diff options
| author | Martin Storsjö <martin@martin.st> | 2019-02-01 14:22:58 +0300 |
|---|---|---|
| committer | Janne Grunau <janne-vlc@jannau.net> | 2019-02-04 15:03:17 +0300 |
| commit | ad4d1c4383b7705157807f2c364fca3ee3d713ef (patch) | |
| tree | 9ee67aed3f148516ba7b0b3c0f0880863cf90a6e /src/arm/64/looprestoration.S | |
| parent | 8a52189f0dfc18ccfa7a17f0e5d97ca4434806f1 (diff) | |
arm64: looprestoration: Optimize loop termination checks in copy_narrow_neon
Diffstat (limited to 'src/arm/64/looprestoration.S')
| -rw-r--r-- | src/arm/64/looprestoration.S | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/arm/64/looprestoration.S b/src/arm/64/looprestoration.S index 7588253..cf86134 100644 --- a/src/arm/64/looprestoration.S +++ b/src/arm/64/looprestoration.S @@ -498,9 +498,8 @@ function copy_narrow_neon, export=1 add x7, x0, x1 lsl x1, x1, #1 18: - cmp w4, #8 - b.lt 110f subs w4, w4, #8 + b.lt 110f ld1 {v0.8b}, [x2], #8 st1 {v0.b}[0], [x0], x1 st1 {v0.b}[1], [x7], x1 @@ -513,6 +512,7 @@ function copy_narrow_neon, export=1 b.le 0f b 18b 110: + add w4, w4, #8 asr x1, x1, #1 11: subs w4, w4, #1 @@ -526,9 +526,8 @@ function copy_narrow_neon, export=1 add x7, x0, x1 lsl x1, x1, #1 24: - cmp w4, #4 - b.lt 210f subs w4, w4, #4 + b.lt 210f ld1 {v0.4h}, [x2], #8 st1 {v0.h}[0], [x0], x1 st1 {v0.h}[1], [x7], x1 @@ -537,6 +536,7 @@ function copy_narrow_neon, export=1 b.le 0f b 24b 210: + add w4, w4, #4 asr x1, x1, #1 22: subs w4, w4, #1 @@ -561,9 +561,8 @@ function copy_narrow_neon, export=1 add x7, x0, x1 lsl x1, x1, #1 42: - cmp w4, #2 - b.lt 41f subs w4, w4, #2 + b.lt 41f ld1 {v0.2s}, [x2], #8 st1 {v0.s}[0], [x0], x1 st1 {v0.s}[1], [x7], x1 |