================
@@ -478,10 +605,31 @@ matchWeightsByHashes(BinaryContext &BC,
Blocks.push_back(&Func.Blocks[I + 1]);
BlendedBlockHash BlendedHash(BB->getHash());
BlendedHashes.push_back(BlendedHash);
+ // Collects pseudo probes attached to the BB for use in the StaleMatcher.
+ if (opts::ProfileUsePseudoProbes && PseudoProbeDecoder) {
+ const AddressProbesMap &ProbeMap =
+ PseudoProbeDecoder->getAddress2ProbesMap();
+ const uint64_t FuncAddr = BF.getAddress();
+ const std::pair<uint64_t, uint64_t> &BlockRange =
+ BB->getInputAddressRange();
+ const auto &BlockProbes =
+ llvm::make_range(ProbeMap.lower_bound(FuncAddr + BlockRange.first),
+ ProbeMap.lower_bound(FuncAddr + BlockRange.second));
+ for (const auto &[_, Probes] : BlockProbes) {
+ for (const MCDecodedPseudoProbe &Probe : Probes) {
+ if (Probe.getInlineTreeNode()->hasInlineSite())
----------------
WenleiHe wrote:
If we think probe is a reliable anchor for block level profile-binary matching,
we should find ways to leverage inlinee probes for matching inlinee blocks too.
Operating with only top level probes can be very limiting.
https://github.com/llvm/llvm-project/pull/99891
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