ffmpeg | branch: master | Martin Storsjö <mar...@martin.st> | Mon Oct 23 11:27:29 2023 +0300| [f05948ada435d95fed3cc9279cec0ccef8a10a2c] | committer: Martin Storsjö
aarch64: Simplify the linux runtime cpu detection code Skip doing the whole getauxval(AT_HWCAP) if HWCAP_CPUID isn't defined. Signed-off-by: Martin Storsjö <mar...@martin.st> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f05948ada435d95fed3cc9279cec0ccef8a10a2c --- libavutil/aarch64/cpu.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/libavutil/aarch64/cpu.c b/libavutil/aarch64/cpu.c index bd780e8591..2b50c426bc 100644 --- a/libavutil/aarch64/cpu.c +++ b/libavutil/aarch64/cpu.c @@ -30,11 +30,9 @@ static int detect_flags(void) { int flags = 0; - unsigned long hwcap; - - hwcap = getauxval(AT_HWCAP); #if defined(HWCAP_CPUID) + unsigned long hwcap = getauxval(AT_HWCAP); // We can check for DOTPROD and I8MM using HWCAP_ASIMDDP and // HWCAP2_I8MM too, avoiding to read the CPUID registers (which triggers // a trap, handled by the kernel). However the HWCAP_* defines for these @@ -53,8 +51,6 @@ static int detect_flags(void) if (((tmp >> 52) & 0xf) == 0x1) flags |= AV_CPU_FLAG_I8MM; } -#else - (void)hwcap; #endif return flags; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
