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| author | Mans Rullgard <mans@mansr.com> | 2011-05-31 21:04:01 +0100 |
|---|---|---|
| committer | Mans Rullgard <mans@mansr.com> | 2011-05-31 22:21:00 +0100 |
| commit | c51695dbf6e05b397ad8ef8e89d27723db5cb9f1 (patch) | |
| tree | f5b35ff28446f2f4b39723bc6e4466f186ee666c /libavcodec/simple_idct.c | |
| parent | 5ac4952a5808cc8cfe01031ca9d4df7d072f453c (diff) | |
| download | ffmpeg-c51695dbf6e05b397ad8ef8e89d27723db5cb9f1.tar.gz | |
ARM: fix MUL64 inline asm for pre-armv6
Prior to ARMv6, the destination registers of the SMULL instruction
must be distinct from the first source register. Marking the
output early-clobber ensures it is allocated unique registers.
This restriction is dropped in ARMv6 and later, so allowing overlap
between input and output registers there might give better code.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/simple_idct.c')
0 files changed, 0 insertions, 0 deletions