Add hierarchical discriminator multiplicity support #257
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kugan-nv
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Nov 14, 2025
kugan-nv
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Added support for mutiplicity and copy_id for gcc gcov. This should matches the GCC implementation. I am posting patches to GCC to match this. * GetBaseDiscriminator() - Extract bits 0-7 * GetMultiplicity() - Extract bits 8-14 (duplication factor) * GetCopyID() - Extract bits 15-25 (unused but reserved) With the patch we now: 1. Extract multiplicity and copy_id from discriminator 2. Multiply sample count by multiplicity 4. Add samples using copy_id. This was already supported for LLVM.
erozenfeld
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Nov 25, 2025
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erozenfeld
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erozenfeld
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LGTM with one question
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| // Return the full 64-bit offset for 32-bit hierarchical discriminators. | ||
| static constexpr uint64_t GenerateFullOffset(uint64_t Offset) { |
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This is not called from anywhere , is it?
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