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| author | Dan Albert <danalbert@google.com> | 2019-09-04 13:15:15 -0700 |
|---|---|---|
| committer | Dan Albert <danalbert@google.com> | 2019-09-04 14:23:53 -0700 |
| commit | a78a3dc9ed516d5057a2043c72c5563465c2dca0 (patch) | |
| tree | 66950861438ccb53149ce4bac6bdd01b3dab5479 /docs | |
| parent | d0bb5bc2b9e4592cf09a6c4a2231194fe51b5315 (diff) | |
| download | ndk-a78a3dc9ed516d5057a2043c72c5563465c2dca0.tar.gz | |
Fix build system maintainers guide wrt neon.
Test: None
Bug: https://github.com/android-ndk/ndk/issues/859
Change-Id: Ib91a7eca6737020e4b379e7ffa6e76e2afec1525
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/BuildSystemMaintainers.md | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/docs/BuildSystemMaintainers.md b/docs/BuildSystemMaintainers.md index 4aced904c..16ec28d3f 100644 --- a/docs/BuildSystemMaintainers.md +++ b/docs/BuildSystemMaintainers.md @@ -89,15 +89,16 @@ devices and nearly all 32-bit ARM devices running at least Android Marshmallow is possible that extant devices that were upgraded to Marshmallow do not include NEON support. -Enabling NEON can significantly improve application performance. +NEON can significantly improve application performance. -To enable NEON, pass `-mfpu=neon` when compiling. - -Note: Clang automatically enables NEON for API levels 23 (Marshmallow) and -higher. +Clang automatically enables NEON for all API levels. ARM devices without NEON +are uncommon. To support non-NEON devices, pass `-mfpu=vfpv3-d16` when +compiling. Alternatively, use the Play Console to [blacklist CPUs] without NEON +to disallow your app from being installed on those devices. [Android CDD]: https://source.android.com/compatibility/cdd [NEON]: https://developer.arm.com/technologies/neon +[blacklist CPUs]: https://support.google.com/googleplay/android-developer/answer/7353455?hl=en ### OS Versions [OS Versions]: #os-versions |