Avoid using -sil-inline-generics and -sil-partial-specialization when building MinSizeRel stdlib to save ~15% on codesize

[kubamracek]

No description provided.

[aschwaighofer]

@swift-ci Please benchmark

[airspeedswift]

I'm guessing this won't benchmark this change, since it's for a new config.

[kubamracek]

@aschwaighofer any remaining concerns about this?

[swift-ci]

Performance: -O

Regression	OLD	NEW	DELTA	RATIO
FlattenListLoop	1633	2461	+50.7%	0.66x (?)
FlattenListFlatMap	3905	4273	+9.4%	0.91x (?)
Improvement	OLD	NEW	DELTA	RATIO
String.data.Medium	145	134	-7.6%	1.08x (?)

Code size: -O

Performance: -Osize

Improvement	OLD	NEW	DELTA	RATIO
UTF8Decode_InitFromData_ascii_as_ascii	723	664	-8.2%	1.09x (?)

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 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

[aschwaighofer]

I think this makes sense. If generic performance becomes a concern we can revisit with a more target application of those optimizations based on annotations.

[kubamracek]

Ok thanks!

[kubamracek]

@swift-ci please test

[swift-ci]

Build failed
Swift Test OS X Platform
Git Sha - d414c3b

[kubamracek]

@swift-ci please test macOS platform