Files
ffmpeg/libavcodec
Martin Storsjö 5ab138673b aarch64: hevc: Produce plain neon versions of qpel_uni_hv
As the plain neon qpel_h functions process two rows at a time,
we need to allocate storage for h+8 rows instead of h+7.

By allocating storage for h+8 rows, incrementing the stack
pointer won't end up at the right spot in the end. Store the
intended final stack pointer value in a register x14 which we
store on the stack.

AWS Graviton 3:
put_hevc_qpel_uni_hv4_8_c: 384.2
put_hevc_qpel_uni_hv4_8_neon: 127.5
put_hevc_qpel_uni_hv4_8_i8mm: 85.5
put_hevc_qpel_uni_hv6_8_c: 705.5
put_hevc_qpel_uni_hv6_8_neon: 224.5
put_hevc_qpel_uni_hv6_8_i8mm: 176.2
put_hevc_qpel_uni_hv8_8_c: 1136.5
put_hevc_qpel_uni_hv8_8_neon: 216.5
put_hevc_qpel_uni_hv8_8_i8mm: 214.0
put_hevc_qpel_uni_hv12_8_c: 2259.5
put_hevc_qpel_uni_hv12_8_neon: 498.5
put_hevc_qpel_uni_hv12_8_i8mm: 410.7
put_hevc_qpel_uni_hv16_8_c: 3824.7
put_hevc_qpel_uni_hv16_8_neon: 670.0
put_hevc_qpel_uni_hv16_8_i8mm: 603.7
put_hevc_qpel_uni_hv24_8_c: 8113.5
put_hevc_qpel_uni_hv24_8_neon: 1474.7
put_hevc_qpel_uni_hv24_8_i8mm: 1351.5
put_hevc_qpel_uni_hv32_8_c: 14744.5
put_hevc_qpel_uni_hv32_8_neon: 2599.7
put_hevc_qpel_uni_hv32_8_i8mm: 2266.0
put_hevc_qpel_uni_hv48_8_c: 32800.0
put_hevc_qpel_uni_hv48_8_neon: 5650.0
put_hevc_qpel_uni_hv48_8_i8mm: 5011.7
put_hevc_qpel_uni_hv64_8_c: 57856.2
put_hevc_qpel_uni_hv64_8_neon: 9863.5
put_hevc_qpel_uni_hv64_8_i8mm: 8767.7

Signed-off-by: Martin Storsjö <martin@martin.st>
2024-03-26 09:05:55 +02:00
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