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aco: Remove MTBUF zero operand.

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Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21363>
This commit is contained in:
Timur Kristóf
2023-02-03 00:32:06 +01:00
committed by Marge Bot
parent afdacf4dcc
commit 084d10a702
1 changed files with 16 additions and 0 deletions
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src/amd/compiler/aco_optimizer.cpp
+16
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@@ -1512,6 +1512,22 @@ label_instruction(opt_ctx& ctx, aco_ptr<Instruction>& instr)
}
}
else if (instr->isMTBUF()) {
MTBUF_instruction& mtbuf = instr->mtbuf();
while (info.is_temp())
info = ctx.info[info.temp.id()];
if (mtbuf.offen && mtbuf.idxen && i == 1 && info.is_vec() &&
info.instr->operands.size() == 2 && info.instr->operands[0].isTemp() &&
info.instr->operands[0].regClass() == v1 && info.instr->operands[1].isConstant() &&
mtbuf.offset + info.instr->operands[1].constantValue() < 4096) {
instr->operands[1] = info.instr->operands[0];
mtbuf.offset += info.instr->operands[1].constantValue();
mtbuf.offen = false;
continue;
}
}
/* SCRATCH: propagate constants and combine additions */
else if (instr->isScratch()) {
FLAT_instruction& scratch = instr->scratch();