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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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| .. | ||
| 2008-11-17-Shl64.ll | ||
| 2009-01-08-Crash.ll | ||
| 2009-01-14-Remat-Crash.ll | ||
| 2009-03-27-v2f64-param.ll | ||
| 2009-07-15-store192.ll | ||
| 2010-02-25-LSR-Crash.ll | ||
| 2011-01-31-DAGCombineBug.ll | ||
| 2011-08-01-DynamicAllocBug.ll | ||
| addsub64.ll | ||
| aliases.ll | ||
| align.ll | ||
| alignment.ll | ||
| ashr.ll | ||
| atomic.ll | ||
| basictest.ll | ||
| bigstructret.ll | ||
| byVal.ll | ||
| call.ll | ||
| codemodel.ll | ||
| constants.ll | ||
| DbgValueOtherTargets.test | ||
| dwarf_debug.ll | ||
| epilogue_prologue.ll | ||
| events.ll | ||
| exception.ll | ||
| float-intrinsics.ll | ||
| fneg.ll | ||
| getid.ll | ||
| globals.ll | ||
| indirectbr.ll | ||
| inline-asm.ll | ||
| ladd_lsub_combine.ll | ||
| licm-ldwcp.ll | ||
| linkage.ll | ||
| lit.local.cfg | ||
| llvm-intrinsics.ll | ||
| load.ll | ||
| memcpy.ll | ||
| misc-intrinsics.ll | ||
| mkmsk.ll | ||
| mul64.ll | ||
| offset_folding.ll | ||
| private.ll | ||
| ps-intrinsics.ll | ||
| resources_combine.ll | ||
| resources.ll | ||
| scavenging.ll | ||
| sext.ll | ||
| shedulingPreference.ll | ||
| sr-intrinsics.ll | ||
| store.ll | ||
| switch_long.ll | ||
| switch.ll | ||
| threads.ll | ||
| tls.ll | ||
| trampoline.ll | ||
| trap.ll | ||
| unaligned_load.ll | ||
| unaligned_store_combine.ll | ||
| unaligned_store.ll | ||
| varargs.ll | ||
| zext.ll | ||
| zextfree.ll | ||