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[Ascend][PTO] Vectorize T.Parallel to PTO VMI: pipeline framework and element-wise support #4

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[Ascend][PTO] Vectorize T.Parallel to PTO VMI: pipeline framework and element-wise support #4

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dbf29d5
feat(pto): add T.vmi intrinsics and PTO VMI codegen
jimmychou0 Oct 13, 2026
ed16646
feat(pto-parallel): vectorize T.Parallel inside SimdVF to PTO VMI
jimmychou0 Oct 14, 2026
8d9d2ec
fix(pto): type allreduce initial-value constants by carrier signedness
KurrinQu Oct 15, 2026
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20 changes: 20 additions & 0 deletions src/ascend/codegen/codegen_ascend.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,19 @@ bool IsSimdOp(const CallNode *op, std::string *op_name = nullptr) {
return false;
}

bool IsVmiOp(const CallNode *op, std::string *op_name = nullptr) {
if (auto opt_call_op = op->op.as<Op>()) {
const std::string &name = opt_call_op.value()->name;
if (name.rfind("tl.vmi.", 0) == 0) {
if (op_name != nullptr) {
*op_name = name;
}
return true;
}
}
return false;
}

bool IsSimdMergingCall(const CallNode *op,
std::string *intrinsic_name = nullptr) {
if (!op->dtype.is_void() || op->args.empty()) {
Expand Down Expand Up @@ -2569,6 +2582,13 @@ void CodeGenTileLangAscend::VisitExpr_(const CallNode *op, std::ostream &os) {
<< "Unsupported RNG distribution on Ascend: " << dist;
os << "tl::philox_rand_" << dist << "(&" << ascend_rng_state_var_ << ")";
} else {
std::string op_name;
// Evaluate statements print their value through this CallNode visitor, so
// statement-form VMI calls such as vstore are rejected here as well.
if (IsVmiOp(op, &op_name)) {
LOG(FATAL) << "Ascend CCE codegen does not support " << op_name
<< "; use target='pto' for T.vmi.*";
}
CodeGenC::VisitExpr_(op, os);
}
}
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