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aco/gfx9: all non legacy opsel instructions only write 16bits

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This affects 16bit VOP3 instructions that were new on gfx9, like max3.

No Foz-DB changes on vega10.

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28435>
This commit is contained in:
Georg Lehmann 2024-04-03 09:36:04 +02:00 • committed by Marge Bot
parent 18706947e8
commit d15ca421c4
1 changed files with 7 additions and 7 deletions
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14
src/amd/compiler/aco_ir.cpp
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@ -589,11 +589,11 @@ instr_is_16bit(amd_gfx_level gfx_level, aco_opcode op)
switch (op) {
/* VOP3 */
case aco_opcode::v_mad_f16:
case aco_opcode::v_mad_u16:
case aco_opcode::v_mad_i16:
case aco_opcode::v_fma_f16:
case aco_opcode::v_div_fixup_f16:
case aco_opcode::v_mad_legacy_f16:
case aco_opcode::v_mad_legacy_u16:
case aco_opcode::v_mad_legacy_i16:
case aco_opcode::v_fma_legacy_f16:
case aco_opcode::v_div_fixup_legacy_f16: return false;
case aco_opcode::v_interp_p2_f16:
case aco_opcode::v_fma_mixlo_f16:
case aco_opcode::v_fma_mixhi_f16:
@ -634,8 +634,8 @@ instr_is_16bit(amd_gfx_level gfx_level, aco_opcode op)
case aco_opcode::v_cvt_i16_f16:
case aco_opcode::v_cvt_norm_i16_f16:
case aco_opcode::v_cvt_norm_u16_f16: return gfx_level >= GFX10;
/* on GFX10, all opsel instructions preserve the high bits */
default: return gfx_level >= GFX10 && can_use_opsel(gfx_level, op, -1);
/* all non legacy opsel instructions preserve the high bits */
default: return can_use_opsel(gfx_level, op, -1);
}
}