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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
..
Inputs [thinlto] Basic thinlto fdo heuristic 2016-09-26 20:37:32 +00:00
2006-12-11-Cast-ConstExpr.ll
2009-06-11-FirstClassAggregateConstant.ll
aggregateInstructions.3.2.ll
aggregateInstructions.3.2.ll.bc
anon-functions.ll
arm32_neon_vcnt_upgrade.ll
atomic.ll
attributes-3.3.ll
attributes-3.3.ll.bc
attributes.ll Add writeonly IR attribute 2016-07-04 08:01:29 +00:00
auto_upgrade_intrinsics.bc Upgrade TBAA *before* upgrading intrinsics 2016-03-16 23:17:54 +00:00
avr-calling-conventions.ll [AVR] Add calling convention parser tokens 2016-03-03 10:08:02 +00:00
avr-calling-conventions.ll.bc [AVR] Add calling convention parser tokens 2016-03-03 10:08:02 +00:00
binaryFloatInstructions.3.2.ll
binaryFloatInstructions.3.2.ll.bc
binaryIntInstructions.3.2.ll
binaryIntInstructions.3.2.ll.bc
bitcode-wrapper-header-armv7m.ll [llvm-bcanalyzer] Dump bitcode wrapper header 2016-01-29 05:55:09 +00:00
bitcode-wrapper-header-x86_64.ll [llvm-bcanalyzer] Dump bitcode wrapper header 2016-01-29 05:55:09 +00:00
bitwiseInstructions.3.2.ll
bitwiseInstructions.3.2.ll.bc
blockaddress.ll
calling-conventions.3.2.ll
calling-conventions.3.2.ll.bc
case-ranges-3.3.ll
case-ranges-3.3.ll.bc
cmpxchg-upgrade.ll
cmpxchg-upgrade.ll.bc
cmpxchg.3.6.ll
cmpxchg.3.6.ll.bc
compatibility-3.6.ll Sort the enums in Attributes.h in case insensitive alphabetical order. 2015-11-11 02:11:46 +00:00
compatibility-3.6.ll.bc
compatibility-3.7.ll Sort the enums in Attributes.h in case insensitive alphabetical order. 2015-11-11 02:11:46 +00:00
compatibility-3.7.ll.bc
compatibility-3.8.ll [Bitcode] Add compatibility test for the 3.8 release 2016-03-16 05:43:03 +00:00
compatibility-3.8.ll.bc [Bitcode] Add compatibility test for the 3.8 release 2016-03-16 05:43:03 +00:00
compatibility-3.9.ll [Bitcode] Add compatibility test for the 3.9 release 2016-09-09 17:24:31 +00:00
compatibility-3.9.ll.bc [Bitcode] Add compatibility test for the 3.9 release 2016-09-09 17:24:31 +00:00
compatibility.ll BitcodeWriter: fix emission of invoke when calling a var-arg function with operand bundles 2016-09-19 21:27:04 +00:00
constantsTest.3.2.ll
constantsTest.3.2.ll.bc
conversionInstructions.3.2.ll
conversionInstructions.3.2.ll.bc
debug-loc-again.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
DICompileUnit-no-DWOId.ll
DICompileUnit-no-DWOId.ll.bc
diglobalvariable-3.8.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
diglobalvariable-3.8.ll.bc DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
DILocalVariable-explicit-tags.ll [Bitcode] Fix + regenerate old test so that it includes a DICompileUnit. 2016-04-12 15:51:23 +00:00
DILocalVariable-explicit-tags.ll.bc [Bitcode] Fix + regenerate old test so that it includes a DICompileUnit. 2016-04-12 15:51:23 +00:00
DISubprogram-distinct-definitions.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
DISubprogram-distinct-definitions.ll.bc [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
dityperefs-3.8.ll DebugInfo: New metadata representation for global variables. 2016-09-13 01:12:59 +00:00
dityperefs-3.8.ll.bc BitcodeReader: Fix some holes in upgrade from r267296 2016-04-24 06:52:01 +00:00
drop-debug-info.3.5.ll
drop-debug-info.3.5.ll.bc
extractelement.ll
fcmp-fast.ll
flags.ll
function-encoding-rel-operands.ll
function-local-metadata.3.5.ll
function-local-metadata.3.5.ll.bc
global-variables.3.2.ll
global-variables.3.2.ll.bc
highLevelStructure.3.2.ll
highLevelStructure.3.2.ll.bc
identification.ll
inalloca.ll
invalid.ll Add writeonly IR attribute 2016-07-04 08:01:29 +00:00
invalid.ll.bc Add writeonly IR attribute 2016-07-04 08:01:29 +00:00
invalid.test [BitCode] Make sure atomicrmw's argument is an actual PointerType 2016-06-05 18:43:40 +00:00
linkage-types-3.2.ll
linkage-types-3.2.ll.bc
local-linkage-default-visibility.3.4.ll
local-linkage-default-visibility.3.4.ll.bc
