[FFmpeg-devel] [PATCH 2/2] Fix msa can't be disabled when '--cpu=loongson3a' assigned.

[Shiyou Yin]

>-----Original Message-----
>From: ffmpeg-devel-bounces at ffmpeg.org [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf Of
>Shiyou Yin
>Sent: Thursday, September 3, 2020 2:30 PM
>To: ffmpeg-devel at ffmpeg.org
>Subject: [FFmpeg-devel] [PATCH 2/2] Fix msa can't be disabled when '--cpu=loongson3a' assigned.
>
>There are compiler and runtime check for MSA and MMI.
>Remove the redundant setting of MSA and MMI for cores specified by "--cpu".
>
>Signed-off-by: Shiyou Yin <yinshiyou-hf at loongson.cn>
>---
> configure | 9 ---------
> 1 file changed, 9 deletions(-)
>
>diff --git a/configure b/configure
>index 5640720..7f103fa 100755
>--- a/configure
>+++ b/configure
>@@ -5025,8 +5025,6 @@ elif enabled mips; then
>         disable loongson3
>         disable mipsdsp
>         disable mipsdspr2
>-        disable msa
>-        disable mmi
>
>         cpuflags="-march=$cpu"
>
>@@ -5035,17 +5033,13 @@ elif enabled mips; then
>             mips1|mips3)
>             ;;
>             mips32r2)
>-                enable msa
>                 enable mips32r2
>             ;;
>             mips32r5)
>-                enable msa
>                 enable mips32r2
>                 enable mips32r5
>             ;;
>             mips64r2|mips64r5)
>-                enable msa
>-                enable mmi
>                 enable mips64r2
>                 enable loongson3
>             ;;
>@@ -5062,7 +5056,6 @@ elif enabled mips; then
>                 enable mips32r2
>             ;;
>             p5600)
>-                enable msa
>                 enable mips32r2
>                 enable mips32r5
>                 check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs
>-funroll-loops"
>@@ -5077,7 +5070,6 @@ elif enabled mips; then
>             ;;
>             # Cores from Loongson
>             loongson2e|loongson2f|loongson3*)
>-                enable mmi
>                 enable local_aligned
>                 enable simd_align_16
>                 enable fast_64bit
>@@ -5100,7 +5092,6 @@ elif enabled mips; then
>                 case $cpu in
>                     loongson3*)
>                         enable loongson3
>-                        enable msa
>                         cpuflags="-march=loongson3a -mhard-float $expensive_optimization_flag"
>                     ;;
>                     loongson2e)
>--
>2.1.0
>

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