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LLVM backend for 6502
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f891336a25
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Anna Zaks f891336a25 [asan] Skip promotable allocas to improve performance at -O0 
Currently, the ASan executables built with -O0 are unnecessarily slow.
The main reason is that ASan instrumentation pass inserts redundant
checks around promotable allocas. These allocas do not get instrumented
under -O1 because they get converted to virtual registered by mem2reg.
With this patch, ASan instrumentation pass will only instrument non
promotable allocas, giving us a speedup of 39% on a collection of
benchmarks with -O0. (There is no measurable speedup at -O1.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230724 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-27 03:12:36 +00:00
autoconf Support bitrig in autoconf build system. 2015-02-26 19:46:32 +00:00
bindings [PM] Remove the old 'PassManager.h' header file at the top level of 2015-02-13 10:01:29 +00:00
cmake [CMake] Fix the clang-cl self host build. 2015-02-25 20:42:19 +00:00
docs Try to fix a docs link. 2015-02-26 19:48:43 +00:00
examples [Orc][Kaleidoscope] More tutorial cleanup, a little extra debugging output. 2015-02-26 23:52:42 +00:00
include Fix a use-iterator-after-invalidate error 2015-02-27 02:19:11 +00:00
lib [asan] Skip promotable allocas to improve performance at -O0 2015-02-27 03:12:36 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test [asan] Skip promotable allocas to improve performance at -O0 2015-02-27 03:12:36 +00:00
tools llvm-vtabledump: Dump catch/throw exception structures for MS ABI 2015-02-27 00:43:58 +00:00
unittests Silence some Win64 clang-cl warnings about unused stuff due to ifdefs 2015-02-26 21:08:21 +00:00
utils Re-instate the pragma optimize hack for MSVC, but not clang-cl 2015-02-26 21:34:11 +00:00
.arcconfig Updated phabricator server. 2014-04-07 03:57:04 +00:00
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Add one more vim swap file pattern 2015-01-30 21:59:28 +00:00
CMakeLists.txt [CMake] Set policy CMP0051 to OLD globally. 2015-02-24 23:32:47 +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 Support bitrig in autoconf build system. 2015-02-26 19:46:32 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +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,
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Please see the documentation provided in docs/ for further
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