[FFmpeg-cvslog] ARM: workaround for bug in GNU assembler

Mans Rullgard git at videolan.org
Wed Jul 6 01:37:08 CEST 2011


ffmpeg | branch: master | Mans Rullgard <mans at mansr.com> | Tue Jul  5 18:29:35 2011 +0100| [fce1e43410bdc032c4cf2b1c66166a9ed99cc8f1] | committer: Mans Rullgard

ARM: workaround for bug in GNU assembler

Some versions of the GNU assembler do not handle 64-bit
immediate operands containing arithmetic.  Writing the
value out in full works correctly.

Signed-off-by: Mans Rullgard <mans at mansr.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=fce1e43410bdc032c4cf2b1c66166a9ed99cc8f1
---

 libavcodec/arm/fft_fixed_neon.S |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libavcodec/arm/fft_fixed_neon.S b/libavcodec/arm/fft_fixed_neon.S
index 2cfd817..0508088 100644
--- a/libavcodec/arm/fft_fixed_neon.S
+++ b/libavcodec/arm/fft_fixed_neon.S
@@ -56,7 +56,7 @@
         vhsub.s16       \r0, \d0, \d1           @ t3, t4, t8, t7
         vhsub.s16       \r1, \d1, \d0
         vhadd.s16       \d0, \d0, \d1           @ t1, t2, t6, t5
-        vmov.i64        \d1, #0xffff<<32
+        vmov.i64        \d1, #0xffff00000000
         vbit            \r0, \r1, \d1
         vrev64.16       \r1, \r0                @ t7, t8, t4, t3
         vtrn.32         \r0, \r1                @ t3, t4, t7, t8



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