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| author | Rémi Denis-Courmont <remi@remlab.net> | 2024-07-27 14:55:04 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2024-07-30 18:41:51 +0300 |
| commit | bd0c3edb136fb79a8d99fd0dfc50c15e40a2355b (patch) | |
| tree | 30826c633d18acc03834fa9723d8c72c39aef6cb /libavutil | |
| parent | 5171baa2289322d57aa36df321582719293f231c (diff) | |
| download | ffmpeg-bd0c3edb136fb79a8d99fd0dfc50c15e40a2355b.tar.gz | |
lavu/riscv: count bytes rather than words for bswap32
This removes the dependency on Zba at essentially zero cost.
Diffstat (limited to 'libavutil')
| -rw-r--r-- | libavutil/riscv/bswap_rvb.S | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/libavutil/riscv/bswap_rvb.S b/libavutil/riscv/bswap_rvb.S index 3ff53ccb56..bc07779c44 100644 --- a/libavutil/riscv/bswap_rvb.S +++ b/libavutil/riscv/bswap_rvb.S @@ -20,21 +20,21 @@ #if (__riscv_xlen >= 64) .macro bswap32_rvb out, in, count - andi t0, \count, 4 + andi t0, \count, 1 beqz t0, 1f /* Align input to 64-bit */ lwu t0, (\in) addi \out, \out, 4 rev8 t0, t0 - addi \count, \count, -1 + addi \count, \count, -4 srli t0, t0, __riscv_xlen - 32 addi \in, \in, 4 sw t0, -4(\out) 1: - andi t3, \count, -2 - sh2add \count, \count, \out + andi t3, \count, -8 + add \count, \count, \out beqz t3, 3f - sh2add t3, t3, \out + add t3, t3, \out 2: /* 2 elements (64 bits) at a time on a 64-bit boundary */ ld t0, (\in) addi \out, \out, 8 |