[MPlayer-dev-eng] [MPlayer-cvslog] r38194 - trunk/configure

[Alexander Strasser]

On 2020-08-30 18:27 +0300, reimar wrote:
> Author: reimar
> Date: Sun Aug 30 18:27:41 2020
> New Revision: 38194
>
> Log:
> configure: Fix arm CPU extension selection
>
> If runtime cpudetection is off, we need to set all of
> march, mcpu and mfpu.
> Otherwise compiling on e.g. Rasbian will result in
> a build with no NEON support even when the CPU
> supports it.
>
> Modified:
>    trunk/configure
>
> Modified: trunk/configure
> ==============================================================================
> --- trunk/configure	Sat Aug 22 00:13:38 2020	(r38193)
> +++ trunk/configure	Sun Aug 30 18:27:41 2020	(r38194)
> @@ -2478,6 +2478,9 @@ case "$host_arch" in
>    aarch64)
>      arch='aarch64'
>      iproc='aarch64'
> +    if test "$_runtime_cpudetection" = no ; then
> +      cflag_check -march=native -mcpu=native -mfpu=auto && _march="-march=native -mcpu=native -mfpu=auto"
> +    fi
>      ;;
>
>    arm*)
> @@ -2487,6 +2490,9 @@ case "$host_arch" in
>      def_av_fast_unaligned='#define AV_HAVE_FAST_UNALIGNED 1'
>      def_local_aligned='#define HAVE_LOCAL_ALIGNED 1'
>      test $_fast_clz = "auto" && _fast_clz=yes
> +    if test "$_runtime_cpudetection" = no ; then
> +      cflag_check -march=native -mcpu=native -mfpu=auto && _march="-march=native -mcpu=native -mfpu=auto"
> +    fi
>      ;;
>
>    avr32)
> @@ -9416,8 +9422,11 @@ $def_openssl
>  #define CONFIG_VAAPI 0
>
>  #define HAVE_ALIGNED_STACK 1


> +#define HAVE_AS_ARCH_DIRECTIVE 1
>  #define HAVE_AS_DN_DIRECTIVE 1
> +#define HAVE_AS_FPU_DIRECTIVE 1
>  #define HAVE_AS_FUNC 1
> +#define HAVE_AS_OBJECT_ARCH 1

These changes seem a bit underrepresented in the commit message.

Are they necessary for a good and optimized ARM build?


>  #define HAVE_ASM_MOD_Q 1
>  #define HAVE_ATOMICS_GCC 1
>  #define HAVE_COPYSIGN 1


  Alexander