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[mlir-tensorrt] fix the way that layer names are set for TensorRT #702

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Merged
merged 1 commit into from
Oct 27, 2025
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[mlir-tensorrt] fix the way that layer names are set for TensorRT #702

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24 changes: 22 additions & 2 deletions mlir-tensorrt/tensorrt/lib/Target/TensorRTEncodingOpInterface/NetworkEncoder.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -233,9 +233,28 @@ static std::string getUniqueName(NvInferNetworkEncoder::NamesSet &names,
/// an open system of location attributes, there may be some location types that
/// we cannot handle. We do not use the location's builtin printer because it
/// could be extremely verbose.
static void getCallSiteLocs(Location loc, SmallVector<Location> &locs) {
if (auto callLoc = dyn_cast<CallSiteLoc>(loc)) {
getCallSiteLocs(callLoc.getCaller(), locs);
getCallSiteLocs(callLoc.getCallee(), locs);
} else {
locs.push_back(loc);
}
}

static void translateLocation(Location loc, llvm::raw_ostream &os) {
if (auto callLoc = dyn_cast<CallSiteLoc>(loc)) {
translateLocation(callLoc.getCaller(), os);
SmallVector<Location> locs;
getCallSiteLocs(callLoc, locs);
// only include the last 3 locations in the names as this should be
// sufficient to identify the call site for an op
for (size_t i = locs.size() > 3 ? locs.size() - 3 : 0; i < locs.size();
i++) {
translateLocation(locs[i], os);
if (i < locs.size() - 1) {
os << " -> ";
}
}
return;
}
if (auto fileLoc = dyn_cast<FileLineColLoc>(loc)) {
Expand Down Expand Up @@ -274,7 +293,8 @@ static std::string createName(NvInferNetworkEncoder::NamesSet &names,
ss.flush();
}
// Truncate to TRT limit.
static constexpr size_t kLayerNameSizeLimit = 2048;
static constexpr size_t kLayerNameSizeLimit =
2048 - 6; // -6 to give some space for UniqueName
if (name.size() > kLayerNameSizeLimit)
name = name.substr(0, kLayerNameSizeLimit);

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