Set HAVE_FAST_CLZ according to CPU type.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@30372 b3059339-0415-0410-9bf9-f77b7e298cf2

configure

@@ -519,6 +519,7 @@ _sse2=auto
 _ssse3=auto
 _cmov=auto
 _fast_cmov=auto
+_fast_clz=auto
 _armv5te=auto
 _armv6=auto
 _armv6t2=auto
@@ -1333,6 +1334,8 @@ for ac_option do
   --disable-cmov) _cmov=no ;;
   --enable-fast-cmov) _fast_cmov=yes ;;
   --disable-fast-cmov) _fast_cmov=no ;;
+  --enable-fast-clz) _fast_clz=yes ;;
+  --disable-fast-clz) _fast_clz=no ;;
   --enable-altivec) _altivec=yes ;;
   --disable-altivec) _altivec=no ;;
   --enable-armv5te) _armv5te=yes ;;
@@ -1818,7 +1821,9 @@ case "$host_arch" in
         proc=k8
         ;;
 
-    *) proc=amdfam10 iproc=686 ;;
+    *) proc=amdfam10 iproc=686
+        test $_fast_clz = "auto" && _fast_clz=yes
+        ;;
     esac
     ;;
   GenuineIntel)
@@ -1844,6 +1849,7 @@ case "$host_arch" in
         else
             proc=i686
         fi
+        test $_fast_clz = "auto" && _fast_clz=yes
         ;;
     15) iproc=686
         # A nocona in 32-bit mode has no more capabilities than a prescott.
@@ -1851,6 +1857,7 @@ case "$host_arch" in
             proc=prescott
         else
             proc=pentium4
+            test $_fast_clz = "auto" && _fast_clz=yes
         fi
         test $_fast_cmov = "auto" && _fast_cmov=no
         ;;
@@ -1889,6 +1896,7 @@ case "$host_arch" in
   *)
     proc=i586 iproc=586 ;;
   esac
+  test $_fast_clz = "auto" && _fast_clz=no
   fi # test "$_runtime_cpudetection" = no
 
 
@@ -2000,6 +2008,7 @@ EOF
     else
         _fast_cmov="no"
     fi
+    test $_fast_clz = "auto" && _fast_clz=yes
 
     echores "$proc"
     ;;
@@ -2029,7 +2038,9 @@ EOF
       case "$pvendor" in
       AuthenticAMD)
         case "$pfamily" in
-        15) proc=k8;;
+        15) proc=k8
+          test $_fast_clz = "auto" && _fast_clz=no
+          ;;
         *) proc=amdfam10;;
         esac
         ;;
@@ -2041,6 +2052,7 @@ EOF
           # have the same capabilities as a nocona.
           proc=nocona
           test $_fast_cmov = "auto" && _fast_cmov=no
+          test $_fast_clz = "auto" && _fast_clz=no
           ;;
         esac
         ;;
@@ -2098,6 +2110,7 @@ EOF
 
     _optimizing="$proc"
     test $_fast_cmov = "auto" && _fast_cmov=yes
+    test $_fast_clz = "auto" && _fast_clz=yes
 
     echores "$proc"
     ;;
@@ -2141,6 +2154,7 @@ EOF
     _target_arch='ARCH_AVR32 = yes'
     def_fast_unaligned='#define HAVE_FAST_UNALIGNED 1'
     iproc='avr32'
+    test $_fast_clz = "auto" && _fast_clz=yes
     ;;
 
   sh|sh4)
@@ -2261,6 +2275,8 @@ EOF
         echores "none"
     fi
 
+    test $_fast_clz = "auto" && _fast_clz=yes
+
     ;;
 
   alpha*)
@@ -2301,6 +2317,8 @@ EOF
     _mcpu="-mcpu=$proc"
     echores "$proc"
 
+    test $_fast_clz = "auto" && _fast_clz=yes
+
     _optimizing="$proc"
     ;;
 
@@ -2327,6 +2345,8 @@ EOF
         echores "$proc"
     fi
 
+    test $_fast_clz = "auto" && _fast_clz=yes
+
     ;;
 
   hppa)
@@ -2761,6 +2781,8 @@ EOF
   fi
   echores "$_armv5te"
 
+  test $_armv5te = "yes" && test $_fast_clz = "auto" && _fast_clz=yes
+
   echocheck "ARMv6 (SIMD instructions)"
   if test $_armv6 = "auto" ; then
     cat > $TMPC << EOF
@@ -2812,7 +2834,7 @@ EOF
   echores "$_iwmmxt"
 fi
 
-_cpuexts_all='ALTIVEC MMX MMX2 AMD3DNOW AMD3DNOWEXT SSE SSE2 SSSE3 FAST_CMOV CMOV PLD ARMV5TE ARMV6 ARMV6T2 ARMVFP NEON IWMMXT MMI VIS MVI'
+_cpuexts_all='ALTIVEC MMX MMX2 AMD3DNOW AMD3DNOWEXT SSE SSE2 SSSE3 FAST_CMOV CMOV FAST_CLZ PLD ARMV5TE ARMV6 ARMV6T2 ARMVFP NEON IWMMXT MMI VIS MVI'
 test "$_altivec"   = yes && _cpuexts="ALTIVEC $_cpuexts"
 test "$_mmx"       = yes && _cpuexts="MMX $_cpuexts"
 test "$_mmxext"    = yes && _cpuexts="MMX2 $_cpuexts"
@@ -2823,6 +2845,7 @@ test "$_sse2"      = yes && _cpuexts="SSE2 $_cpuexts"
 test "$_ssse3"     = yes && _cpuexts="SSSE3 $_cpuexts"
 test "$_cmov"      = yes && _cpuexts="CMOV $_cpuexts"
 test "$_fast_cmov" = yes && _cpuexts="FAST_CMOV $_cpuexts"
+test "$_fast_clz"  = yes && _cpuexts="FAST_CLZ $_cpuexts"
 test "$pld"        = yes && _cpuexts="PLD $_cpuexts"
 test "$_armv5te"   = yes && _cpuexts="ARMV5TE $_cpuexts"
 test "$_armv6"     = yes && _cpuexts="ARMV6 $_cpuexts"
@@ -9141,7 +9164,6 @@ $def_yasm
 #endif
 
 #define HAVE_ATTRIBUTE_PACKED 1
-#define HAVE_FAST_CLZ 0
 #define HAVE_GETHRTIME 0
 #define HAVE_INLINE_ASM 1
 #define HAVE_LDBRX 0