From x86inc:
> On AMD cpus <=K10, an ordinary ret is slow if it immediately follows either
> a branch or a branch target. So switch to a 2-byte form of ret in that case.
> We can automatically detect "follows a branch", but not a branch target.
> (SSSE3 is a sufficient condition to know that your cpu doesn't have this problem.)
x86inc can automatically determine whether to use REP_RET rather than
REP in most of these cases, so impact is minimal. Additionally, a few
REP_RETs were used unnecessary, despite the return being nowhere near a
branch.
The only CPUs affected were AMD K10s, made between 2007 and 2011, 16
years ago and 12 years ago, respectively.
In the future, everyone involved with x86inc should consider dropping
REP_RETs altogether.
x64 always has MMX, MMXEXT, SSE and SSE2 and this means
that some functions for MMX, MMXEXT, SSE and 3dnow are always
overridden by other functions (unless one e.g. explicitly
disables SSE2). So given that the only systems which benefit
from ff_vector_fmul_window_3dnowext are truely ancient 32bit
AMD x86s it is removed.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Otherwise nasm writes the full host-specific paths into .o
output, which breaks binary reproducibility.
Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The function documentation explicitly mentions it needs to be a multiple of 4.
Reviewed-by: Christophe Gisquet <christophe.gisquet@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>
It was lost during the port.
Should fix fate on 3dnowext machines.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Use the xm# and ym# aliases as they remain in sync with m# after a SWAP.
No actual changes to the assembly.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
vector_fmul and vector_fmac_scalar are guaranteed that they can process in
batch of 16 elements, but their SSE versions only does 8 at a time.
Therefore, unroll them a bit.
299 to 261c for 256 elements in vector_fmac_scalar on Arrandale/Win64.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Now, nellymoserenc and aacenc no longer depends on dsputil. Independent
of this patch, wmaprodec also does not depend on dsputil, so I removed
it from there also.
* qatar/master:
golomb: use unsigned arithmetics in svq3_get_ue_golomb()
x86: float_dsp: fix loading of the len parameter on x86-32
takdec: fix initialisation of LOCAL_ALIGNED array
takdec: fix initialisation of LOCAL_ALIGNED array
Conflicts:
libavcodec/rv30.c
libavcodec/svq3.c
libavcodec/takdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9d5c62ba5b586c80af508b5914934b1c439f6652':
lavu/opt: do not filter out the initial sign character except for flags
eval: treat dB as decibels instead of decibytes
float_dsp: add vector_dmul_scalar() to multiply a vector of doubles
Conflicts:
libavutil/eval.c
tests/ref/fate/eval
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '3c370f5abc55739a261534b9f9bdc739cedbbbb9':
riff: only warn on a bad INFO chunk code size instead of failing
configure: Add separate list for libraries and use where appropriate
x86: float_dsp: add SSE version of vector_fmul_scalar()
Conflicts:
configure
libavformat/riff.c
libavutil/x86/float_dsp.asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '6860b4081d046558c44b1b42f22022ea341a2a73':
x86: include x86inc.asm in x86util.asm
cng: Reindent some incorrectly indented lines
cngdec: Allow flushing the decoder
cngdec: Make the dbov variable have the right unit
cngdec: Fix the memset size to cover the full array
cngdec: Update the LPC coefficients after averaging the reflection coefficients
configure: fix print_config() with broke awks
Conflicts:
libavcodec/x86/ac3dsp.asm
libavcodec/x86/dct32.asm
libavcodec/x86/deinterlace.asm
libavcodec/x86/dsputil.asm
libavcodec/x86/dsputilenc.asm
libavcodec/x86/fft.asm
libavcodec/x86/fmtconvert.asm
libavcodec/x86/h264_chromamc.asm
libavcodec/x86/h264_deblock.asm
libavcodec/x86/h264_deblock_10bit.asm
libavcodec/x86/h264_idct.asm
libavcodec/x86/h264_idct_10bit.asm
libavcodec/x86/h264_intrapred.asm
libavcodec/x86/h264_intrapred_10bit.asm
libavcodec/x86/h264_weight.asm
libavcodec/x86/vc1dsp.asm
libavcodec/x86/vp3dsp.asm
libavcodec/x86/vp56dsp.asm
libavcodec/x86/vp8dsp.asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
mov_chan: Only set the channel_layout if setting it to a nonzero value
mov_chan: Reindent an incorrectly indented line
mp2 muxer: mark as AVFMT_NOTIMESTAMPS.
