Tag:
Branch:
Tree:
1f721beeff
master
oldabi
release/0.10
release/0.11
release/0.5
release/0.6
release/0.7
release/0.8
release/0.9
release/1.0
release/1.1
release/1.2
release/2.0
release/2.1
release/2.2
release/2.3
release/2.4
release/2.5
release/2.6
release/2.7
release/2.8
release/3.0
release/3.1
release/3.2
release/3.3
release/3.4
release/4.0
release/4.1
release/4.2
release/4.3
release/4.4
release/5.0
release/5.1
release/6.0
release/6.1
release/7.0
release/7.1
N
ffmpeg-0.6.3
n0.10
n0.10.1
n0.10.10
n0.10.11
n0.10.12
n0.10.13
n0.10.14
n0.10.15
n0.10.16
n0.10.2
n0.10.3
n0.10.4
n0.10.5
n0.10.6
n0.10.7
n0.10.8
n0.10.9
n0.11
n0.11-dev
n0.11.1
n0.11.2
n0.11.3
n0.11.4
n0.11.5
n0.12-dev
n0.5.10
n0.5.11
n0.5.12
n0.5.13
n0.5.14
n0.5.15
n0.5.5
n0.5.6
n0.5.7
n0.5.8
n0.5.9
n0.6.4
n0.6.5
n0.6.6
n0.6.7
n0.7.1
n0.7.10
n0.7.11
n0.7.12
n0.7.13
n0.7.14
n0.7.15
n0.7.16
n0.7.17
n0.7.2
n0.7.3
n0.7.4
n0.7.5
n0.7.6
n0.7.7
n0.7.8
n0.7.9
n0.8
n0.8.1
n0.8.10
n0.8.11
n0.8.12
n0.8.13
n0.8.14
n0.8.15
n0.8.2
n0.8.3
n0.8.4
n0.8.5
n0.8.6
n0.8.7
n0.8.8
n0.8.9
n0.9
n0.9.1
n0.9.2
n0.9.3
n0.9.4
n1.0
n1.0.1
n1.0.10
n1.0.2
n1.0.3
n1.0.4
n1.0.5
n1.0.6
n1.0.7
n1.0.8
n1.0.9
n1.1
n1.1-dev
n1.1.1
n1.1.10
n1.1.11
n1.1.12
n1.1.13
n1.1.14
n1.1.15
n1.1.16
n1.1.2
n1.1.3
n1.1.4
n1.1.5
n1.1.6
n1.1.7
n1.1.8
n1.1.9
n1.2
n1.2-dev
n1.2.1
n1.2.10
n1.2.11
n1.2.12
n1.2.2
n1.2.3
n1.2.4
n1.2.5
n1.2.6
n1.2.7
n1.2.8
n1.2.9
n1.3-dev
n2.0
n2.0.1
n2.0.2
n2.0.3
n2.0.4
n2.0.5
n2.0.6
n2.0.7
n2.1
n2.1-dev
n2.1.1
n2.1.2
n2.1.3
n2.1.4
n2.1.5
n2.1.6
n2.1.7
n2.1.8
n2.2
n2.2-dev
n2.2-rc1
n2.2-rc2
n2.2.1
n2.2.10
n2.2.11
n2.2.12
n2.2.13
n2.2.14
n2.2.15
n2.2.16
n2.2.2
n2.2.3
n2.2.4
n2.2.5
n2.2.6
n2.2.7
n2.2.8
n2.2.9
n2.3
n2.3-dev
n2.3.1
n2.3.2
n2.3.3
n2.3.4
n2.3.5
n2.3.6
n2.4
n2.4-dev
n2.4.1
n2.4.10
n2.4.11
n2.4.12
n2.4.13
n2.4.14
n2.4.2
n2.4.3
n2.4.4
n2.4.5
n2.4.6
n2.4.7
n2.4.8
n2.4.9
n2.5
n2.5-dev
n2.5.1
n2.5.10
n2.5.11
n2.5.2
n2.5.3
n2.5.4
n2.5.5
n2.5.6
n2.5.7
n2.5.8
n2.5.9
n2.6
n2.6-dev
n2.6.1
n2.6.2
n2.6.3
n2.6.4
n2.6.5
n2.6.6
n2.6.7
n2.6.8
n2.6.9
n2.7
n2.7-dev
n2.7.1
n2.7.2
n2.7.3
n2.7.4
n2.7.5
n2.7.6
n2.7.7
n2.8
n2.8-dev
n2.8.1
n2.8.10
n2.8.11
n2.8.12
n2.8.13
n2.8.14
n2.8.15
n2.8.16
n2.8.17
n2.8.18
n2.8.19
n2.8.2
n2.8.20
n2.8.21
n2.8.22
n2.8.3
n2.8.4
