[FFmpeg-devel] [PATCH 21/34] arm: vp9lpf: Use orrs instead of orr+cmp
Martin Storsjö
martin at martin.st
Wed Mar 8 12:01:01 EET 2017
This is cherrypicked from libav commit
435cd7bc99671bf561193421a50ac6e9d63c4266.
---
libavcodec/arm/vp9lpf_neon.S | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/libavcodec/arm/vp9lpf_neon.S b/libavcodec/arm/vp9lpf_neon.S
index 2761956..3d289e5 100644
--- a/libavcodec/arm/vp9lpf_neon.S
+++ b/libavcodec/arm/vp9lpf_neon.S
@@ -78,8 +78,7 @@
vdup.u8 d3, r3 @ H
vmov r2, r3, d4
- orr r2, r2, r3
- cmp r2, #0
+ orrs r2, r2, r3
@ If no pixels need filtering, just exit as soon as possible
beq 9f
@@ -192,8 +191,7 @@
.if \wd >= 8
vmov r2, r3, d6
- orr r2, r2, r3
- cmp r2, #0
+ orrs r2, r2, r3
@ If no pixels need flat8in, jump to flat8out
@ (or to a writeout of the inner 4 pixels, for wd=8)
beq 6f
@@ -248,14 +246,12 @@
6:
vorr d2, d6, d7
vmov r2, r3, d2
- orr r2, r2, r3
- cmp r2, #0
+ orrs r2, r2, r3
@ If no pixels needed flat8in nor flat8out, jump to a
@ writeout of the inner 4 pixels
beq 7f
vmov r2, r3, d7
- orr r2, r2, r3
- cmp r2, #0
+ orrs r2, r2, r3
@ If no pixels need flat8out, jump to a writeout of the inner 6 pixels
beq 8f
--
2.7.4
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