x86: float_dsp: fix ff_vector_fmac_scalar_avx() on Win64
x86: more specific checks for availability of required assembly capabilities
x86: avcodec: Drop silly "_mmx" suffix from dsputil template names
fate: Drop redundant setting of FUZZ to 1
cavsdsp: set idct permutation independently of dsputil
x86: allow using add_hfyu_median_prediction_cmov on any cpu with cmov
Conflicts:
libavcodec/x86/dsputil_mmx.c
libavformat/mp3enc.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
MSS1 and MSS2: set final pixel format after common stuff has been initialised
MSS2 decoder
configure: handle --disable-asm before check_deps
x86: Split inline and external assembly #ifdefs
configure: x86: Separate inline from standalone assembler capabilities
pktdumper: Use a custom define instead of PATH_MAX for buffers
pktdumper: Use av_strlcpy instead of strncpy
pktdumper: Use sizeof(variable) instead of the direct buffer length
Conflicts:
Changelog
configure
libavcodec/allcodecs.c
libavcodec/avcodec.h
libavcodec/codec_desc.c
libavcodec/dct-test.c
libavcodec/imgconvert.c
libavcodec/mss12.c
libavcodec/version.h
libavfilter/x86/gradfun.c
libswscale/x86/yuv2rgb.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
x86: fix build with nasm 2.08
x86: use nop cpu directives only if supported
x86: fix rNmp macros with nasm
build: add trailing / to yasm/nasm -I flags
x86: use 32-bit source registers with movd instruction
x86: add colons after labels
Conflicts:
Makefile
libavutil/x86/x86inc.asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
proresdsp: port x86 assembly to cpuflags.
lavr: x86: improve non-SSE4 version of S16_TO_S32_SX macro
lavfi: better channel layout negotiation
alac: check for truncated packets
alac: reverse lpc coeff order, simplify filter
lavr: add x86-optimized mixing functions
x86: add support for fmaddps fma4 instruction with abstraction to avx/sse
tscc2: fix typo in array index
build: use COMPILE template for HOSTOBJS
build: do full flag handling for all compiler-type tools
eval: fix printing of NaN in eval fate test.
build: Rename aandct component to more descriptive aandcttables
mpegaudio: bury inline asm under HAVE_INLINE_ASM.
x86inc: automatically insert vzeroupper for YMM functions.
rtmp: Check the buffer length of ping packets
rtmp: Allow having more unknown data at the end of a chunk size packet without failing
rtmp: Prevent reading outside of an allocate buffer when receiving server bandwidth packets
Conflicts:
Makefile
configure
libavcodec/x86/proresdsp.asm
libavutil/eval.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master: (24 commits)
flvdec: remove incomplete, disabled seeking code
mem: add support for _aligned_malloc() as found on Windows
lavc: Extend the documentation for avcodec_init_packet
flvdec: remove incomplete, disabled seeking code
http: replace atoll() with strtoll()
mpegts: remove unused/incomplete/broken seeking code
af_amix: allow float planar sample format as input
af_amix: use AVFloatDSPContext.vector_fmac_scalar()
float_dsp: add x86-optimized functions for vector_fmac_scalar()
float_dsp: Move vector_fmac_scalar() from libavcodec to libavutil
lavr: Add x86-optimized function for flt to s32 conversion
lavr: Add x86-optimized function for flt to s16 conversion
lavr: Add x86-optimized functions for s32 to flt conversion
lavr: Add x86-optimized functions for s32 to s16 conversion
lavr: Add x86-optimized functions for s16 to flt conversion
lavr: Add x86-optimized function for s16 to s32 conversion
rtpenc: Support packetizing iLBC
rtpdec: Add a depacketizer for iLBC
Implement the iLBC storage file format
mov: Support muxing/demuxing iLBC
...
Conflicts:
Changelog
configure
libavcodec/avcodec.h
libavcodec/dsputil.c
libavcodec/version.h
libavformat/movenc.c
libavformat/mpegts.c
libavformat/version.h
libavutil/mem.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Lynne
James Almer
Paul B Mahol
Andreas Rheinhardt
Alexander Kanavin
Christophe Gisquet
Michael Niedermayer
Ronald S. Bultje
Justin Ruggles
Diego Biurrun
Mans Rullgard