Adam Nemet dd469afe15 New Loop Distribution pass ... Summary: This implements the initial version as was proposed earlier this year (http://lists.cs.uiuc.edu/pipermail/llvmdev/2015-January/080462.html). Since then Loop Access Analysis was split out from the Loop Vectorizer and was made into a separate analysis pass. Loop Distribution becomes the second user of this analysis. The pass is off by default and can be enabled with -enable-loop-distribution. There is currently no notion of profitability; if there is a loop with dependence cycles, the pass will try to split them off from other memory operations into a separate loop. I decided to remove the control-dependence calculation from this first version. This and the issues with the PDT are actively discussed so it probably makes sense to treat it separately. Right now I just mark all terminator instruction required which keeps identical CFGs for each distributed loop. This seems to be working pretty well for 456.hmmer where even though there is an empty if-then block in the distributed loop initially, it gets completely removed. The pass keeps DominatorTree and LoopInfo updated. I've tested this with -loop-distribute-verify with the testsuite where we distribute ~90 loops. SimplifyLoop is violated in some cases and I have a FIXME covering this. Reviewers: hfinkel, nadav, aschwaighofer Reviewed By: aschwaighofer Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D8831 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237358 91177308-0d34-0410-b5e6-96231b3b80d8		2015-05-14 12:05:18 +00:00
..
ADT	Construct ArrayRef<const T*> from vector<T>	2015-05-13 22:43:09 +00:00
Analysis	Constify arguments in AliasSetTracker methods. NFC	2015-05-13 01:12:12 +00:00
AsmParser	Pass a MemoryBufferRef when we can avoid taking ownership.	2014-08-26 21:49:01 +00:00
Bitcode	[opaque pointer type] Encode the pointee type in the bitcode for 'cmpxchg'	2015-04-28 04:30:29 +00:00
CodeGen	Revert r237046. See the testcase on the thread where r237046 was committed.	2015-05-13 23:41:47 +00:00
Config	[ADT][CMake][AutoConf] Fail-fast iterators for DenseMap	2015-03-26 19:25:01 +00:00
DebugInfo	Add more missing #includes, found by modules build.	2015-05-11 22:41:07 +00:00
ExecutionEngine	Fix the clang -Werror build, use of uninitialized variable.	2015-05-05 18:12:33 +00:00
IR	Fix typo on Instruction::insert{After,Before}(). NFC	2015-05-13 22:14:43 +00:00
IRReader	Pass a MemoryBufferRef when we can avoid taking ownership.	2014-08-26 21:49:01 +00:00
LineEditor	Use 'override/final' instead of 'virtual' for overridden methods	2015-04-11 02:11:45 +00:00
Linker	Linker: Add flag to override linkage rules	2015-04-22 04:11:00 +00:00
LTO	LTO: Add API to choose whether to embed uselists	2015-04-27 23:38:54 +00:00
MC	MC: clang-format MCSymbol.h, NFC	2015-05-13 21:41:14 +00:00
Object	[obj2yaml/yaml2obj] Add SHT_MIPS_ABIFLAGS section support	2015-05-07 15:40:48 +00:00
Option	Use 'override/final' instead of 'virtual' for overridden methods	2015-04-11 02:11:45 +00:00
Passes	[PM] Create a separate library for high-level pass management code.	2015-03-07 09:02:36 +00:00
ProfileData	Tidy comments in SampleProfile header. NFC.	2015-05-12 22:03:00 +00:00
Support	YAML: Implement block scalar parsing.	2015-05-13 23:10:51 +00:00
TableGen	[TableGen] Remove ListInit::size() in favor of getSize() which does the same thing and is already used in most places. NFC.	2015-05-14 05:53:56 +00:00
Target	Add missing #include and forward decl, found by modules build.	2015-05-12 21:49:03 +00:00
Transforms	New Loop Distribution pass	2015-05-14 12:05:18 +00:00
CMakeLists.txt
InitializePasses.h	New Loop Distribution pass	2015-05-14 12:05:18 +00:00
LinkAllIR.h
LinkAllPasses.h	Simplify n-ary adds by reassociation	2015-04-14 04:59:22 +00:00
module.modulemap	Fix modules build post-r235612.	2015-04-23 23:22:26 +00:00
module.modulemap.build
Pass.h	Use 'override/final' instead of 'virtual' for overridden methods	2015-04-11 02:11:45 +00:00
PassAnalysisSupport.h	Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition.	2015-02-15 22:54:22 +00:00
PassInfo.h	Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition.	2015-02-15 22:54:22 +00:00
PassRegistry.h	Revert r231276 (including r231277): Add a lock() function in PassRegistry to speed up multi-thread synchronization.	2015-03-05 17:53:00 +00:00
PassSupport.h	Defining a new API for debug options that doesn't rely on static global cl::opts.	2014-10-15 21:54:35 +00:00