diff options
| author | Martin Storsjö <martin@martin.st> | 2020-04-19 20:46:15 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2020-04-21 23:41:13 +0300 |
| commit | 9025d5c5ce3d4bbeb793500951ea7773ed293e61 (patch) | |
| tree | 94a99537f55b049966a646b703037992fbbb2193 /libswscale/aarch64/hscale.S | |
| parent | 7f2649bb46e3dde691edfb03aeb42ba4ef183ab8 (diff) | |
swscale: aarch64: Don't clobber callee-saved registers v8-v15
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libswscale/aarch64/hscale.S')
| -rw-r--r-- | libswscale/aarch64/hscale.S | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/libswscale/aarch64/hscale.S b/libswscale/aarch64/hscale.S index ae73014a25..af55ffe2b7 100644 --- a/libswscale/aarch64/hscale.S +++ b/libswscale/aarch64/hscale.S @@ -46,20 +46,20 @@ function ff_hscale_8_to_15_neon, export=1 uxtl v4.8H, v4.8B // unpack part 1 to 16-bit smlal v0.4S, v4.4H, v5.4H // v0 accumulates srcp[filterPos[0] + {0..3}] * filter[{0..3}] smlal2 v0.4S, v4.8H, v5.8H // v0 accumulates srcp[filterPos[0] + {4..7}] * filter[{4..7}] - ld1 {v8.8B}, [x0], #8 // srcp[filterPos[2] + {0..7}] - ld1 {v9.8H}, [x13], #16 // load 8x16-bit at filter+2*filterSize + ld1 {v16.8B}, [x0], #8 // srcp[filterPos[2] + {0..7}] + ld1 {v17.8H}, [x13], #16 // load 8x16-bit at filter+2*filterSize uxtl v6.8H, v6.8B // unpack part 2 to 16-bit smlal v1.4S, v6.4H, v7.4H // v1 accumulates srcp[filterPos[1] + {0..3}] * filter[{0..3}] - uxtl v8.8H, v8.8B // unpack part 3 to 16-bit - smlal v2.4S, v8.4H, v9.4H // v2 accumulates srcp[filterPos[2] + {0..3}] * filter[{0..3}] - smlal2 v2.4S, V8.8H, v9.8H // v2 accumulates srcp[filterPos[2] + {4..7}] * filter[{4..7}] - ld1 {v10.8B}, [x11], #8 // srcp[filterPos[3] + {0..7}] + uxtl v16.8H, v16.8B // unpack part 3 to 16-bit + smlal v2.4S, v16.4H, v17.4H // v2 accumulates srcp[filterPos[2] + {0..3}] * filter[{0..3}] + smlal2 v2.4S, v16.8H, v17.8H // v2 accumulates srcp[filterPos[2] + {4..7}] * filter[{4..7}] + ld1 {v18.8B}, [x11], #8 // srcp[filterPos[3] + {0..7}] smlal2 v1.4S, v6.8H, v7.8H // v1 accumulates srcp[filterPos[1] + {4..7}] * filter[{4..7}] - ld1 {v11.8H}, [x4], #16 // load 8x16-bit at filter+3*filterSize + ld1 {v19.8H}, [x4], #16 // load 8x16-bit at filter+3*filterSize subs w15, w15, #8 // j -= 8: processed 8/filterSize - uxtl v10.8H, v10.8B // unpack part 4 to 16-bit - smlal v3.4S, v10.4H, v11.4H // v3 accumulates srcp[filterPos[3] + {0..3}] * filter[{0..3}] - smlal2 v3.4S, v10.8H, v11.8H // v3 accumulates srcp[filterPos[3] + {4..7}] * filter[{4..7}] + uxtl v18.8H, v18.8B // unpack part 4 to 16-bit + smlal v3.4S, v18.4H, v19.4H // v3 accumulates srcp[filterPos[3] + {0..3}] * filter[{0..3}] + smlal2 v3.4S, v18.8H, v19.8H // v3 accumulates srcp[filterPos[3] + {4..7}] * filter[{4..7}] b.gt 2b // inner loop if filterSize not consumed completely addp v0.4S, v0.4S, v0.4S // part0 horizontal pair adding addp v1.4S, v1.4S, v1.4S // part1 horizontal pair adding |