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| author | Krzysztof Pyrkosz via ffmpeg-devel <ffmpeg-devel@ffmpeg.org> | 2025-02-25 21:45:56 +0100 |
|---|---|---|
| committer | Lynne <dev@lynne.ee> | 2025-02-28 13:42:54 +0100 |
| commit | 9993a64d7bcd5baa730d1ff95f6ab4d5a49af369 (patch) | |
| tree | de595ec37b84f70d2eb397ff89352452ce8431c6 | |
| parent | bb87d19cd9720631d79e67a5ecca4659ae97734a (diff) | |
| download | ffmpeg-9993a64d7bcd5baa730d1ff95f6ab4d5a49af369.tar.gz | |
avutil/aarch64/tx_float_neon.S: clean up FFT4_X2
| -rw-r--r-- | libavutil/aarch64/tx_float_neon.S | 32 |
1 files changed, 8 insertions, 24 deletions
diff --git a/libavutil/aarch64/tx_float_neon.S b/libavutil/aarch64/tx_float_neon.S index 78e4876d6c..d00b3f9684 100644 --- a/libavutil/aarch64/tx_float_neon.S +++ b/libavutil/aarch64/tx_float_neon.S @@ -119,13 +119,6 @@ endconst .endif .endm -const shuf_4pt_x2, align=4 - .byte 24, 25, 26, 27 // reg2, 3 - .byte 12, 13, 14, 15 // reg1, 4 - .byte 8, 9, 10, 11 // reg1, 3 - .byte 28, 29, 30, 31 // reg2, 4 -endconst - // Identical to FFT4, but does 2 transforms in parallel, with no deinterleaving .macro FFT4_X2 e0, o0, e1, o1, \ t0=v16, t1=v17, t2=v18, t3=v19, t4=v20, t5=v21, t6=v22 @@ -135,18 +128,17 @@ endconst fsub \e0\().4s, \e0\().4s, \o0\().4s // t1234 fsub \e1\().4s, \e1\().4s, \o1\().4s // t1234 - movrel x5, shuf_4pt_x2 - rev64 \t4\().4s, \e0\().4s rev64 \t5\().4s, \e1\().4s - zip2 \o0\().2d, \t0\().2d, \e0\().2d // t3,4 r3,4 - zip2 \o1\().2d, \t2\().2d, \e1\().2d // t3,4 r3,4 + zip2 \o0\().2d, \t0\().2d, \t4\().2d // t3,4 r3,4 + zip2 \o1\().2d, \t2\().2d, \t5\().2d // t3,4 r3,4 - ld1 { \t6\().16b }, [x5] + fneg \t3\().4s, \t4\().4s + fneg \t4\().4s, \t5\().4s - mov \o0\().d[1], \t4\().d[1] - mov \o1\().d[1], \t5\().d[1] + mov \o0\().s[3], \t3\().s[3] + mov \o1\().s[3], \t4\().s[3] zip1 \t1\().2d, \t0\().2d, \e0\().2d // t1,2 r1,2 zip1 \t3\().2d, \t2\().2d, \e1\().2d // t1,2 r1,2 @@ -156,18 +148,10 @@ endconst fsub \t2\().4s, \t3\().4s, \o1\().4s // a34 b32 fadd \t3\().4s, \t3\().4s, \o1\().4s // a12 b14 - // TODO: experiment with movs instead of tables here - tbl \o0\().16b, { \t4\().16b, \t5\().16b }, \t6\().16b // b1234 - tbl \o1\().16b, { \t2\().16b, \t3\().16b }, \t6\().16b // b1234 - zip1 \e0\().2d, \t5\().2d, \t4\().2d // a1234 -// zip2 \o0\().2d, \t5\().2d, \t4\().2d // b1432 + zip2 \o0\().2d, \t5\().2d, \t4\().2d // b1432 zip1 \e1\().2d, \t3\().2d, \t2\().2d // a1234 -// zip2 \o1\().2d, \t3\().2d, \t2\().2d // b1432 -// rev64 \o0\().4s, \o0\().4s // b4123 -// rev64 \o1\().4s, \o1\().4s // b4123 -// ext \o0\().16b, \o0\().16b, \o0\().16b, #4 // b1234 -// ext \o1\().16b, \o1\().16b, \o1\().16b, #4 // b1234 + zip2 \o1\().2d, \t3\().2d, \t2\().2d // b1432 .endm const tab_8pt, align=4 |