quiets build warnings about implicit (armv6) function declarations

Change-Id: I896a5ef3e367e5bb92777a60d34003eb3a040997

The obj_int_extract code is no longer worth maintaining. It creates
significant issues when adapting for different build systems and no
longer offers as significant of a performance benefit due to
improvements in intrinsics.

Source files will remain until the various third-party builds are updated.

The neon fast quantizer has been moved to intrinsics. The armv6 version
has been removed because so few remaining targets require it.

Compilers and processors have improved significantly since the
pack_tokens code was written. The assembly is no longer faster than the
C code.

pack_tokens were the only optimizations for the armv5te targets so the targets
will be removed after the test infrastructure has been updated.

BUG=710

Change-Id: Ic785b167cd9f95eeff31c7c76b7b736c07fb30eb

Treats arm64 the same as armv8.

Change-Id: Ia5029f7bbff251d5aa0836bcccdf20fa0a693891

Place after pulling in forward declarations from the codec. This fixes
compilation of the tests under vs9.

Since
10783d4f Adds high bitdepth transform functions and tests
where vp9_idct.h was added to vp9_rtcd.h the tests are pulling in
vp9_systemdependent.h, which under visual studio include intrin.h. With
VS9 these include headers which define helper classes for intel
intrinsics. When including it in the tests (via vp9_rtcd.h) __cplusplus
is defined but vp9_rtcd.h would wrap declarations in 'extern "C" {'
causing a mismatch in linkage which resulted in compilation failure.

Change-Id: I475e50198b71320e8606bc95c9454876d8799ede

If optimizations use more than one cpu feature, allow
specifying them so that '--disable-X' still works

https://code.google.com/p/webm/issues/detail?id=854

Change-Id: I3108ea37b397371a2be84dd5f2380b304db23f18

Gordana Cmiljanovic authored Aug 07, 2014 and James Zern committed Aug 15, 2014

Change-Id: I78e27bf942b4a825543e76be25546b6458bad8b6

When building with runtime cpu detect assume that armv7 targets can be
relied upon to have at least armv6 support. This may allow dead code
detectors to remove some _c functions.

Change-Id: Iaec4414011fcbbdf6f4ed0d90ef4a8fe8af540b5

'auto_help' was added to Getopt::Long in 2.33
this isn't strictly necessary as an unrecognized option (--help) will
issue a warning and then print the usage

Change-Id: Ia757553a4e19d22a8eb70768a8866ab1a76a0eec

Allow selectively building just the intrinsics for armv8

Change-Id: I2f29b2e4508b8b8e5649c2906b3159ad1d4ec477

significantly speeds up file generation.

the goal of this change is to convert rtcd.sh to perl as directly as
possible to allow for simple comparison. future changes can make it more
perl-like.

---
Linux
    [CREATE] vpx_scale_rtcd.h
real    0m0.485s ->    0m0.022s
    [CREATE] vp8_rtcd.h
real    0m4.619s ->    0m0.060s
    [CREATE] vp9_rtcd.h
real    0m10.102s ->    0m0.087s

Windows
    [CREATE] vpx_scale_rtcd.h
real    0m8.360s ->    0m0.080s
    [CREATE] vp8_rtcd.h
real    1m8.083s ->    0m0.160s
    [CREATE] vp9_rtcd.h
real    2m6.489s ->    0m0.233s

Change-Id: Idfb71188206c91237d6a3c3a81dfe00d103f11ee