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ARM: check for inline asm 'y' operand modifier support

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The inline asm added in bf5d46d uses the 'y' modifier which
is only supported from gcc 4.5.  This check allows building
with older compilers.

Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard 2011-10-02 23:38:32 +01:00
parent 5674d4b0a3
commit 6308729e68
2 changed files with 4 additions and 1 deletions
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3
configure vendored
View File

@ -1042,6 +1042,7 @@ HAVE_LIST="
alsa_asoundlib_h
altivec_h
arpa_inet_h
asm_mod_y
attribute_may_alias
attribute_packed
bswap
@ -2644,6 +2645,8 @@ EOF
enabled neon && check_asm neon '"vadd.i16 q0, q0, q0"'
enabled vfpv3 && check_asm vfpv3 '"vmov.f32 s0, #1.0"'
check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
enabled_all armv6t2 shared !pic && enable_pic
elif enabled mips; then

2
libavcodec/arm/dca.h
View File

@ -24,7 +24,7 @@
#include <stdint.h>
#include "config.h"
#if HAVE_NEON && HAVE_INLINE_ASM
#if HAVE_NEON && HAVE_INLINE_ASM && HAVE_ASM_MOD_Y
#define int8x8_fmul_int32 int8x8_fmul_int32
static inline void int8x8_fmul_int32(float *dst, const int8_t *src, int scale)