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authorMans Rullgard <mans@mansr.com>2011-05-31 21:04:01 +0100
committerMans Rullgard <mans@mansr.com>2011-05-31 22:21:00 +0100
commitc51695dbf6e05b397ad8ef8e89d27723db5cb9f1 (patch)
treef5b35ff28446f2f4b39723bc6e4466f186ee666c /tests/md5.sh
parent5ac4952a5808cc8cfe01031ca9d4df7d072f453c (diff)
downloadffmpeg-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>
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