[ownership] Begin updating existential specializer.

[gottesmm]

I can not update all of the tests until I fix SILCombine and we move the
ownership lowering to right before the existential specializer (the sil tests
depend on the former and the swift tests depend on both). But this at least
begins updating the tests and ensures that the updates do not break the pass
when we run it on non-ossa code.

[gottesmm]

@swift-ci test

[gottesmm]

@swift-ci benchmark

[gottesmm]

@swift-ci smoke test compiler performance

[swift-ci]

Performance: -O

Regression	OLD	NEW	DELTA	RATIO
SuffixArray	4	5	+25.0%	0.80x (?)
ObjectiveCBridgeStubToNSStringRef	70	76	+8.6%	0.92x (?)

Code size: -O

Performance: -Osize

Regression	OLD	NEW	DELTA	RATIO
FlattenListLoop	965	1532	+58.8%	0.63x (?)
FlattenListFlatMap	2765	4225	+52.8%	0.65x (?)
Improvement	OLD	NEW	DELTA	RATIO
DropWhileSequence	15	14	-6.7%	1.07x (?)

Code size: -Osize

Performance: -Onone

Code size: -swiftlibs

How to read the data

The tables contain differences in performance which are larger than 8% and differences in code size which are larger than 1%.

If you see any unexpected regressions, you should consider fixing the
regressions before you merge the PR.

Noise: Sometimes the performance results (not code size!) contain false
alarms. Unexpected regressions which are marked with '(?)' are probably noise.
If you see regressions which you cannot explain you can try to run the
benchmarks again. If regressions still show up, please consult with the
performance team (@eeckstein).

Hardware Overview

  Model Name: Mac mini
  Model Identifier: Macmini8,1
  Processor Name: 6-Core Intel Core i7
  Processor Speed: 3.2 GHz
  Number of Processors: 1
  Total Number of Cores: 6
  L2 Cache (per Core): 256 KB
  L3 Cache: 12 MB
  Memory: 64 GB

[swift-ci]

Build failed
Swift Test Linux Platform
Git Sha - 6017ef5

[gottesmm]

Linux was a time out.

[gottesmm]

@swift-ci test linux platform

[swift-ci]

Summary for master smoketest

No regressions above thresholds

• Debug
  • debug brief
  • debug detailed
• Release
  • release brief
  • release detailed

Debug

debug brief

Regressed (0)

name	old	new	delta	delta_pct

Improved (0)

name	old	new	delta	delta_pct

Unchanged (delta < 1.0% or delta < 100.0ms) (3)

name	old	new	delta	delta_pct
Frontend.NumInstructionsExecuted	1,627,053,931,715	1,625,394,136,761	-1,659,794,954	-0.1%
LLVM.NumLLVMBytesOutput	24,267,516	24,267,824	308	0.0%
time.swift-driver.wall	109.7s	109.9s	235.1ms	0.21%

debug detailed

Regressed (0)

name	old	new	delta	delta_pct

Improved (0)

name	old	new	delta	delta_pct

Unchanged (delta < 1.0% or delta < 100.0ms) (16)

name	old	new	delta	delta_pct
AST.NumLoadedModules	3,334	3,334	0	0.0%
AST.NumTotalClangImportedEntities	31,374	31,374	0	0.0%
IRModule.NumIRBasicBlocks	87,267	87,267	0	0.0%
IRModule.NumIRFunctions	43,207	43,207	0	0.0%
IRModule.NumIRGlobals	48,853	48,853	0	0.0%
IRModule.NumIRInsts	1,133,647	1,133,647	0	0.0%
IRModule.NumIRValueSymbols	86,088	86,088	0	0.0%
LLVM.NumLLVMBytesOutput	24,267,516	24,267,824	308	0.0%
SILModule.NumSILGenFunctions	24,503	24,503	0	0.0%
SILModule.NumSILOptFunctions	29,205	29,205	0	0.0%
Sema.NumConformancesDeserialized	59,344	59,344	0	0.0%
Sema.NumConstraintScopes	140,791	140,791	0	0.0%
Sema.NumDeclsDeserialized	606,292	606,292	0	0.0%
Sema.NumGenericSignatureBuilders	10,691	10,691	0	0.0%
Sema.NumLazyIterableDeclContexts	101,882	101,882	0	0.0%
Sema.NumTypesDeserialized	224,107	224,107	0	0.0%

Release

release brief

Regressed (0)

name	old	new	delta	delta_pct

Improved (0)

name	old	new	delta	delta_pct

Unchanged (delta < 1.0% or delta < 100.0ms) (3)

name	old	new	delta	delta_pct
Frontend.NumInstructionsExecuted	1,038,833,947,526	1,039,517,675,858	683,728,332	0.07%
LLVM.NumLLVMBytesOutput	29,839,564	29,839,404	-160	-0.0%
time.swift-driver.wall	170.4s	170.6s	104.6ms	0.06%

release detailed

Regressed (0)

name	old	new	delta	delta_pct

Improved (0)

name	old	new	delta	delta_pct

Unchanged (delta < 1.0% or delta < 100.0ms) (16)

name	old	new	delta	delta_pct
AST.NumLoadedModules	266	266	0	0.0%
AST.NumTotalClangImportedEntities	10,500	10,500	0	0.0%
IRModule.NumIRBasicBlocks	77,960	77,960	0	0.0%
IRModule.NumIRFunctions	41,888	41,888	0	0.0%
IRModule.NumIRGlobals	53,269	53,269	0	0.0%
IRModule.NumIRInsts	777,946	777,946	0	0.0%
IRModule.NumIRValueSymbols	92,877	92,877	0	0.0%
LLVM.NumLLVMBytesOutput	29,839,564	29,839,404	-160	-0.0%
SILModule.NumSILGenFunctions	17,880	17,880	0	0.0%
SILModule.NumSILOptFunctions	14,561	14,561	0	0.0%
Sema.NumConformancesDeserialized	44,287	44,287	0	0.0%
Sema.NumConstraintScopes	164,028	164,028	0	0.0%
Sema.NumDeclsDeserialized	117,241	117,241	0	0.0%
Sema.NumGenericSignatureBuilders	3,271	3,271	0	0.0%
Sema.NumLazyIterableDeclContexts	15,122	15,122	0	0.0%
Sema.NumTypesDeserialized	63,135	63,135	0	0.0%