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aarch64: Fix ff_hevc_put_hevc_epel_h48_8_neon_i8mm

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The first 32 elements of each row were correct, while the
last 16 were scrambled.

This hasn't been noticed, because the checkasm test erroneously
only checked half of the output (for 8 bit functions), and
apparently none of the samples as part of "fate-hevc" seem to
trigger this specific function.

Signed-off-by: J. Dekker <jdek@itanimul.li>
This commit is contained in:
Martin Storsjö 2024-03-12 15:12:26 +02:00 committed by J. Dekker
parent 2129d66a66
commit 0c5da7be59
1 changed files with 9 additions and 5 deletions
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14
libavcodec/aarch64/hevcdsp_epel_neon.S
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@ -1572,6 +1572,7 @@ function ff_hevc_put_hevc_epel_h48_8_neon_i8mm, export=1
xtn2 v22.8h, v26.4s
xtn v23.4h, v23.4s
xtn2 v23.8h, v27.4s
add x7, x0, #64
st4 {v20.8h, v21.8h, v22.8h, v23.8h}, [x0], x10
ext v4.16b, v2.16b, v3.16b, #1
ext v5.16b, v2.16b, v3.16b, #2
@ -1584,11 +1585,14 @@ function ff_hevc_put_hevc_epel_h48_8_neon_i8mm, export=1
usdot v21.4s, v4.16b, v30.16b
usdot v22.4s, v5.16b, v30.16b
usdot v23.4s, v6.16b, v30.16b
xtn v20.4h, v20.4s
xtn2 v20.8h, v22.4s
xtn v21.4h, v21.4s
xtn2 v21.8h, v23.4s
add x7, x0, #64
zip1 v24.4s, v20.4s, v22.4s
zip2 v25.4s, v20.4s, v22.4s
zip1 v26.4s, v21.4s, v23.4s
zip2 v27.4s, v21.4s, v23.4s
xtn v20.4h, v24.4s
xtn2 v20.8h, v25.4s
xtn v21.4h, v26.4s
xtn2 v21.8h, v27.4s
st2 {v20.8h, v21.8h}, [x7]
b.ne 1b
ret