Merge commit 'c7f7bfc9e3a3150ba72bc34366c13fb2210c66ac'

* commit 'c7f7bfc9e3a3150ba72bc34366c13fb2210c66ac':
  Remove all Alpha architecture optimizations

Conflicts:
	libavcodec/alpha/asm.h
	libavcodec/alpha/dsputil_alpha.c
	libavcodec/alpha/dsputil_alpha.h
	libavcodec/alpha/dsputil_alpha_asm.S
	libavcodec/alpha/hpeldsp_alpha.c
	libavcodec/alpha/hpeldsp_alpha.h
	libavcodec/alpha/hpeldsp_alpha_asm.S
	libavcodec/alpha/motion_est_alpha.c
	libavcodec/alpha/motion_est_mvi_asm.S
	libavcodec/alpha/mpegvideo_alpha.c
	libavcodec/alpha/regdef.h
	libavcodec/alpha/simple_idct_alpha.c

We have a qemu based fate alpha client. And various failures
on alpha have previously pointed to issues in generic C code.
Thus IMHO it makes sense to keep alpha code as long as someone
is willing to do the little bit of maintaince it needs

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/avcodec.h

@@ -2589,7 +2589,9 @@ typedef struct AVCodecContext {
 #define FF_IDCT_SIMPLEVIS     18
 #define FF_IDCT_FAAN          20
 #define FF_IDCT_SIMPLENEON    22
+#if FF_API_ARCH_ALPHA
 #define FF_IDCT_SIMPLEALPHA   23
+#endif
 
     /**
      * bits per sample/pixel from the demuxer (needed for huffyuv).

libavcodec/dct-test.c

@@ -61,8 +61,6 @@ void ff_simple_idct_armv5te(int16_t *data);
 void ff_simple_idct_armv6(int16_t *data);
 void ff_simple_idct_neon(int16_t *data);
 
-void ff_simple_idct_axp(int16_t *data);
-
 struct algo {
     const char *name;
     void (*func)(int16_t *block);
@@ -156,10 +154,6 @@ static const struct algo idct_tab[] = {
     { "SIMPLE-NEON",    ff_simple_idct_neon, PARTTRANS_PERM, AV_CPU_FLAG_NEON },
 #endif
 
-#if ARCH_ALPHA
-    { "SIMPLE-ALPHA",   ff_simple_idct_axp,    NO_PERM },
-#endif
-
     { 0 }
 };
 

libavcodec/msmpeg4.c

@@ -240,10 +240,7 @@ int ff_msmpeg4_pred_dc(MpegEncContext *s, int n,
         : "%eax", "%edx"
     );
 #else
-    /* #elif ARCH_ALPHA */
+    /* Divisions are costly everywhere; optimize the most common case. */
-    /* Divisions are extremely costly on Alpha; optimize the most
-       common case. But they are costly everywhere...
-     */
     if (scale == 8) {
         a = (a + (8 >> 1)) / 8;
         b = (b + (8 >> 1)) / 8;

libavcodec/options_table.h

@@ -201,7 +201,9 @@ static const AVOption avcodec_options[] = {
 {"simplearmv5te", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, "idct"},
 {"simplearmv6", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, "idct"},
 {"simpleneon", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, "idct"},
+#if FF_API_ARCH_ALPHA
 {"simplealpha", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEALPHA }, INT_MIN, INT_MAX, V|E|D, "idct"},
+#endif
 {"ipp", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_IPP }, INT_MIN, INT_MAX, V|E|D, "idct"},
 {"xvidmmx", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVIDMMX }, INT_MIN, INT_MAX, V|E|D, "idct"},
 {"faani", "floating point AAN IDCT", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, "idct"},

libavcodec/version.h

@@ -114,5 +114,8 @@
 #ifndef FF_API_CODEC_PKT
 #define FF_API_CODEC_PKT         (LIBAVCODEC_VERSION_MAJOR < 56)
 #endif
+#ifndef FF_API_ARCH_ALPHA
+#define FF_API_ARCH_ALPHA        (LIBAVCODEC_VERSION_MAJOR < 56)
+#endif
 
 #endif /* AVCODEC_VERSION_H */