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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	…
asm.h	…
bswap.h	…
cpu.c	…
cpu.h	…
cpuid.asm	…
emms.asm	…
fixed_dsp.asm	…
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	…
imgutils_init.c	…
intmath.h	…
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	…
pixelutils.asm	avutil/x86/pixelutils: Empty MMX state in ff_pixelutils_sad_8x8_mmxext	1 year ago
pixelutils.h	…
pixelutils_init.c	…
timer.h	…
tx_float.asm	x86/tx_float: enable SIMD for sizes over 131072	10 months ago
tx_float_init.c	x86/tx_init: propely indicate the extended available transform sizes	9 months ago
w64xmmtest.h	…
x86inc.asm	x86inc: Add REPX macro to repeat instructions/operations	1 year ago
x86util.asm	…