[PATCH] D41514: [Index] Reduce size of SymbolInfo struct.

[Sam McCall via Phabricator via cfe-commits]

sammccall created this revision.
sammccall added a reviewer: akyrtzi.
Herald added subscribers: cfe-commits, ilya-biryukov.

This is currently 16 bytes, the patch reduces it to 4.
(Building with clang on linux x84, I guess others are similar)

The only subfield that might need a bigger type is SymbolPropertySet,
I've moved it to the end of the struct so if it grows, SymbolInfo will
only be 8 bytes.

With a full index of namespace-scope symbols from the LLVM project (200k)
loaded into clangd, this saves ~2MB of RAM.


Repository:
  rC Clang

https://reviews.llvm.org/D41514

Files:
  include/clang/Index/IndexSymbol.h
  lib/Index/IndexSymbol.cpp
  tools/libclang/CXIndexDataConsumer.cpp

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