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2076af0184
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Kostya Serebryany 2076af0184 [tsan] compile-time instrumentation: do not instrument a read if 
a write to the same temp follows in the same BB.
Also add stats printing.

On Spec CPU2006 this optimization saves roughly 4% of instrumented reads
(which is 3% of all instrumented accesses):
Writes            : 161216
Reads             : 446458
Reads-before-write: 18295



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154418 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-10 18:18:56 +00:00
autoconf Fix a problem in the target detection for Debian GNU/HURD 2012-04-05 19:34:15 +00:00
bindings [python] Add negative MemoryBuffer testcase 2012-03-22 11:23:52 +00:00
cmake Add InitializeNativeTargetDisassembler function. 2012-03-26 21:56:56 +00:00
docs Express the number of ULPs in fpaccuracy metadata as a real rather than a 2012-04-10 08:22:43 +00:00
examples Switch to a more idiomatic way of silencing unused variable warnings in 2012-02-20 00:02:49 +00:00
include Use the correct section types on Solaris for unwind data on both x86 and x86-64. 2012-04-10 11:44:33 +00:00
lib [tsan] compile-time instrumentation: do not instrument a read if 2012-04-10 18:18:56 +00:00
projects Fix a problem in the target detection for Debian GNU/HURD 2012-04-05 19:34:15 +00:00
runtime Use the correct filename for the error message. 2012-03-28 02:39:06 +00:00
test [tsan] compile-time instrumentation: do not instrument a read if 2012-04-10 18:18:56 +00:00
tools Revert the 'EnableInitializing' flag. There is debate on whether we should run that pass by default in LTO. 2012-04-09 23:16:51 +00:00
unittests Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
utils Fix for register pressure tables. 2012-04-10 03:36:49 +00:00
.gitignore git: Add tools/lldb to the ignore list. 2011-11-10 22:55:50 +00:00
CMakeLists.txt Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
configure Fix a problem in the target detection for Debian GNU/HURD 2012-04-05 19:34:15 +00:00
CREDITS.TXT sort by alpha. 2012-03-12 21:12:59 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile Makefile: add missing files to FilesToConfig 2012-01-17 02:56:49 +00:00
Makefile.common
Makefile.config.in Add profiling support for Intel Parallel Amplifier XE (VTune) for JITted code in LLVM. 2012-03-13 08:33:15 +00:00
Makefile.rules Use a posix compliant regexp in export file construction. 2012-03-12 20:58:14 +00:00
README.txt test commit 2012-03-20 13:12:38 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.