
For GFX10+, currently null cannot be used as dst reg in instructions that expect the dst reg to be 128b or larger (e.g., s_load_dwordx4). This patch fixes this problem while ensuring null cannot be used as S#, T#, or V#.
For GFX10+, currently null cannot be used as dst reg in instructions that expect the dst reg to be 128b or larger (e.g., s_load_dwordx4). This patch fixes this problem while ensuring null cannot be used as S#, T#, or V#.