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George Steed e6297afd14 [AArch64] Optimize ScaleARGBRowDown2Linear_NEON 
Replace LD4 with a pair of LD2 instructions to avoid needing an ST2
instruction for storing the result, since ST2 instructions are known to
be slow on some micro-architectures.

Observed reduction in runtimes compared to the existing Neon code:

 Cortex-A55: -23.3%
Cortex-A510: -49.6%
Cortex-A520: -31.1%
 Cortex-A76: -44.5%
Cortex-A715: -45.8%
Cortex-A720: -46.0%
  Cortex-X1: -74.5%
  Cortex-X2: -72.4%
  Cortex-X3: -76.8%
  Cortex-X4: -39.5%

Co-authored-by: Cosmina Dunca <cosmina.dunca@arm.com>
Bug: libyuv:976
Change-Id: Iab9e802d0784d69b7e970dcc8f1f4036985cd2e1
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/5790972
Reviewed-by: Justin Green <greenjustin@google.com>
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
2024-09-16 04:28:25 +00:00
..
compare_common.cc clang-tidy applied 2021-04-01 21:42:47 +00:00
compare_gcc.cc Add volatile for gcc inline to avoid being removed 2024-07-02 01:25:24 +00:00
compare_msa.cc use unix line endings 2018-06-20 23:19:59 +00:00
compare_neon64.cc Add volatile for gcc inline to avoid being removed 2024-07-02 01:25:24 +00:00
compare_neon.cc Add volatile for gcc inline to avoid being removed 2024-07-02 01:25:24 +00:00
compare_win.cc Switch win32 to row_gcc for clangcl. 2021-04-22 19:32:32 +00:00
compare.cc [AArch64] Add Neon implementation of HashDjb2 2024-05-01 19:37:31 +00:00
convert_argb.cc [AArch64] Add SVE2 implementation of RGB24ToARGBRow 2024-07-08 20:12:05 +00:00
convert_from_argb.cc [AArch64] Add I8MM implementation of ARGBToUV444Row 2024-07-16 17:32:52 +00:00
convert_from.cc Change ScalePlane,ScalePlane_16,... to return int 2023-11-03 23:53:24 +00:00
convert_jpeg.cc PlaneScale, UVScale and ARGBScale test 3x and 4x down sample. 2020-10-28 20:41:59 +00:00
convert_to_argb.cc Remove M420 and refactor NV12ToI420 2020-05-26 18:48:00 +00:00
convert_to_i420.cc Fix ConvertToI420 when using YUY2 or UYVY with odd crop_x. 2021-07-19 22:22:22 +00:00
convert.cc Convert16To8Row_AVX512BW using vpmovuswb 2024-08-15 20:13:33 +00:00
cpu_id.cc [AArch64] Enable SME feature detection on Apple Silicon 2024-07-08 16:19:27 +00:00
mjpeg_decoder.cc Add AMXINT8 cpu detect 2024-02-15 21:44:47 +00:00
mjpeg_validate.cc Update to r1732 for more robust jpeg 2019-07-01 22:32:36 +00:00
planar_functions.cc Convert16To8Row_AVX512BW using vpmovuswb 2024-08-15 20:13:33 +00:00
rotate_any.cc [AArch64] Fix rotate by odd sizes 2024-07-15 18:13:31 +00:00
rotate_argb.cc malloc return 1 for failures and assert for internal functions 2023-12-04 22:55:20 +00:00
rotate_common.cc [AArch64] Use full vectors in TransposeWx{8 => 16}_NEON 2024-05-21 07:46:42 +00:00
rotate_gcc.cc Add volatile for gcc inline to avoid being removed 2024-07-02 01:25:24 +00:00
rotate_lsx.cc [AArch64] Use full vectors in TransposeWx{8 => 16}_NEON 2024-05-21 07:46:42 +00:00
rotate_msa.cc cpuid show vector length on ARM and RISCV 2024-07-02 18:10:56 +00:00
rotate_neon64.cc Add volatile for gcc inline to avoid being removed 2024-07-02 01:25:24 +00:00
rotate_neon.cc Add volatile for gcc inline to avoid being removed 2024-07-02 01:25:24 +00:00
rotate_sme.cc [AArch64] Add SME implementation of TransposeUVWxH 2024-07-19 12:15:40 +00:00
rotate_win.cc Switch win32 to row_gcc for clangcl. 2021-04-22 19:32:32 +00:00
rotate.cc Rotate use NULL for C compatability 2024-07-23 18:02:47 +00:00
row_any.cc Convert16To8Row_AVX512BW using vpmovuswb 2024-08-15 20:13:33 +00:00
row_common.cc Fix -Wundef warnings 2024-08-02 17:39:59 +00:00
row_gcc.cc Convert16To8Row_AVX512BW using vpmovuswb 2024-08-15 20:13:33 +00:00
row_lasx.cc Add volatile for gcc inline to avoid being removed 2024-07-02 01:25:24 +00:00
row_lsx.cc [AArch64] Fix SVE/SME vector length printing in cpuid 2024-07-02 19:44:41 +00:00
row_msa.cc Fix Bugs on mips platform V2. 2022-03-01 13:16:31 +00:00
row_neon64.cc Fix -Wmissing-prototypes warnings 2024-08-12 19:08:24 +00:00
row_neon.cc Fix -Wmissing-prototypes warnings 2024-08-12 19:08:24 +00:00
row_rvv.cc Fix -Wmissing-prototypes warnings 2024-08-12 19:08:24 +00:00
row_sve.cc Remove the ' separators in hex integer constants 2024-08-14 20:50:28 +00:00
row_win.cc Fix tidy warning that uint32_t dither4 should not be const 2023-06-02 00:42:02 +00:00
scale_any.cc [AArch64] Unroll ScaleRowDown34_0_Box_NEON 2024-07-19 19:52:01 +00:00
scale_argb.cc [AArch64] Add SVE implementation for I422ToARGBRow 2024-04-27 18:26:11 +00:00
scale_common.cc Fix warnings for missing prototypes 2023-06-30 17:46:56 +00:00
scale_gcc.cc cpuid show vector length on ARM and RISCV 2024-07-02 18:10:56 +00:00
scale_lsx.cc DetilePlane and unittest for NEON 2022-01-31 20:05:55 +00:00
scale_msa.cc Switch to C99 types 2018-01-23 19:16:05 +00:00
scale_neon64.cc [AArch64] Optimize ScaleARGBRowDown2Linear_NEON 2024-09-16 04:28:25 +00:00
scale_neon.cc scale_neon.cc: Fix -Wmissing-prototypes warnings 2024-08-13 03:50:51 +00:00
scale_rgb.cc RGBScale function using 3 steps: RGB24ToARGB, ARGBScale, ARGBToRGB24 2022-03-19 01:44:06 +00:00
scale_rvv.cc Add volatile for gcc inline to avoid being removed 2024-07-02 01:25:24 +00:00
scale_uv.cc Fix -Wunused-parameter warnings in release builds 2024-08-14 20:49:37 +00:00
scale_win.cc Switch win32 to row_gcc for clangcl. 2021-04-22 19:32:32 +00:00
scale.cc ScalePlane crash fix for 3/4 scaling 2024-09-13 01:20:39 +00:00
test.sh Optimze ABGRToI420 for AVX2 2020-06-04 18:24:45 +00:00
video_common.cc Lint cleanup after C99 change CL 2018-01-24 19:16:03 +00:00