configure: Remove checks for default inline asm features

Remove checks for compiler support of >= 10 assembler operands and
named assembler arguments. Just assume the features are always
available. These features were only missing from obsolete GCC versions
which are not supported any more.

configure

@@ -2283,17 +2283,6 @@ echocheck "assembler support of -pipe option"
 cflag_check -pipe -I. && _pipe="-pipe" && echores "yes" || echores "no"
 
 
-echocheck "compiler support of named assembler arguments"
-_named_asm_args=yes
-def_named_asm_args="#define NAMED_ASM_ARGS 1"
-if test "$cc_vendor" = "gnu" && test "$_cc_major" -lt 3 \
-     -o "$_cc_major" -eq 3 -a "$_cc_minor" = 0 ; then
-  _named_asm_args=no
-  def_named_asm_args="#undef NAMED_ASM_ARGS"
-fi
-echores $_named_asm_args
-
-
 if darwin && test "$cc_vendor" = "gnu" ; then
 echocheck "GCC support of -mstackrealign"
 # GCC 4.2 and some earlier Apple versions support this flag on x86. Since
@@ -2450,22 +2439,6 @@ fi
 echores $_asmalign_pot
 
 
-echocheck "10 assembler operands"
-ten_operands=no
-def_ten_operands='#define HAVE_TEN_OPERANDS 0'
-cat > $TMPC << EOF
-int main(void) {
-    int x=0;
-    __asm__ volatile(
-        ""
-        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
-    );
-    return 0;
-}
-EOF
-cc_check && ten_operands=yes && def_ten_operands='#define HAVE_TEN_OPERANDS 1'
-echores $ten_operands
-
 echocheck "ebx availability"
 ebx_available=no
 def_ebx_available='#define HAVE_EBX_AVAILABLE 0'
@@ -6975,7 +6948,6 @@ $def_iconv
 $def_kstat
 $def_macosx_bundle
 $def_macosx_finder
-$def_named_asm_args
 $def_priority
 $def_quicktime
 $def_restrict_keyword
@@ -7213,7 +7185,6 @@ $def_posix_memalign
 $def_pthreads
 $def_round
 $def_roundf
-$def_ten_operands
 $def_threads
 $def_truncf
 $def_xform_asm

libmpcodecs/vf_yadif.c

@@ -65,7 +65,7 @@ static void store_ref(struct vf_priv_s *p, uint8_t *src[3], int src_stride[3], i
     }
 }
 
-#if HAVE_MMX && defined(NAMED_ASM_ARGS)
+#if HAVE_MMX
 
 #define LOAD4(mem,dst) \
             "movd      "mem", "#dst" \n\t"\
@@ -278,7 +278,7 @@ static void filter_line_mmx2(struct vf_priv_s *p, uint8_t *dst, uint8_t *prev, u
 #undef CHECK2
 #undef FILTER
 
-#endif /* HAVE_MMX && defined(NAMED_ASM_ARGS) */
+#endif /* HAVE_MMX */
 
 static void filter_line_c(struct vf_priv_s *p, uint8_t *dst, uint8_t *prev, uint8_t *cur, uint8_t *next, int w, int refs, int parity){
     int x;
@@ -360,7 +360,7 @@ static void filter(struct vf_priv_s *p, uint8_t *dst[3], int dst_stride[3], int
             }
         }
     }
-#if HAVE_MMX && defined(NAMED_ASM_ARGS)
+#if HAVE_MMX
     if(gCpuCaps.hasMMX2) __asm__ volatile("emms \n\t" : : : "memory");
 #endif
 }
@@ -505,7 +505,7 @@ static int vf_open(vf_instance_t *vf, char *args){
     if (args) sscanf(args, "%d:%d", &vf->priv->mode, &vf->priv->parity);
 
     filter_line = filter_line_c;
-#if HAVE_MMX && defined(NAMED_ASM_ARGS)
+#if HAVE_MMX
     if(gCpuCaps.hasMMX2) filter_line = filter_line_mmx2;
 #endif