Piotr Padlewski 3152e057e1 [thinlto] Basic thinlto fdo heuristic ... Summary: This patch improves thinlto importer by importing 3x larger functions that are called from hot block. I compared performance with the trunk on spec, and there were about 2% on povray and 3.33% on milc. These results seems to be consistant and match the results Teresa got with her simple heuristic. Some benchmarks got slower but I think they are just noisy (mcf, xalancbmki, omnetpp)- running the benchmarks again with more iterations to confirm. Geomean of all benchmarks including the noisy ones were about +0.02%. I see much better improvement on google branch with Easwaran patch for pgo callsite inlining (the inliner actually inline those big functions) Over all I see +0.5% improvement, and I get +8.65% on povray. So I guess we will see much bigger change when Easwaran patch will land (it depends on new pass manager), but it is still worth putting this to trunk before it. Implementation details changes: - Removed CallsiteCount. - ProfileCount got replaced by Hotness - hot-import-multiplier is set to 3.0 for now, didn't have time to tune it up, but I see that we get most of the interesting functions with 3, so there is no much performance difference with higher, and binary size doesn't grow as much as with 10.0. Reviewers: eraman, mehdi_amini, tejohnson Subscribers: mehdi_amini, llvm-commits Differential Revision: https://reviews.llvm.org/D24638 llvm-svn: 282437		2016-09-26 20:37:32 +00:00
..
ADT	Allow StringRef to be constructed from a null pointer.	2016-09-26 20:08:05 +00:00
Analysis	[thinlto] Basic thinlto fdo heuristic	2016-09-26 20:37:32 +00:00
AsmParser	[AsmParser] Expose an API to parse a string starting with a type.	2016-03-08 00:37:07 +00:00
Bitcode	[thinlto] Basic thinlto fdo heuristic	2016-09-26 20:37:32 +00:00
CodeGen	MachineInstr: Fix comment typo, further refine comment; NFC	2016-09-26 18:38:05 +00:00
Config	Add an c++ itanium demangler to llvm.	2016-09-06 19:16:48 +00:00
DebugInfo	Revert r282238 "Revert r282235 "[llvm-dwarfdump] - Teach dwarfdump to dump gdb-index section.""	2016-09-23 11:01:53 +00:00
Demangle	Add an c++ itanium demangler to llvm.	2016-09-06 19:16:48 +00:00
ExecutionEngine	Fix MSVC 2013 build by using our <thread> wrapper header	2016-09-13 18:40:04 +00:00
IR	[thinlto] Basic thinlto fdo heuristic	2016-09-26 20:37:32 +00:00
IRReader	[NFC] Header cleanup	2016-04-18 09:17:29 +00:00
LibDriver	[NFC] Header cleanup	2016-04-18 09:17:29 +00:00
LineEditor	Apply clang-tidy's misc-move-constructor-init throughout LLVM.	2016-05-27 14:27:24 +00:00
Linker	Linker: teach the IR mover to return llvm::Error.	2016-05-27 05:21:35 +00:00
LTO	LTO: Simplify caching interface.	2016-09-23 21:33:43 +00:00
MC	Fix typo in comment, NFC	2016-09-26 12:38:03 +00:00
Object	[Stackmap] Added callsite counts to emitted function information.	2016-09-14 20:22:03 +00:00
ObjectYAML	[macho2yaml] Don't write empty linkedit data	2016-08-17 21:46:04 +00:00
Option	Option parser: class for consuming a joined arg in addition to all remaining args	2016-04-15 00:23:30 +00:00
Passes	[PM] Significantly refactor the pass pipeline parsing to be easier to	2016-08-03 03:21:41 +00:00
ProfileData	[Coverage] Clarify a function contract (NFC)	2016-09-23 20:13:44 +00:00
Support	Defer asm errors to post-statement failure	2016-09-16 18:30:20 +00:00
TableGen	[TableGen] Autobrief-ize Record. NFC.	2016-07-14 14:53:14 +00:00
Target	Add support to optionally limit the size of jump tables.	2016-09-26 15:32:33 +00:00
Transforms	Remove pruning of phi nodes in MemorySSA - it makes updating harder	2016-09-26 17:22:54 +00:00
CMakeLists.txt
InitializePasses.h	Rename NameAnonFunctions to NameAnonGlobals to match what it is doing (NFC)	2016-09-16 16:56:30 +00:00
LinkAllIR.h	Remove every uses of getGlobalContext() in LLVM (but the C API)	2016-04-14 21:59:01 +00:00
LinkAllPasses.h	Add a counter-function insertion pass	2016-09-01 09:42:39 +00:00
module.modulemap	[modules] Re-enable some previously excluded files.	2016-09-13 14:41:35 +00:00
module.modulemap.build
Pass.h	Remove unused header.	2016-05-25 22:56:58 +00:00
PassAnalysisSupport.h	Apply clang-tidy's modernize-loop-convert to most of lib/Transforms.	2016-06-26 12:28:59 +00:00
PassInfo.h
PassRegistry.h	[NFC] Header cleanup	2016-04-18 09:17:29 +00:00
PassSupport.h	[LPM] Reinstate r271781 which reinstated r271652 to replace the	2016-06-04 19:57:55 +00:00