From 6869612f5c7d4d2f20f69a5658328a761deadb1c Mon Sep 17 00:00:00 2001 From: Ben Avison Date: Mon, 21 Jul 2014 14:53:06 +0100 Subject: arm: Macroize the test for 'setend' CPU instruction support Signed-off-by: Diego Biurrun --- libavutil/arm/cpu.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'libavutil/arm') diff --git a/libavutil/arm/cpu.h b/libavutil/arm/cpu.h index 52e839c32e..224409afee 100644 --- a/libavutil/arm/cpu.h +++ b/libavutil/arm/cpu.h @@ -30,4 +30,10 @@ #define have_vfpv3(flags) CPUEXT(flags, VFPV3) #define have_neon(flags) CPUEXT(flags, NEON) +/* Some functions use the 'setend' instruction which is deprecated on ARMv8 + * and serializing on some ARMv7 cores. This macro ensures such functions + * are only enabled on ARMv6. */ +#define have_setend(flags) \ + (have_armv6(flags) && !(have_vfpv3(flags) || have_neon(flags))) + #endif /* AVUTIL_ARM_CPU_H */ -- cgit v1.2.3