[FFmpeg-devel] [PATCH v2 1/3] configure: Add support for loongarch.

[陈昊]

LGTM

"yinshiyou-hf at loongson.cn" <yinshiyou-hf at loongson.cn>写道：
> For la464 cpu: ./configure --cpu=la464
> 
> With cross-compiler:
> ./configure --cross-prefix=loongarch64-linux-gnu- \
>             --enable-cross-compile --arch=loongarch64 \
>             --target-os=linux --cpu=la464
> ---
>  Changelog |  1 +
>  configure | 23 +++++++++++++++++++++++
>  2 files changed, 24 insertions(+)
> 
> diff --git a/Changelog b/Changelog
> index 56faa7f9f5..648079ab64 100644
> --- a/Changelog
> +++ b/Changelog
> @@ -35,6 +35,7 @@ version <next>:
>  - bitpacked encoder
>  - VideoToolbox VP9 hwaccel
>  - VideoToolbox ProRes hwaccel
> +- support loongarch.
>  
>  
>  version 4.4:
> diff --git a/configure b/configure
> index d8b5be8bbb..aa94c39419 100755
> --- a/configure
> +++ b/configure
> @@ -2032,6 +2032,9 @@ ARCH_LIST="
>      avr32_uc
>      bfin
>      ia64
> +    loongarch
> +    loongarch32
> +    loongarch64
>      m68k
>      mips
>      mips64
> @@ -4959,6 +4962,9 @@ case "$arch" in
>      arm*|iPad*|iPhone*)
>          arch="arm"
>      ;;
> +    loongarch*)
> +        arch="loongarch"
> +    ;;
>      mips*|IP*)
>          case "$arch" in
>          *el)
> @@ -5106,6 +5112,18 @@ elif enabled bfin; then
>  
>      cpuflags="-mcpu=$cpu"
>  
> +elif enabled loongarch; then
> +
> +    enable local_aligned
> +    enable simd_align_32
> +    enable fast_64bit
> +    enable fast_clz
> +    enable fast_unaligned
> +    case $cpu in
> +        la464)
> +            cpuflags="-march=$cpu"
> +        ;;
> +    esac
>  elif enabled mips; then
>  
>      if [ "$cpu" != "generic" ]; then
> @@ -5362,6 +5380,11 @@ case "$arch" in
>      aarch64|alpha|ia64)
>          enabled shared && enable_weak pic
>      ;;
> +    loongarch)
> +        check_64bit loongarch32 loongarch64
> +        enabled loongarch64 && disable loongarch32
> +        enabled shared && enable_weak pic
> +    ;;
>      mips)
>          check_64bit mips mips64 '_MIPS_SIM > 1'
>          enabled shared && enable_weak pic
> -- 
> 2.20.1
> 
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