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FFmpeg/libavutil/x86

History

Martin Storsjö 7ec2354c38 x86: Remove inline MMX assembly that clobbers the FPU state ... These inline implementations of AV_COPY64, AV_SWAP64 and AV_ZERO64 are known to clobber the FPU state - which has to be restored with the 'emms' instruction afterwards. This was known and signaled with the FF_COPY_SWAP_ZERO_USES_MMX define, which calling code seems to have been supposed to check, in order to call emms_c() after using them. See 0b1972d409, 29c4c0886d and df215e5758 for history on earlier fixes in the same area. However, new code can use these AV_*64() macros without knowing about the need to call emms_c(). Just get rid of these dangerous inline assembly snippets; this doesn't make any difference for 64 bit architectures anyway. Signed-off-by: Martin Storsjö <martin@martin.st>		9 months ago
..
Makefile	x86/tx_float: do not build tx_float_init.c if x86 assembly is disabled	3 years ago
asm.h	asm: FF_-prefix internal macros used in inline assembly	9 years ago
bswap.h	libavutil: x86: Include stdlib.h before using _byteswap_ulong	5 years ago
cpu.c	avutil/cpu: add AVX512 Icelake flag	3 years ago
cpu.h	avutil/cpu: add AVX512 Icelake flag	3 years ago
cpuid.asm	libavutil: include assembly with full path from source root	3 years ago
emms.asm	libavutil: include assembly with full path from source root	3 years ago
fixed_dsp.asm	libavutil: include assembly with full path from source root	3 years ago
fixed_dsp_init.c	lavu/fixed_dsp: add missing av_restrict qualifiers	2 years ago
float_dsp.asm	x86: replace explicit REP_RETs with RETs	2 years ago
float_dsp_init.c	avutil/x86/float_dsp: add fma3 for scalarproduct	2 years ago
imgutils.asm	Merge commit '6be7944ee2ec2f045e6eb9a93237e992c8b20ac4'	8 years ago
imgutils_init.c	Remove unnecessary libavutil/(avutil|common|internal).h inclusions	3 years ago
intmath.h	x86/intmath: add VEX encoded versions of av_clipf() and av_clipd()	3 years ago
intreadwrite.h	x86: Remove inline MMX assembly that clobbers the FPU state	9 months ago
lls.asm	x86: replace explicit REP_RETs with RETs	2 years ago
lls_init.c	Include attributes.h directly	4 years ago
pixelutils.asm	avutil/x86/pixelutils: Empty MMX state in ff_pixelutils_sad_8x8_mmxext	1 year ago
pixelutils.h	…
pixelutils_init.c	avutil/x86/pixelutils: Remove obsolete MMX(EXT) functions	2 years ago
timer.h	Merge commit 'd1a6cb195f610978ba5d2351e60f938f7f261d59'	9 years ago
tx_float.asm	x86/tx_float: enable SIMD for sizes over 131072	9 months ago
tx_float_init.c	x86/tx_init: propely indicate the extended available transform sizes	9 months ago
w64xmmtest.h	all: Add missing header guards	9 years ago
x86inc.asm	x86inc: Add REPX macro to repeat instructions/operations	1 year ago
x86util.asm	avutil/x86util : add macro for loading a 128 bits constants in an xmm or in each part of an ymm in order to simplify avx2 asm func	7 years ago