[PATCH] D31636: [PDB] Emit index/offset pairs for TPI and IPI streams
Reid Kleckner via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Apr 3 18:34:28 PDT 2017
rnk created this revision.
This lets PDB readers lookup type record data by type index in O(log n)
time. It also enables makes `cvdump -t` work on PDBs produced by LLD.
cvdump will not dump a PDB that doesn't have an index-to-offset table.
The table is sorted by type index, and has an entry every 8KB. Looking
up a type record by index is a binary search of this table, followed by
a scan of at most 8KB.
https://reviews.llvm.org/D31636
Files:
lld/test/COFF/pdb.test
llvm/include/llvm/DebugInfo/PDB/Native/TpiStreamBuilder.h
llvm/lib/DebugInfo/PDB/Native/TpiStream.cpp
llvm/lib/DebugInfo/PDB/Native/TpiStreamBuilder.cpp
llvm/test/DebugInfo/PDB/pdb-yaml-types.test
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