Eliminate early semantic arc opts run.

[gottesmm]

No description provided.

[gottesmm]

@swift-ci benchmark

[swift-ci]

Performance: -O

Regression	OLD	NEW	DELTA	RATIO
String.replaceSubrange.RepChar.Small	353	406	+15.0%	0.87x (?)

Code size: -O

Improvement	OLD	NEW	DELTA	RATIO
NSDictionaryCastToSwift.o	1594	1546	-3.0%	1.03x

Performance: -Osize

Regression	OLD	NEW	DELTA	RATIO
String.replaceSubrange.RepChar.Small	354	404	+14.1%	0.88x (?)
ObjectiveCBridgeFromNSArrayAnyObjectToString	42400	46500	+9.7%	0.91x (?)

Code size: -Osize

Improvement	OLD	NEW	DELTA	RATIO
NSDictionaryCastToSwift.o	1625	1577	-3.0%	1.03x

Performance: -Onone

Regression	OLD	NEW	DELTA	RATIO
ObjectiveCBridgeStubFromNSStringRef	205	262	+27.8%	0.78x (?)
String.replaceSubrange.RepChar.Small	361	412	+14.1%	0.88x (?)
RemoveWhereFilterStrings	3638	4076	+12.0%	0.89x (?)
FatCompactMap	419170	461650	+10.1%	0.91x (?)
WordCountUniqueUTF16	11890	13080	+10.0%	0.91x (?)
ObjectiveCBridgeStubFromNSDateRef	4310	4740	+10.0%	0.91x (?)
WordCountUniqueASCII	11470	12580	+9.7%	0.91x (?)
QueueGeneric	22470	24530	+9.2%	0.92x (?)
DictionaryCompactMapValuesOfCastValue	61668	67284	+9.1%	0.92x (?)
Improvement	OLD	NEW	DELTA	RATIO
NormalizedIterator_ascii	522	456	-12.6%	1.14x (?)
NormalizedIterator_latin1	830	750	-9.6%	1.11x (?)

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 Pro
  Model Identifier: MacPro6,1
  Processor Name: 12-Core Intel Xeon E5
  Processor Speed: 2.7 GHz
  Number of Processors: 1
  Total Number of Cores: 12
  L2 Cache (per Core): 256 KB
  L3 Cache: 30 MB
  Memory: 64 GB

[gottesmm]

@swift-ci benchmark

[gottesmm]

Perf looks good. Going to disable this after updating tests.

[gottesmm]

Running benchmark again to double check.

[swift-ci]

Performance: -O

Code size: -O

Improvement	OLD	NEW	DELTA	RATIO
NSDictionaryCastToSwift.o	1594	1546	-3.0%	1.03x

Performance: -Osize

Regression	OLD	NEW	DELTA	RATIO
FlattenListLoop	2665	3166	+18.8%	0.84x (?)
IterateData	828	906	+9.4%	0.91x

Code size: -Osize

Improvement	OLD	NEW	DELTA	RATIO
NSDictionaryCastToSwift.o	1625	1577	-3.0%	1.03x

Performance: -Onone

Regression	OLD	NEW	DELTA	RATIO
Data.hash.Empty	94	102	+8.5%	0.92x (?)
Improvement	OLD	NEW	DELTA	RATIO
ArrayOfGenericPOD2	836	751	-10.2%	1.11x (?)

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: 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

[gottesmm]

Locally this seems not to make anything fail.

[gottesmm]

@swift-ci test

[gottesmm]

@swift-ci test windows platform