n2.8.5
n2.8.6
n2.8.7
n2.8.8
n2.8.9
n2.9-dev
n3.0
n3.0.1
n3.0.10
n3.0.11
n3.0.12
n3.0.2
n3.0.3
n3.0.4
n3.0.5
n3.0.6
n3.0.7
n3.0.8
n3.0.9
n3.1
n3.1-dev
n3.1.1
n3.1.10
n3.1.11
n3.1.2
n3.1.3
n3.1.4
n3.1.5
n3.1.6
n3.1.7
n3.1.8
n3.1.9
n3.2
n3.2-dev
n3.2.1
n3.2.10
n3.2.11
n3.2.12
n3.2.13
n3.2.14
n3.2.15
n3.2.16
n3.2.17
n3.2.18
n3.2.19
n3.2.2
n3.2.3
n3.2.4
n3.2.5
n3.2.6
n3.2.7
n3.2.8
n3.2.9
n3.3
n3.3-dev
n3.3.1
n3.3.2
n3.3.3
n3.3.4
n3.3.5
n3.3.6
n3.3.7
n3.3.8
n3.3.9
n3.4
n3.4-dev
n3.4.1
n3.4.10
n3.4.11
n3.4.12
n3.4.13
n3.4.2
n3.4.3
n3.4.4
n3.4.5
n3.4.6
n3.4.7
n3.4.8
n3.4.9
n3.5-dev
n4.0
n4.0.1
n4.0.2
n4.0.3
n4.0.4
n4.0.5
n4.0.6
n4.1
n4.1-dev
n4.1.1
n4.1.10
n4.1.11
n4.1.2
n4.1.3
n4.1.4
n4.1.5
n4.1.6
n4.1.7
n4.1.8
n4.1.9
n4.2
n4.2-dev
n4.2.1
n4.2.10
n4.2.2
n4.2.3
n4.2.4
n4.2.5
n4.2.6
n4.2.7
n4.2.8
n4.2.9
n4.3
n4.3-dev
n4.3.1
n4.3.2
n4.3.3
n4.3.4
n4.3.5
n4.3.6
n4.3.7
n4.3.8
n4.4
n4.4-dev
n4.4.1
n4.4.2
n4.4.3
n4.4.4
n4.4.5
n4.5-dev
n5.0
n5.0.1
n5.0.2
n5.0.3
n5.1
n5.1-dev
n5.1.1
n5.1.2
n5.1.3
n5.1.4
n5.1.5
n5.1.6
n5.2-dev
n6.0
n6.0.1
n6.1
n6.1-dev
n6.1.1
n6.1.2
n6.2-dev
n7.0
n7.0.1
n7.0.2
n7.1
n7.1-dev
n7.2-dev
v0.5
v0.5.1
v0.5.2
v0.5.3
v0.6
v0.6.1
${ noResults }
1 Commits (1f721beeff06f857e121151baa3c8cca2adc18ec)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Rémi Denis-Courmont
|
cec48e3b32 |
riscv: factor out the bswap32 assembler
|
2 years ago |
|
Rémi Denis-Courmont
|
f0ef11ea83 |
lavc/bswapdsp: RISC-V B bswap_buf
Simply taking the Zbb REV8 instruction into use in a simple loop gives some significant savings: bswap_buf_c: 1081.0 bswap_buf_rvb_b: 771.0 But we can also use the 64-bit REV8 as a pseudo-SIMD instruction with just one additional shift, and one fewer load, effectively doubling the bandwidth. Consequently, this patch is useful even if the compile-time target has Zbb enabled for C code: bswap_buf_c: 1081.0 bswap_buf_rvb_b: 341.0 (this patch) On the other hand, this approach fails miserably for bswap16_buf as the ratio of shifts and stores becomes unfavorable compared to naïve C: bswap16_buf_c: 1542.0 bswap16_buf_rvb_b: 1803.7 Unrolling to process 128 bits (4 samples) at a time actually worsens performance ever so slightly: bswap_buf_c: 1081.0 bswap_buf_rvb_b: 408.5 |
3 years ago |