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ARM: add explicit .arch and .fpu directives to asm.S

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This prevents build errors when compiler and assembler default
targets differ.  Ideally each file would declare the highest
level it requires.  This is however not easily possible as it
complicates assembling pre-armv6t2 code in Thumb-2 mode.

HAVE_NEON is used as indicator for ARMv7-A since no other
symbol exists for this and NEON is only available in this
variant.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-11-15 01:15:52 +00:00
parent 0945eddec0
commit 8ee2b4672f
1 changed files with 16 additions and 0 deletions
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16
libavcodec/arm/asm.S
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@ -34,6 +34,22 @@
# define T @
#endif
#if HAVE_NEON
.arch armv7-a
#elif HAVE_ARMV6T2
.arch armv6t2
#elif HAVE_ARMV6
.arch armv6
#elif HAVE_ARMV5TE
.arch armv5te
#endif
#if HAVE_NEON
.fpu neon
#elif HAVE_ARMVFP
.fpu vfp
#endif
.syntax unified
T .thumb