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arm: vp9itxfm: Only reload the idct coeffs for the iadst_idct combination

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This avoids reloading them if they haven't been clobbered, if the
first pass also was idct.

This is similar to what was done in the aarch64 version.

This is cherrypicked from libav commit
3c87039a40.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Martin Storsjö 2017-01-10 00:15:14 +02:00 committed by Michael Niedermayer
parent 37cb224e3e
commit ecd343aa1f
1 changed files with 1 additions and 1 deletions
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libavcodec/arm/vp9itxfm_neon.S
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@ -814,7 +814,7 @@ A and r7, sp, #15
mov r3, #\i
bl \txfm1\()16_1d_4x16_pass1_neon
.endr
.ifc \txfm2,idct
.ifc \txfm1\()_\txfm2,iadst_idct
movrel r12, idct_coeffs
vld1.16 {q0-q1}, [r12,:128]
.endif