George Burgess IV c568184023 [MemorySSA] Update to the new shiny walker. ... This patch updates MemorySSA's use-optimizing walker to be more accurate and, in some cases, faster. Essentially, this changed our core walking algorithm from a cache-as-you-go DFS to an iteratively expanded DFS, with all of the caching happening at the end. Said expansion happens when we hit a Phi, P; we'll try to do the smallest amount of work possible to see if optimizing above that Phi is legal in the first place. If so, we'll expand the search to see if we can optimize to the next phi, etc. An iteratively expanded DFS lets us potentially quit earlier (because we don't assume that we can optimize above all phis) than our old walker. Additionally, because we don't cache as we go, we can now optimize above loops. As an added bonus, this patch adds a ton of verification (if EXPENSIVE_CHECKS are enabled), so finding bugs is easier. Differential Revision: https://reviews.llvm.org/D21777 llvm-svn: 275940		2016-07-19 01:29:15 +00:00
..
Analysis	[X86] Add CTPOP/CTLZ/CTTZ scalar cost tests	2016-07-17 18:29:19 +00:00
Assembler	[ConstantFold] Don't incorrectly infer inbounds on array GEP	2016-07-13 03:24:41 +00:00
Bindings
Bitcode
BugPoint
CodeGen	AMDGPU: Expand register indexing pseudos in custom inserter	2016-07-19 00:35:03 +00:00
DebugInfo	[pdb] Teach MsfBuilder and other classes about the Free Page Map.	2016-07-15 22:17:19 +00:00
Examples
ExecutionEngine	X86: handle external tail calls in Windows JIT	2016-07-14 17:27:06 +00:00
Feature
FileCheck
Instrumentation	[sanitizer-coverage] make sure that calls to __sanitizer_cov_trace_pc are not merged (otherwise different calls get the same PC and confuse fuzzers)	2016-07-14 17:59:01 +00:00
Integer
JitListener
LibDriver
Linker
LTO	Add a libLTO API to query a memory buffer and check if it contains ObjC categories	2016-07-11 23:10:18 +00:00
MC	[MC] Cleanup Error Handling in AsmParser	2016-07-18 15:24:03 +00:00
Object
ObjectYAML
Other
SymbolRewriter
TableGen
ThinLTO/X86
tools	Retry: [llvm-profdata] Speed up merging by using a thread pool	2016-07-19 01:17:20 +00:00
Transforms	[MemorySSA] Update to the new shiny walker.	2016-07-19 01:29:15 +00:00
Unit
Verifier
YAMLParser
.clang-format
CMakeLists.txt
lit.cfg	Review fixes to lit documentation	2016-07-12 20:59:17 +00:00
lit.site.cfg.in
TestRunner.sh