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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2015-10-23 09:04:55 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2015-10-23 09:04:55 +0000 |
| commit | 94355aeff81696e92e26b6022453611c06204e54 (patch) | |
| tree | d546c2e9cd3034ed73ff731fdc8daf135b6bb6ac /clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp | |
| parent | cae21e4b4ea2b16b5e31ccabb4e014c67558dfbd (diff) | |
| download | llvm-94355aeff81696e92e26b6022453611c06204e54.zip llvm-94355aeff81696e92e26b6022453611c06204e54.tar.gz llvm-94355aeff81696e92e26b6022453611c06204e54.tar.bz2 | |
[AST] Re-add TypeLocs and NestedNameSpecifierLocs to the ParentMap.
This relands r250831 after some fixes to shrink the ParentMap overall
with one addtional tweak: nodes with pointer identity (e.g. Decl* and
friends) can be store more efficiently so I put them in a separate map.
All other nodes (so far only TypeLoc and NNSLoc) go in a different map
keyed on DynTypedNode. This further uglifies the code but significantly
reduces memory overhead.
Overall this change still make ParentMap significantly larger but it's
nowhere as bad as before. I see about 25 MB over baseline (pre-r251008)
on X86ISelLowering.cpp. If this becomes an issue we could consider
splitting the maps further as DynTypedNode is still larger (32 bytes)
than a single TypeLoc (16 bytes) but I didn't want to introduce even
more complexity now.
Differential Revision: http://reviews.llvm.org/D14011
llvm-svn: 251101
Diffstat (limited to 'clang/lib/CodeGen/ObjectFilePCHContainerOperations.cpp')
0 files changed, 0 insertions, 0 deletions