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authorMans Rullgard <mans@mansr.com>2012-04-27 02:46:14 +0100
committerMans Rullgard <mans@mansr.com>2012-05-01 00:21:30 +0100
commit4c387c7070e24fa1d1c6397492fef9e46f9bf7aa (patch)
treedc06c0e7f772dd5c66da105db71520a46a40f9b0 /libavcodec/mpc7.c
parentc75eca9d37d692dcbd2c80af0f37e33b10ac333b (diff)
downloadffmpeg-4c387c7070e24fa1d1c6397492fef9e46f9bf7aa.tar.gz
ppc: dsputil: do unaligned block accesses correctly
To load unaligned vector data in the usual way, explicit vec_ld() should be used rather than dereferencing a pointer to a vector type. When the VSX extension is enabled, gcc may compile vector pointer dereferences using the VSX lxvw4x instruction instead of the lvx instruction typically used with Altivec/VMX. As the behaviour of these instructions with unaligned addresses differs, it is important that only lvx is used here. Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/mpc7.c')
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