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define WEBP_USE_INTRINSICS w/gcc-4.9+

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32-bit builds are neutral to slightly faster using ndk r15c on a
N5/S6/CM1

BUG=webp:339

Change-Id: I94b9442e0ceaf2f5edb2b4026bc8b99cd77c918b
(cherry picked from commit 01c426f1e7)
This commit is contained in:
James Zern
2017-09-19 20:15:23 -07:00
parent 5505a5b107
commit a26996116f
1 changed files with 3 additions and 2 deletions
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5
src/dsp/neon.h
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@@ -17,8 +17,9 @@
#include "./dsp.h"
// Right now, some intrinsics functions seem slower, so we disable them
// everywhere except aarch64 where the inline assembly is incompatible.
#if defined(__aarch64__)
// everywhere except newer gcc or aarch64 where the inline assembly is
// incompatible.
#if LOCAL_GCC_PREREQ(4,9) || defined(__aarch64__)
#define WEBP_USE_INTRINSICS // use intrinsics when possible
#endif