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| author | Kostya Serebryany <kcc@google.com> | 2012-04-10 22:29:17 +0000 |
|---|---|---|
| committer | Kostya Serebryany <kcc@google.com> | 2012-04-10 22:29:17 +0000 |
| commit | cff60c1409e36079b4bc6ecbda84565143bf00af (patch) | |
| tree | 37ee207e2155b163af6bc0da9fa27ebccbe92a1d /tools/llvm-stress | |
| parent | 3aef2ff514c879f98571fb91ddbe1142466a6266 (diff) | |
| download | external_llvm-cff60c1409e36079b4bc6ecbda84565143bf00af.zip external_llvm-cff60c1409e36079b4bc6ecbda84565143bf00af.tar.gz external_llvm-cff60c1409e36079b4bc6ecbda84565143bf00af.tar.bz2 | |
[tsan] two more compile-time optimizations:
- don't isntrument reads from constant globals.
Saves ~1.5% of instrumented instructions on CPU2006
(counting static instructions, not their execution).
- don't insrument reads from vtable (which is a global constant too).
Saves ~5%.
I did not measure the run-time impact of this,
but it is certainly non-negative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154444 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-stress')
0 files changed, 0 insertions, 0 deletions