forked from OSchip/llvm-project
75819aedf6
Currently each Function points to a DISubprogram and DISubprogram has a scope field. For member functions the scope is a DICompositeType. DIScopes point to the DICompileUnit to facilitate type uniquing. Distinct DISubprograms (with isDefinition: true) are not part of the type hierarchy and cannot be uniqued. This change removes the subprograms list from DICompileUnit and instead adds a pointer to the owning compile unit to distinct DISubprograms. This would make it easy for ThinLTO to strip unneeded DISubprograms and their transitively referenced debug info. Motivation ---------- Materializing DISubprograms is currently the most expensive operation when doing a ThinLTO build of clang. We want the DISubprogram to be stored in a separate Bitcode block (or the same block as the function body) so we can avoid having to expensively deserialize all DISubprograms together with the global metadata. If a function has been inlined into another subprogram we need to store a reference the block containing the inlined subprogram. Attached to https://llvm.org/bugs/show_bug.cgi?id=27284 is a python script that updates LLVM IR testcases to the new format. http://reviews.llvm.org/D19034 <rdar://problem/25256815> llvm-svn: 266446 |
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| .. | ||
| 2009-01-25-SingleEntryPhi.ll | ||
| PhiRename-1.ll | ||
| PhiSelfReference-1.ll | ||
| alloca.ll | ||
| basic.ll | ||
| convergent.ll | ||
| crash.ll | ||
| dbgvalue.ll | ||
| indirectbr.ll | ||
| multiple-exits.ll | ||
| nosimplifylatch.ll | ||
| oz-disable.ll | ||
| phi-duplicate.ll | ||
| pr2639.ll | ||
| pr22337.ll | ||
| preserve-loop-simplify.ll | ||
| preserve-scev.ll | ||
| simplifylatch.ll | ||