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THtml

THtml. THtml will generate >=1 doc.root file .html pages generated from doc.root files by April (Feb doesn't exist) Bertrand: extract doc for online help interface already discussed THtml will load doc on demand, return doc string works even for links. Non-LLVM.

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  1. THtml • THtml will generate >=1 doc.root file • .html pages generated from doc.root files by April (Feb doesn't exist) • Bertrand: extract doc for online help • interface already discussed • THtml will load doc on demand, return doc string • works even for links Axel Naumann • ROOT Team Meeting

  2. Non-LLVM Keep CINT, Reflex, Cintex as is Fix relevant bugs that can be fixed <1 week Fix Coverity reports Axel Naumann • ROOT Team Meeting

  3. LLVM: Words (Reminder) LLVM: the whole thing, compiler + optimizers + JIT + platform support etc clang: LLVM's C++ frontend with C++ interface, to be used by: cling: planned as clang-based C++ interpreter rootcling: ROOT module to interface cling (and thus clang) from ROOT Axel Naumann • ROOT Team Meeting

  4. LLVM + clang + cling General plans: • No announcements • Small LLVM-ROOT interface in $ROOTSYS/llvm, default: --disable-llvm • Goal: replaces • rootcint, genreflex / GCCXML • dictionaries (stubs, member info etc) • ACLiC • interpreter Axel Naumann • ROOT Team Meeting

  5. LLVM Priorities • Estimate libCling size, check platform independence (Windows) • Replacement for genreflex + dictionary • check feasibility • benchmark (build and run time, dict size) • exercise full path: header, dict, TClass • Replacement for rootcint • should be almost free (Linkdef) • Interpreter: later! ACLiC: later! Axel Naumann • ROOT Team Meeting

  6. Quick LLVM Dictionary "const char* wrap1234(vector<void*>p) {\n ((TObject*)p[0])->GetName();}" • parse headers using (modified) clang • put into PCH, register PCH in G__Foo.cxx so it gets loaded • Fill data into Reflex when loading library • Generate wrappers on demand (JIT) clang can now parse itself (.h + .cpp), parses 93.7% of ROOT's headers Axel Naumann • ROOT Team Meeting

  7. Q'n'D LLVM Dictionary header clang GCCXML clr* genreflex Reflex Cintex CINT TCint TClass *: by Zdenek Axel Naumann • ROOT Team Meeting

  8. Full Clang Dictionary Before replacing rootcint Replace TCint by TCling, but keep TClass: use clang's type database instead of G__struct to feed TClass etc Problem: at this point we have no cling interpreter yet, need to copy data in clang type database to CINT; interpretation still through CINT Axel Naumann • ROOT Team Meeting

  9. Full Clang Dictionary header clang GCCXML On demand Reflex API genreflex Reflex Also replaces rootcint! Cintex CINT TCling TCint TClass Axel Naumann • ROOT Team Meeting

  10. Timeline With FNAL's help! get library size; test drive on Windows by end of March genreflex/GCCXML replacement ("q'n'd LLVM dictionary") by July Full clang dict (TCling, CINT forwarding, no Reflex-API adaptor yet) by December TS working on cling (i.e. interpreter / ACLiC) starting May / June? Axel Naumann • ROOT Team Meeting

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