[FFmpeg-devel] [PATCH 1/2] avcodec/mips: [loongson] Fixed mmi optimization

Shiyou Yin yinshiyou-hf at loongson.cn
Thu Sep 3 09:29:51 EEST 2020


From: gxw <guxiwei-hf at loongson.cn>

Test case fate-checkasm-h264pred failed in latest community code.
This patch fixed the bug.

Signed-off-by: Shiyou Yin <yinshiyou-hf at loongson.cn>
---
 libavcodec/mips/h264pred_mmi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/libavcodec/mips/h264pred_mmi.c b/libavcodec/mips/h264pred_mmi.c
index f4fe091..0209c2e 100644
--- a/libavcodec/mips/h264pred_mmi.c
+++ b/libavcodec/mips/h264pred_mmi.c
@@ -178,7 +178,9 @@ void ff_pred8x8l_top_dc_8_mmi(uint8_t *src, int has_topleft,
 
         "1:                                                             \n\t"
         "bnez       %[has_topright],            2f                      \n\t"
-        "pinsrh_3   %[ftmp2],   %[ftmp2],       %[ftmp4]                \n\t"
+        "dli        %[tmp0],    0xa4                                    \n\t"
+        "mtc1       %[tmp0],    %[ftmp1]                                \n\t"
+        "pshufh     %[ftmp2],   %[ftmp2],       %[ftmp1]                \n\t"
 
         "2:                                                             \n\t"
         "dli        %[tmp0],    0x02                                    \n\t"
@@ -370,7 +372,9 @@ void ff_pred8x8l_vertical_8_mmi(uint8_t *src, int has_topleft,
 
         "1:                                                             \n\t"
         "bnez       %[has_topright],            2f                      \n\t"
-        "pinsrh_3   %[ftmp11],  %[ftmp11],      %[ftmp9]                \n\t"
+        "dli        %[tmp0],    0xa4                                    \n\t"
+        "mtc1       %[tmp0],    %[ftmp1]                                \n\t"
+        "pshufh     %[ftmp11],  %[ftmp11],      %[ftmp1]                \n\t"
 
         "2:                                                             \n\t"
         "dli        %[tmp0],    0x02                                    \n\t"
-- 
2.1.0



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