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r600/sfn: Fix possible dest channels for variable size dot

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Fixes:  357e5fac99
    r600/sfn: Use variable length DOT on Evergreen and Cayman

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20398>
This commit is contained in:
Gert Wollny 2022-12-20 17:30:21 +01:00 • committed by Marge Bot
parent 281c07d89f
commit 55df7ad571
1 changed files with 7 additions and 1 deletions
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8
src/gallium/drivers/r600/sfn/sfn_instr_alu.cpp
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@ -26,6 +26,7 @@
#include "sfn_instr_alu.h"
#include "sfn_alu_defines.h"
#include "sfn_debug.h"
#include "sfn_instr_alugroup.h"
#include "sfn_instr_tex.h"
@ -495,8 +496,13 @@ uint8_t AluInstr::allowed_src_chan_mask() const
uint8_t
AluInstr::allowed_dest_chan_mask() const
{
if (alu_slots() != 1 && has_alu_flag(alu_is_cayman_trans)) {
if (alu_slots() != 1) {
if (has_alu_flag(alu_is_cayman_trans))
return (1 << alu_slots()) - 1;
if (m_opcode == op2_dot_ieee || m_opcode == op2_dot) {
return (1 << (4 - alu_slots())) - 1;
}
}
return 0xf;
}