+## GCN / GFX6 hazards
+
+### VINTRP followed by a read with v_readfirstlane or v_readlane
+
+It's required to insert 1 wait state if the dst VGPR of any v_interp_* is
+followed by a read with v_readfirstlane or v_readlane to fix GPU hangs on GFX6.
+Note that v_writelane_* is apparently not affected. This hazard isn't
+documented anywhere but AMD confirmed it.
+