diff --git a/src/amd/compiler/aco_optimizer.cpp b/src/amd/compiler/aco_optimizer.cpp index 3e295561d4c..a75ca2a1b4f 100644 --- a/src/amd/compiler/aco_optimizer.cpp +++ b/src/amd/compiler/aco_optimizer.cpp @@ -1512,6 +1512,22 @@ label_instruction(opt_ctx& ctx, aco_ptr& 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();