forked from OSchip/llvm-project
1e5b7e91aa
Extending the lifetime of these type index mappings does increase memory usage (+2% in my case), but it decouples type merging from symbol merging. This is a pre-requisite for two changes that I have in mind: - parallel type merging: speeds up slow type merging - defered symbol merging: avoid heap allocating (relocating) all symbols This eliminates CVIndexMap and moves its data into TpiSource. The maps are also split into a SmallVector and ArrayRef component, so that the ipiMap can alias the tpiMap for /Z7 object files, and so that both maps can simply alias the PDB type server maps for /Zi files. Splitting TypeServerSource establishes that all input types to be merged can be identified with two 32-bit indices: - The index of the TpiSource object - The type index of the record This is useful, because this information can be stored in a single 64-bit atomic word to enable concurrent hashtable insertion. One last change is that now all object files with debugChunks get a TpiSource, even if they have no type info. This avoids some null checks and special cases. Differential Revision: https://reviews.llvm.org/D87736 |
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| .. | ||
| CMakeLists.txt | ||
| CallGraphSort.cpp | ||
| CallGraphSort.h | ||
| Chunks.cpp | ||
| Chunks.h | ||
| Config.h | ||
| DLL.cpp | ||
| DLL.h | ||
| DebugTypes.cpp | ||
| DebugTypes.h | ||
| Driver.cpp | ||
| Driver.h | ||
| DriverUtils.cpp | ||
| ICF.cpp | ||
| ICF.h | ||
| InputFiles.cpp | ||
| InputFiles.h | ||
| LLDMapFile.cpp | ||
| LLDMapFile.h | ||
| LTO.cpp | ||
| LTO.h | ||
| MapFile.cpp | ||
| MapFile.h | ||
| MarkLive.cpp | ||
| MarkLive.h | ||
| MinGW.cpp | ||
| MinGW.h | ||
| Options.td | ||
| PDB.cpp | ||
| PDB.h | ||
| README.md | ||
| SymbolTable.cpp | ||
| SymbolTable.h | ||
| Symbols.cpp | ||
| Symbols.h | ||
| TypeMerger.h | ||
| Writer.cpp | ||
| Writer.h | ||
README.md
See docs/NewLLD.rst