mdnodes-distinct-in-post-order.ll BitcodeWriter: Emit uniqued subgraphs after all distinct nodes 2016-04-23 04:59:22 +00:00
mdnodes-distinct-nodes-break-cycles.ll BitcodeWriter: Emit uniqued subgraphs after all distinct nodes 2016-04-23 04:59:22 +00:00
mdnodes-distinct-nodes-first.ll BitcodeWriter: Emit distinct nodes before uniqued nodes 2016-04-23 04:42:39 +00:00
mdnodes-in-post-order.ll BitcodeWriter: Emit metadata in post-order (again) 2016-04-21 01:55:12 +00:00
mdstring-high-bits.ll
memInstructions.3.2.ll
memInstructions.3.2.ll.bc
metadata-2.ll
metadata-function-blocks.ll BitcodeWriter: Emit metadata in post-order (again) 2016-04-21 01:55:12 +00:00
metadata-only-empty-string.ll BitcodeReader: Allow METADATA_STRINGS to only have !"" 2016-03-29 05:25:17 +00:00
metadata-strings.ll Reapply ~"Bitcode: Collect all MDString records into a single blob" 2016-03-27 23:17:54 +00:00
metadata.3.5.ll
metadata.3.5.ll.bc
metadata.ll
miscInstructions.3.2.ll
miscInstructions.3.2.ll.bc
module_hash.ll Move summary creation out of llvm-as into opt 2016-04-12 21:35:18 +00:00
null-type.ll
null-type.ll.bc
old-aliases.ll
old-aliases.ll.bc
operand-bundles-bc-analyzer.ll Symbolize operand bundle blocks for bcanalyzer 2016-04-26 05:59:08 +00:00
operand-bundles.ll
padding.test
pr18704.ll
pr18704.ll.bc
PR23310.test
ptest-new.ll
ptest-old.ll
select.ll
shuffle.ll
source-filename.test Restore "[ThinLTO] Use MD5 hash in function index." with fix 2016-02-10 21:55:02 +00:00
ssse3_palignr.ll
standardCIntrinsic.3.2.ll Revert "Change memcpy/memset/memmove to have dest and source alignments." 2015-11-19 05:56:52 +00:00
standardCIntrinsic.3.2.ll.bc
summary_version.ll [thinlto] Basic thinlto fdo heuristic 2016-09-26 20:37:32 +00:00
tailcall.ll
terminatorInstructions.3.2.ll
terminatorInstructions.3.2.ll.bc
thinlto-alias.ll [thinlto] Basic thinlto fdo heuristic 2016-09-26 20:37:32 +00:00
thinlto-empty-summary-section.ll [ThinLTO] Always emit a summary when compiling in ThinLTO mode 2016-09-20 23:07:17 +00:00
thinlto-function-summary-callgraph-pgo.ll [thinlto] Basic thinlto fdo heuristic 2016-09-26 20:37:32 +00:00
thinlto-function-summary-callgraph-profile-summary.ll [thinlto] Basic thinlto fdo heuristic 2016-09-26 20:37:32 +00:00
thinlto-function-summary-callgraph.ll [thinlto] Basic thinlto fdo heuristic 2016-09-26 20:37:32 +00:00
thinlto-function-summary-originalnames.ll [ThinLTO] Use valueid instead of bitcode offsets in combined index file 2016-04-27 13:28:35 +00:00
thinlto-function-summary-refgraph.ll [thinlto] Basic thinlto fdo heuristic 2016-09-26 20:37:32 +00:00
thinlto-function-summary.ll Fix test after renaming -name-anon-functions pass to -name-anon-globals 2016-09-16 17:18:16 +00:00
thinlto-summary-globalvar.ll [PM] Port ModuleSummaryIndex analysis to new pass manager 2016-08-12 13:53:02 +00:00
thinlto-summary-linkage-types.ll [ThinLTO] Use valueid instead of bitcode offsets in combined index file 2016-04-27 13:28:35 +00:00
thinlto-summary-section.ll [ThinLTO] Use valueid instead of bitcode offsets in combined index file 2016-04-27 13:28:35 +00:00
upgrade-global-ctors.ll
upgrade-global-ctors.ll.bc
upgrade-loop-metadata.ll
upgrade-loop-metadata.ll.bc
upgrade-module-flag.ll Fix autoupgrade logic for Objective-C class properties module flag 2016-09-16 00:38:18 +00:00
upgrade-subprogram-this.ll [codeview] Add DISubprogram::ThisAdjustment 2016-07-01 02:41:21 +00:00
upgrade-subprogram-this.ll.bc [codeview] Add DISubprogram::ThisAdjustment 2016-07-01 02:41:21 +00:00
upgrade-subprogram.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
upgrade-subprogram.ll.bc DI: Reverse direction of subprogram -> function edge. 2015-11-05 22:03:56 +00:00
upgrade-tbaa.ll
use-list-order2.ll
use-list-order.ll
variableArgumentIntrinsic.3.2.ll
variableArgumentIntrinsic.3.2.ll.bc
vectorInstructions.3.2.ll
vectorInstructions.3.2.ll.bc
visibility-styles.3.2.ll
visibility-styles.3.2.ll.bc
vst-forward-declaration.ll
weak-cmpxchg-upgrade.ll
weak-cmpxchg-upgrade.ll.bc
weak-macho-3.5.ll
weak-macho-3.5.ll.bc