diff options
| author | Martin Storsjö <martin@martin.st> | 2017-05-09 10:25:44 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2017-05-15 09:52:18 +0300 |
| commit | d7320ca3ed10f0d35b3740fa03341161e74275ea (patch) | |
| tree | 399ceab1c0b0f6d92d493ae72dfd1cce22d63ad0 /libavcodec/arm/vc1dsp_init_neon.c | |
| parent | 6ccf76aec73b2cd598bb1e65d126d8a12540c411 (diff) | |
arm: Avoid using .dn register aliases
clang now (in the upcoming 5.0 version) is capable of building our
arm assembly without relying on gas-preprocessor, although clang/LLVM
doesn't support .dn register aliases.
The VC1 MC assembly was only built and used if the chosen assembler
supported the .dn directives though. This was supported as long as
gas-preprocessor was used.
This means that VC1 decoding got a speed regression on clang 5.0,
unless the user manually chose using gas-preprocessor again.
By avoiding using the .dn register aliases, we can build the VC1 MC
assembly with the latest clang version.
Support for the .dn/.qn directives in clang/LLVM isn't actively planned,
see https://bugs.llvm.org/show_bug.cgi?id=18199.
This partially reverts 896a5bff64264f4d01ed98eacc97a67260c1e17e.
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/arm/vc1dsp_init_neon.c')
| -rw-r--r-- | libavcodec/arm/vc1dsp_init_neon.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/libavcodec/arm/vc1dsp_init_neon.c b/libavcodec/arm/vc1dsp_init_neon.c index 08c07c4443..1c065970a7 100644 --- a/libavcodec/arm/vc1dsp_init_neon.c +++ b/libavcodec/arm/vc1dsp_init_neon.c @@ -22,8 +22,6 @@ #include "libavcodec/vc1dsp.h" #include "vc1dsp.h" -#include "config.h" - void ff_vc1_inv_trans_8x8_neon(int16_t *block); void ff_vc1_inv_trans_4x8_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block); void ff_vc1_inv_trans_8x4_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block); @@ -93,7 +91,6 @@ av_cold void ff_vc1dsp_init_neon(VC1DSPContext *dsp) dsp->vc1_inv_trans_4x4_dc = ff_vc1_inv_trans_4x4_dc_neon; dsp->put_vc1_mspel_pixels_tab[ 0] = ff_put_pixels8x8_neon; - if (HAVE_AS_DN_DIRECTIVE) { dsp->put_vc1_mspel_pixels_tab[ 1] = ff_put_vc1_mspel_mc10_neon; dsp->put_vc1_mspel_pixels_tab[ 2] = ff_put_vc1_mspel_mc20_neon; dsp->put_vc1_mspel_pixels_tab[ 3] = ff_put_vc1_mspel_mc30_neon; @@ -109,7 +106,6 @@ av_cold void ff_vc1dsp_init_neon(VC1DSPContext *dsp) dsp->put_vc1_mspel_pixels_tab[13] = ff_put_vc1_mspel_mc13_neon; dsp->put_vc1_mspel_pixels_tab[14] = ff_put_vc1_mspel_mc23_neon; dsp->put_vc1_mspel_pixels_tab[15] = ff_put_vc1_mspel_mc33_neon; - } dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = ff_put_vc1_chroma_mc8_neon; dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = ff_avg_vc1_chroma_mc8_neon; |