Compile error with latest neon assembler

[chinshou]

Summary of the bug:
When I try to compile the ffmpeg for android arm 64 architecture with following revision.
SHA-1: bb57b780134f59e3bddfab295e34e88468bbd545

• avutil/hwcontext_vulkan: add missing packed YUV444 format mappings

compiler report following error, there is no compile problem with previous version
SHA-1: 5f4b7bf2b5b675a4a1dfc3b64c1c5dd03d80f278

• avfilter/vf_libvmaf: fix string comparison bug

  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.4, w6
              ^
  /tmp/epel_neon-421430.s:1660:9: note: while in macro instantiation
          EPEL_UNI_W_H_HEADER 4h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/epel_neon-421430.s:1685:9: note: while in macro instantiation
          EPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/epel_neon-421430.s:1716:9: note: while in macro instantiation
          EPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/epel_neon-421430.s:1745:9: note: while in macro instantiation
          EPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/epel_neon-421430.s:1788:9: note: while in macro instantiation
          EPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/epel_neon-421430.s:1834:9: note: while in macro instantiation
          EPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/epel_neon-421430.s:1897:9: note: while in macro instantiation
          EPEL_UNI_W_H_HEADER 8h
          ^
  CC	libavcodec/aarch64/hevcdsp_init_aarch64.o
  CC	libavcodec/aarch64/hpeldsp_init_aarch64.o
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.4, w6
              ^
  /tmp/qpel_neon-2c8c8e.s:2828:9: note: while in macro instantiation
          QPEL_UNI_W_H_HEADER 4h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/qpel_neon-2c8c8e.s:2862:9: note: while in macro instantiation
          QPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/qpel_neon-2c8c8e.s:2901:9: note: while in macro instantiation
          QPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/qpel_neon-2c8c8e.s:2938:9: note: while in macro instantiation
          QPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/qpel_neon-2c8c8e.s:2998:9: note: while in macro instantiation
          QPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/qpel_neon-2c8c8e.s:3060:9: note: while in macro instantiation
          QPEL_UNI_W_H_HEADER 8h
          ^
  <instantiation>:8:13: error: invalid vector kind qualifier
          dup v30.8, w6
              ^
  /tmp/qpel_neon-2c8c8e.s:3147:9: note: while in macro instantiation
          QPEL_UNI_W_H_HEADER 8h
          ^
  make: *** [ffbuild/common.mak:93: libavcodec/aarch64/h26x/epel_neon.o] Error 1
  make: *** Waiting for unfinished jobs....
  make: *** [ffbuild/common.mak:93: libavcodec/aarch64/h26x/qpel_neon.o] Error 1
  
  

[chinshou]

If disable the hevc and vvc decoder (--disable-decoder=hevc --disable-decoder=vvc), it will compile without problem.

[chinshou]

It seems gnu assembler version problem. I previously used NDK r19c to compile the ffmpeg and it will report error. After I switch to NDK r20b the error disappeared. So please close this ticket.

best regards