[llvm-dev] Support for older format versions in RawInstrProfReader (original) (raw)
Petr Hosek via llvm-dev llvm-dev at lists.llvm.org
Mon Aug 23 22:52:22 PDT 2021
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Currently, while IndexedInstrProfReader provides backwards compatibility for indexed profile format, RawInstrProfReader only supports the current version of raw profile format. Has support for older raw profile format versions in RawInstrProfReader ever been considered?
The reason why I'm asking is that we collect code coverage from both C++ and Rust, but since Clang and Rust toolchains use different version on LLVM, we need to match each profile with a corresponding llvm-profdata binary which has been increasing the complexity of our infrastructure quite a bit.
Using the same llvm-profdata tool would simplify things a lot but would require backwards compatibility support in RawInstrProfReader. Would that be desirable? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20210823/48628625/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 3996 bytes Desc: S/MIME Cryptographic Signature URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20210823/48628625/attachment.bin>
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