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Chandler Carruth 24ce5e9526 Re-instate r187323 which fast-tracks promotable allocas as soon as the 
SROA-based analysis has enough information. This should work now that
both mem2reg *and* the SSAUpdater-based AllocaPromoter have been updated
to be able to promote the types of allocas that the SROA analysis
detects.

I've included tests for the AllocaPromoter that were only possible to
write once we fast-tracked promotable allocas without rewriting them.
This includes a test both for r187347 and r188145.

Original commit log for r187323:
"""
Now that mem2reg understands how to cope with a slightly wider set of uses of
an alloca, we can pre-compute promotability while analyzing an alloca for
splitting in SROA. That lets us short-circuit the common case of a bunch of
trivially promotable allocas. This cuts 20% to 30% off the run time of SROA for
typical frontend-generated IR sequneces I'm seeing. It gets the new SROA to
within 20% of ScalarRepl for such code. My current benchmark for these numbers
is PR15412, but it fits the general pattern of IR emitted by Clang so it should
be widely applicable.
"""

llvm-svn: 188146
2013-08-11 02:17:11 +00:00
autoconf Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
bindings We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
cmake Add three missing CMake variables that need to make it to the 2013-08-08 01:15:37 +00:00
docs [docs] Update TestingGuide's note on how to run with Valgrind. 2013-08-09 19:39:48 +00:00
examples ExceptionDemo.cpp: Tweak a @param. [-Wdocumentation] 2013-07-29 11:03:50 +00:00
include Add a overload to CostTable which allows it to infer the size of the table. 2013-08-09 19:33:32 +00:00
lib Re-instate r187323 which fast-tracks promotable allocas as soon as the 2013-08-11 02:17:11 +00:00
projects Build with the $RDYNAMIC flag on Darwin as well as other platforms. 2013-08-04 22:06:11 +00:00
runtime Use @rpath for libraries rather than @executable_path on OSX. 2013-08-02 01:51:52 +00:00
test Revert r188119 "Kill some duplicated code for removing unreachable BBs." 2013-08-10 20:16:06 +00:00
tools Remove byte order mark from source file. 2013-08-09 10:31:14 +00:00
unittests Fix off-by-one error in Regex::isValid 2013-08-08 17:32:45 +00:00
utils [lit] Remove old ExamplesTests directory. 2013-08-09 21:39:36 +00:00
.arcconfig
.gitignore
CMakeLists.txt Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
CODE_OWNERS.TXT Add more owners to CODE_OWNERS.TXT (Kostya Serebryany: AddressSanitizer and ThreadSanitizer; Evgeniy Stepanov: MemorySanitizer) 2013-06-27 08:47:12 +00:00
configure Add support for linking against a curses library when available and 2013-08-07 08:47:36 +00:00
CREDITS.TXT Identify me on IRC. 2013-06-18 22:09:36 +00:00
LICENSE.TXT Be more specific and capitalize filenames. 2013-05-21 21:22:34 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile Fix regular expression used by 'make update' to only look for 'I' and '?' at the start of svn info results and to check for spaces after 'I' instead of just after '?'. 2013-07-03 14:48:37 +00:00
Makefile.common
Makefile.config.in Add an autoconf option for turning on -gsplit-dwarf by default 2013-06-25 01:12:25 +00:00
Makefile.rules Remove oddly named libraries with "make uninstall-local" 2013-08-06 12:50:45 +00:00
README.txt

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,
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LLVM is open source software. You may freely distribute it under the terms of
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Please see the documentation provided in docs/ for further
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documentation setup.

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