simplify ppc64 handling

Originally committed as revision 9355 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -671,6 +671,7 @@ HAVE_LIST="
     memalign
     mlib
     os2
+    ppc64
     sdl
     sdl_video_size
     soundcard_h
@@ -1289,7 +1290,6 @@ enabled needmdynamicnopic && add_cflags -mdynamic-no-pic
 disabled optimize || add_cflags -fomit-frame-pointer
 
 # Add processor-specific flags
-POWERPCMODE="32bits"
 if test $cpu != "generic"; then
     warn_altivec(){
         $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
@@ -1322,12 +1322,12 @@ if test $cpu != "generic"; then
         G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
             add_cflags "-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
             warn_altivec disabled PPC970
-            POWERPCMODE="64bits"
+            enable ppc64
         ;;
         Cell|CELL|cell)
             add_cflags "-mcpu=cell"
             warn_altivec disabled Cell
-            POWERPCMODE="64bits"
+            enable ppc64
         ;;
         # targets that do NOT support conditional mov (cmov)
         i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
@@ -1894,14 +1894,6 @@ echo "SLIBPREF=$SLIBPREF" >> config.mak
 echo "SLIBSUF=\${BUILDSUF}$SLIBSUF" >> config.mak
 echo "EXESUF=\${BUILDSUF}$EXESUF" >> config.mak
 
-case "$arch" in
-    powerpc)
-        if test "$POWERPCMODE" = "64bits"; then
-            echo "#define POWERPC_MODE_64BITS 1" >> $TMPH
-        fi
-        ;;
-esac
-
 if enabled bigendian; then
   echo "WORDS_BIGENDIAN=yes" >> config.mak
   echo "#define WORDS_BIGENDIAN 1" >> $TMPH

libavcodec/ppc/dsputil_ppc.h

@@ -25,7 +25,7 @@
 void powerpc_display_perf_report(void);
 /* the 604* have 2, the G3* have 4, the G4s have 6,
    and the G5 are completely different (they MUST use
-   POWERPC_MODE_64BITS, and let's hope all future 64 bis PPC
+   HAVE_PPC64, and let's hope all future 64 bis PPC
    will use the same PMCs... */
 #define POWERPC_NUM_PMC_ENABLED 6
 /* if you add to the enum below, also add to the perfname array
@@ -68,7 +68,7 @@ enum powerpc_data_index {
 };
 extern unsigned long long perfdata[POWERPC_NUM_PMC_ENABLED][powerpc_perf_total][powerpc_data_total];
 
-#ifndef POWERPC_MODE_64BITS
+#ifndef HAVE_PPC64
 #define POWERP_PMC_DATATYPE unsigned long
 #define POWERPC_GET_PMC1(a) asm volatile("mfspr %0, 937" : "=r" (a))
 #define POWERPC_GET_PMC2(a) asm volatile("mfspr %0, 938" : "=r" (a))
@@ -86,7 +86,7 @@ extern unsigned long long perfdata[POWERPC_NUM_PMC_ENABLED][powerpc_perf_total][
 #define POWERPC_GET_PMC5(a) do {} while (0)
 #define POWERPC_GET_PMC6(a) do {} while (0)
 #endif
-#else /* POWERPC_MODE_64BITS */
+#else /* HAVE_PPC64 */
 #define POWERP_PMC_DATATYPE unsigned long long
 #define POWERPC_GET_PMC1(a) asm volatile("mfspr %0, 771" : "=r" (a))
 #define POWERPC_GET_PMC2(a) asm volatile("mfspr %0, 772" : "=r" (a))
@@ -104,7 +104,7 @@ extern unsigned long long perfdata[POWERPC_NUM_PMC_ENABLED][powerpc_perf_total][
 #define POWERPC_GET_PMC5(a) do {} while (0)
 #define POWERPC_GET_PMC6(a) do {} while (0)
 #endif
-#endif /* POWERPC_MODE_64BITS */
+#endif /* HAVE_PPC64 */
 #define POWERPC_PERF_DECLARE(a, cond)   \
   POWERP_PMC_DATATYPE                   \
     pmc_start[POWERPC_NUM_PMC_ENABLED], \