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Sam McCall 4b9bbb378b [clangd] Use Builder for symbol slabs, and use sorted-vector for storage 
Summary:
This improves a few things:
 - the insert -> freeze -> read sequence is now enforced/communicated by the
   type system
 - SymbolSlab::const_iterator iterates over symbols, not over id-symbol pairs
 - we avoid permanently storing a second copy of the IDs, and the
   string map's hashtable

The slab size is now down to 21.8MB for the LLVM project.
Of this only 2.7MB is strings, the rest is #symbols * `sizeof(Symbol)`.
`sizeof(Symbol)` is currently 96, which seems too big - I think
SymbolInfo isn't efficiently packed. That's a topic for another patch!

Also added simple API to see the memory usage/#symbols of a slab, since
it seems likely we will continue to care about this.

Reviewers: ilya-biryukov

Subscribers: klimek, mgrang, cfe-commits

Differential Revision: https://reviews.llvm.org/D41506

llvm-svn: 321412
 		2017-12-23 19:38:03 +00:00
clang [Index] Reduce size of SymbolInfo struct. 2017-12-23 19:31:24 +00:00
clang-tools-extra [clangd] Use Builder for symbol slabs, and use sorted-vector for storage 2017-12-23 19:38:03 +00:00
compiler-rt [Sanitizers] Export aligned new/delete from runtimes. 2017-12-23 00:30:51 +00:00
debuginfo-tests [debuginfo-tests] Support moving debuginfo-tests to llvm/projects 2017-12-12 16:54:20 +00:00
libclc configure.py: Add gfx900 (Vega, Raven) 2017-11-27 11:14:06 +00:00
libcxx Fix the definitions of 'reference' and 'pointer' in string_view that no one uses :-). Thanks to K-ballo for the catch. 2017-12-20 16:31:40 +00:00
libcxxabi [libcxxabi] Pass LIBCXXABI_SYSROOT and LIBCXXABI_GCC_TOOLCHAIN to lit 2017-12-12 01:20:37 +00:00
libunwind [libunwind][MIPS]: Add support for unwinding in O32 and N64 processes. 2017-12-12 21:43:36 +00:00
lld Detemplate reportDuplicate. 2017-12-23 17:21:39 +00:00
lldb debugserver: Propagate environment in launch-mode (pr35671) 2017-12-22 11:09:21 +00:00
llgo irgen: Create functions instead of global variables for builtin hash and equal algorithms. 2017-06-04 22:11:28 +00:00
llvm [X86] Remove type restrictions from WidenMaskArithmetic. 2017-12-23 18:53:05 +00:00
openmp [OMPT] Add missing initialization in nested_lwt.c test case 2017-12-22 19:24:06 +00:00
parallel-libs [Axccel] Remove -Wno-missing-braces in build 2016-12-19 21:34:07 +00:00
polly [CodeGen] Fix noalias annotations for memcpy/memmove. 2017-12-22 17:44:53 +00:00
README.md Add an svn project to contain the files that appear at the root of the 2017-10-19 21:09:49 +00:00

README.md

Low Level Virtual Machine (LLVM)

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.