diff options
Diffstat (limited to 'libavutil/arm/cpu.c')
| -rw-r--r-- | libavutil/arm/cpu.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libavutil/arm/cpu.c b/libavutil/arm/cpu.c index f6cf338591..f1683e8d76 100644 --- a/libavutil/arm/cpu.c +++ b/libavutil/arm/cpu.c @@ -128,6 +128,12 @@ int ff_get_cpu_flags_arm(void) trickle down. */ if (flags & (AV_CPU_FLAG_VFPV3 | AV_CPU_FLAG_NEON)) flags |= AV_CPU_FLAG_ARMV6T2; + else + /* Some functions use the 'setend' instruction which is deprecated on ARMv8 + * and serializing on some ARMv7 cores. This ensures such functions + * are only enabled on ARMv6. */ + flags |= AV_CPU_FLAG_SETEND; + if (flags & AV_CPU_FLAG_ARMV6T2) flags |= AV_CPU_FLAG_ARMV6; @@ -143,7 +149,8 @@ int ff_get_cpu_flags_arm(void) AV_CPU_FLAG_ARMV6T2 * HAVE_ARMV6T2 | AV_CPU_FLAG_VFP * HAVE_VFP | AV_CPU_FLAG_VFPV3 * HAVE_VFPV3 | - AV_CPU_FLAG_NEON * HAVE_NEON; + AV_CPU_FLAG_NEON * HAVE_NEON | + AV_CPU_FLAG_SETEND * !(HAVE_NEON | HAVE_VFPV3); } #endif |