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| author | Douglas Gregor <dgregor@apple.com> | 2009-04-21 23:56:24 +0000 |
|---|---|---|
| committer | Douglas Gregor <dgregor@apple.com> | 2009-04-21 23:56:24 +0000 |
| commit | 37e2684abfe38207fdb90620da062bb18c23f29a (patch) | |
| tree | e6133b2dba7f58acdc97c3cecb98b19a091fbc08 /lib/CodeGen/CodeGenModule.cpp | |
| parent | 868210e64ee979670424fd160b85744b8281b310 (diff) | |
Lazy deserialization of macro definitions for precompiled headers.
This optimization improves performance on the Carbon-prefixed "Hello,
World!" example by 57%. For reference, we're now about 2.25x faster
than GCC PCH. We're also pulling in far less of the PCH file:
*** PCH Statistics:
411/20693 types read (1.986179%)
2553/59230 declarations read (4.310316%)
1093/44646 identifiers read (2.448148%)
1/32954 statements read (0.003035%)
21/6187 macros read (0.339421%)
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69755 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CodeGenModule.cpp')
0 files changed, 0 insertions, 0 deletions