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aco: don't combine vgpr into writelane src0

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Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Acked-by: Daniel Schürmann <daniel@schuermann.dev>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29466>
(cherry picked from commit 0dee5fdd3c)
This commit is contained in:
Rhys Perry 2024-05-27 15:45:29 +01:00 • committed by Eric Engestrom
parent 23a197a534
commit 4a5f2a1c15
2 changed files with 6 additions and 6 deletions
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2
.pick_status.json
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@ -724,7 +724,7 @@
"description": "aco: don't combine vgpr into writelane src0",
"nominated": true,
"nomination_type": 0,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": null,
"notes": null

10
src/amd/compiler/aco_optimizer.cpp
View file

@ -703,13 +703,13 @@ alu_can_accept_constant(const aco_ptr<Instruction>& instr, unsigned operand)
bool
valu_can_accept_vgpr(aco_ptr<Instruction>& instr, unsigned operand)
{
if (instr->opcode == aco_opcode::v_readlane_b32 ||
instr->opcode == aco_opcode::v_readlane_b32_e64 ||
instr->opcode == aco_opcode::v_writelane_b32 ||
if (instr->opcode == aco_opcode::v_writelane_b32 ||
instr->opcode == aco_opcode::v_writelane_b32_e64)
return operand != 1;
return operand == 2;
if (instr->opcode == aco_opcode::v_permlane16_b32 ||
instr->opcode == aco_opcode::v_permlanex16_b32)
instr->opcode == aco_opcode::v_permlanex16_b32 ||
instr->opcode == aco_opcode::v_readlane_b32 ||
instr->opcode == aco_opcode::v_readlane_b32_e64)
return operand == 0;
return true;
}