[Lldb-commits] [PATCH] D67022: Skip getting declarations for repeated DIEs (WIP)

Fri Aug 30 14:53:37 PDT 2019

guiandrade added a comment.

Hey guys,

This change is more for me to get to know what you guys think. I've noticed that GetDeclForUIDFromDWARF() calls inside SymbolFileDWARF::ParseDeclsForContext (https://github.com/llvm/llvm-project/blob/ef82098a800178a1f973abb8af86eaa690a29734/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp#L1216) often end up having no side effect besides generating a llvm::DenseMap::find invocation (https://github.com/llvm/llvm-project/blob/f07b4aff06d83c6ad25d95f456fbc12b2d2a0a0c/lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp#L3322), especially when we evaluate multiple expressions inside the same scope. So I was wondering if there's a way to improve that. Do you guys think we could do something like what this change proposes, or am I missing something important? Thanks!

Repository:
  rLLDB LLDB

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67022/new/

https://reviews.llvm.org/D67022