| e5b0a782fadfadb353260bea7b98ed3e42bd7ab6 |
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05-Oct-2016 |
Martin Storsjo <martin@martin.st> |
armv8: Use neg instead of sub #0, neg as replacement for rsb
When the arm code has been ported to aarch64, occurrances of
the rsb instruction have been replaced according to the
following pattern:
arm:
rsb rB, rA, #X
aarch64:
sub xTMP, xA, #X
neg xB, xTMP
When the immediate constant #X is zero, we can just as well
use a plain neg instruction without any extra subtraction.
Change-Id: I637be20b469d8d4e7fac712e8039c7e3eedb8c54
/external/libavc/common/armv8/ih264_intra_pred_luma_16x16_av8.s
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| 6958350a651e38f4f4062d9bbf17e01a584670b2 |
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05-Oct-2016 |
Martin Storsjo <martin@martin.st> |
armv8: Remove unnecessary sign extensions
After loading a single byte with ldrb and immediately moving
it into a vector register with dup .8b, there's no point in
sign extending it to 64 bit inbetween.
Similarly in the second case, when adding a number of pixels,
there's no need to sign extend between additions, just do the
additions using the 32 bit register names.
Change-Id: Ie37f47b93138643ffd05169a3792bc39967dbea3
/external/libavc/common/armv8/ih264_intra_pred_luma_16x16_av8.s
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| d91f49ad65795b8d3223f1aba481bf3931b291e6 |
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05-Sep-2016 |
Martin Storsjo <martin@martin.st> |
armv8: Add missing sign extension for WORD32 parameters
For WORD32 parameters, the upper half of the parameter
registers is undefined (even though it is zero in most cases).
When easily doable, use the 'w' register names for such
parameters instead of doing the sign extension with a
separate instruction.
This fixes crashes in some configurations, when built with
clang, which can pass nonzero bits in the high half of registers
more aggressively than GCC.
Also fix the parameter/register mappings; use wN register
names where applicable, and fix incorrect parameter
placement. (Some functions still were documented to have
only 4 parameters in registers.)
Change-Id: Icedf6503b064149d1a651ff1c6a76de5c01722ea
/external/libavc/common/armv8/ih264_intra_pred_luma_16x16_av8.s
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| db02f57bdcb3b101ca658e6c6dd1f5437539b06a |
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09-Jun-2015 |
Martin Storsjo <martin@martin.st> |
armv8: Remove redundant NEON element size declarations
When specifying one specific lane of the vector, the number of
lanes don't need to be specified.
The clang built-in assembler doesn't allow the redundant
declarations, while binutils gas work fine with both forms.
Change-Id: I86077ce0774d4594a1295b6860e4944df87dde2f
/external/libavc/common/armv8/ih264_intra_pred_luma_16x16_av8.s
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| cd9e51fc2b6091aa344363ee8a4f881e938ff80c |
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18-Apr-2015 |
Lajos Molnar <lajos@google.com> |
fix file permissions
Change-Id: Ia4f99d5b963acd8d8a1afc2fbdf06b122d898f63
/external/libavc/common/armv8/ih264_intra_pred_luma_16x16_av8.s
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| 8d3d303c7942ced6a987a52db8977d768dc3605f |
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13-Mar-2015 |
Hamsalekha S <hamsalekha.s@ittiam.com> |
Initial version
Change-Id: I7efe9a589cd24edf86e8d086b40c27cbbf8b4017
/external/libavc/common/armv8/ih264_intra_pred_luma_16x16_av8.s
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