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release/0.10
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release/0.6
release/0.7
release/0.8
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${ noResults }
4 Commits (54ae270213b5a98f923bfd4506e450b2e764ede2)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Rémi Denis-Courmont
|
f2c30fe15a |
lavc/riscv: add forward-edge CFI landing pads
|
8 months ago |
sunyuechi
|
7d0673db7e |
lavc/blockdsp: R-V V fill_block
C908: blockdsp.fill_block_tab[0]_c: 549.7 blockdsp.fill_block_tab[0]_rvv_i64: 48.2 blockdsp.fill_block_tab[1]_c: 77.0 blockdsp.fill_block_tab[1]_rvv_i64: 19.7 Signed-off-by: Rémi Denis-Courmont <remi@remlab.net> |
10 months ago |
|
sunyuechi
|
fdebde817c |
lavc/blockdsp: R-V V clear_blocks
C908: blockdsp.clear_blocks_c: 128.2 blockdsp.clear_blocks_rvv_i64: 102.5 Signed-off-by: Rémi Denis-Courmont <remi@remlab.net> |
1 year ago |
|
sunyuechi
|
0748d2bbc7 |
lavc/blockdsp: R-V V clear_block
C908: blockdsp.clear_block_c: 47.2 blockdsp.clear_block_rvv_i64: 28.5 Signed-off-by: Rémi Denis-Courmont <remi@remlab.net> |
1 year ago |
|
Rémi Denis-Courmont
|
cec48e3b32 |
riscv: factor out the bswap32 assembler
|
1 year 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 |
2 years ago |