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FuseMOEExperts. Check if all inputs of postponed_constant are constants #32670

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FuseMOEExperts. Check if all inputs of postponed_constant are constants #32670

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FuseMOEExperts. Check if all inputs of postponed_constant are constants
olpipi Nov 4, 2025
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olpipi Nov 5, 2025
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11 changes: 10 additions & 1 deletion src/common/transformations/src/transformations/common_optimizations/fuse_moe_experts.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@
#include "openvino/op/topk.hpp"
#include "openvino/op/transpose.hpp"
#include "openvino/op/unsqueeze.hpp"
#include "openvino/op/util/op_types.hpp"
#include "openvino/op/util/shape_of_base.hpp"
#include "openvino/pass/manager.hpp"
#include "openvino/pass/pattern/matcher.hpp"
Expand All @@ -47,6 +48,7 @@
#include "openvino/pass/pattern/op/wrap_type.hpp"
#include "transformations/rt_info/decompression.hpp"
#include "transformations/utils/utils.hpp"

namespace ov {
namespace pass {

Expand Down Expand Up @@ -396,7 +398,14 @@ ov::pass::FuseMOEExperts::FuseMOEExperts() : MultiMatcher("FuseMOEExperts") {
}

auto fused = std::make_shared<ov::op::v0::Concat>(inputs, 0);
fused->get_rt_info()["postponed_constant"] = true;
if (std::all_of(inputs.begin(), inputs.end(), [](const auto& input) {
return ov::op::util::is_constant(input.get_node());
})) {
// postponed_constant attribute is needed to perform constant folding on serialization step
fused->get_rt_info()["postponed_constant"] = true;
// disable constant folding here to postpone it to serialization step
ov::pass::disable_constant_folding(fused);
}
if (needs_decompress) {
auto convert = std::make_shared<ov::op::v0::Convert>(fused, target_type);
ov::mark_as_decompression(convert);
Expand Down
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