevent a hang in the classroom scene with AMD HIP drivers 22.10,
+   * Remove when a compiler fix is available. */
+#ifdef __HIP__
+  ls->shader = klight->shader_id;
+#endif
+
   if (costheta < cosangle)
     return false;
 
   ls->type = type;
+#ifndef __HIP__
   ls->shader = klight->shader_id;
+#endif
   ls->object = PRIM_NONE;
   ls->prim = PRIM_NONE;
   ls->lamp = lamp;
@@ -947,4 +955,4 @@ ccl_device_inline bool light_distribution_sample_new_position(KernelGlobals kg,
   }
 }
 
-CCL_NAMESPACE_END
+CCL_NAMESPACE_END