[FFmpeg-cvslog] avcodec/x86/audiodsp_init: Remove obsolete MMX(EXT) functions

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Tue Jun  7 01:22:52 2022 +0200| [3d716d38abdae1982e84e30becb57458244656bd] | committer: Andreas Rheinhardt

avcodec/x86/audiodsp_init: Remove obsolete MMX(EXT) functions

x64 always has MMX, MMXEXT, SSE and SSE2 and this means
that some functions for MMX, MMXEXT and 3dnow are always
overridden by other functions (unless one e.g. explicitly
disables SSE2) for x64. So given that the only systems that
benefit from these functions are truely ancient 32bit x86s
they are removed.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3d716d38abdae1982e84e30becb57458244656bd
---

 libavcodec/x86/audiodsp.asm    | 13 +------------
 libavcodec/x86/audiodsp_init.c | 10 ----------
 2 files changed, 1 insertion(+), 22 deletions(-)

diff --git a/libavcodec/x86/audiodsp.asm b/libavcodec/x86/audiodsp.asm
index de395e5fa8..b604b0443c 100644
--- a/libavcodec/x86/audiodsp.asm
+++ b/libavcodec/x86/audiodsp.asm
@@ -23,8 +23,8 @@
 
 SECTION .text
 
-%macro SCALARPRODUCT 0
 ; int ff_scalarproduct_int16(int16_t *v1, int16_t *v2, int order)
+INIT_XMM sse2
 cglobal scalarproduct_int16, 3,3,3, v1, v2, order
     add orderd, orderd
     add v1q, orderq
@@ -42,16 +42,7 @@ cglobal scalarproduct_int16, 3,3,3, v1, v2, order
     jl .loop
     HADDD   m2, m0
     movd   eax, m2
-%if mmsize == 8
-    emms
-%endif
     RET
-%endmacro
-
-INIT_MMX mmxext
-SCALARPRODUCT
-INIT_XMM sse2
-SCALARPRODUCT
 
 
 ;-----------------------------------------------------------------------------
@@ -117,8 +108,6 @@ cglobal vector_clip_int32%5, 5,5,%1, dst, src, min, max, len
     REP_RET
 %endmacro
 
-INIT_MMX mmx
-VECTOR_CLIP_INT32 0, 1, 0, 0
 INIT_XMM sse2
 VECTOR_CLIP_INT32 6, 1, 0, 0, _int
 VECTOR_CLIP_INT32 6, 2, 0, 1
diff --git a/libavcodec/x86/audiodsp_init.c b/libavcodec/x86/audiodsp_init.c
index 98e296c264..aa5e43e570 100644
--- a/libavcodec/x86/audiodsp_init.c
+++ b/libavcodec/x86/audiodsp_init.c
@@ -24,13 +24,9 @@
 #include "libavutil/x86/cpu.h"
 #include "libavcodec/audiodsp.h"
 
-int32_t ff_scalarproduct_int16_mmxext(const int16_t *v1, const int16_t *v2,
-                                      int order);
 int32_t ff_scalarproduct_int16_sse2(const int16_t *v1, const int16_t *v2,
                                     int order);
 
-void ff_vector_clip_int32_mmx(int32_t *dst, const int32_t *src,
-                              int32_t min, int32_t max, unsigned int len);
 void ff_vector_clip_int32_sse2(int32_t *dst, const int32_t *src,
                                int32_t min, int32_t max, unsigned int len);
 void ff_vector_clip_int32_int_sse2(int32_t *dst, const int32_t *src,
@@ -44,12 +40,6 @@ av_cold void ff_audiodsp_init_x86(AudioDSPContext *c)
 {
     int cpu_flags = av_get_cpu_flags();
 
-    if (EXTERNAL_MMX(cpu_flags))
-        c->vector_clip_int32 = ff_vector_clip_int32_mmx;
-
-    if (EXTERNAL_MMXEXT(cpu_flags))
-        c->scalarproduct_int16 = ff_scalarproduct_int16_mmxext;
-
     if (EXTERNAL_SSE(cpu_flags))
         c->vector_clipf = ff_vector_clipf_sse;