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LLVM backend for 6502
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953be88190
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Erik Eckstein 953be88190 Add a lock() function in PassRegistry to speed up multi-thread synchronization. 
When calling lock() after all passes are registered, the PassRegistry doesn't need a mutex anymore to look up passes.
This speeds up multithreaded llvm execution by ~5% (tested with 4 threads).
In an asserts build of llvm this has an even bigger impact.

Note that it's not required to use the lock function.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231276 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-04 18:57:11 +00:00
autoconf Revert r230812. Do not break builds for no reason. 2015-02-28 19:43:20 +00:00
bindings Restore LLVMLinkModules C API until it is properly deprecated. 2015-03-02 18:59:38 +00:00
cmake [sanitizer/coverage] Add AFL-style coverage counters (search heuristic for fuzzing). 2015-03-03 23:27:02 +00:00
docs Document the LLVM "thunk" attribute added back in r226708 2015-03-04 00:08:56 +00:00
examples Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
include Add a lock() function in PassRegistry to speed up multi-thread synchronization. 2015-03-04 18:57:11 +00:00
lib Add a lock() function in PassRegistry to speed up multi-thread synchronization. 2015-03-04 18:57:11 +00:00
projects Reverse the order libc++ and libc++abi are added in CMake. 2015-03-04 01:16:43 +00:00
test Bring r231132 back with a fix. 2015-03-04 18:51:45 +00:00
tools Bring r231132 back with a fix. 2015-03-04 18:51:45 +00:00
unittests Make DataLayout Non-Optional in the Module 2015-03-04 18:43:29 +00:00
utils [Tablegen] Use correct result number variables with the pattern nodes they go with when handling SDTCisSameAs. No functional change as they are always both 0 unless you try to define a multi result type profile that uses SDTCisSame on one of the other results. 2015-03-04 09:04:54 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt Minor follow-ups to r229720 suggested on llvmdev 2015-02-27 18:22:46 +00:00
CODE_OWNERS.TXT Assume code ownership for the PS4 to ensure patches get reviewed, per the Developer Policy. 2015-01-28 18:33:39 +00:00
configure Revert r230812. Do not break builds for no reason. 2015-02-28 19:43:20 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt Revert test commit 2015-02-04 18:46:00 +00:00

README.txt 

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

This directory and its subdirectories contain source code for LLVM,
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 documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

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