X-Git-Url: http://git.nguyen.vg/gitweb/?p=SXSI%2Flibbp.git;a=blobdiff_plain;f=bp-utils.h;h=2397d6f662f0def0ef58a9422b18dda49684419f;hp=21aa7d3f31127cdfc4f6ba8a2ac079ef3f0754fa;hb=HEAD;hpb=6d6af09ca53949cbcabb1677c63a50b2371225ff

diff --git a/bp-utils.h b/bp-utils.h
index 21aa7d3..2397d6f 100644
--- a/bp-utils.h
+++ b/bp-utils.h
@@ -18,20 +18,20 @@ extern "C" {
 #define RRR (1<<logRRR)
 
 
-
-
-
 #include <stdlib.h>
 
-
+#ifdef __GNUC__
+#define UNUSED __attribute__((unused))
+#else
+#define UNUSED
+#endif
 
 #ifdef HAS_NATIVE_POPCOUNT
-static inline unsigned int popcount(unsigned int n){
-  asm ("popcnt %1, %0" : "=r" (n) : "0" (n));
-  return n;
+static inline UNUSED unsigned int popcount(unsigned int n){
+  return __builtin_popcount(n);
 }
 
-static inline unsigned int popcount8(unsigned int n) {
+static inline UNUSED unsigned int popcount8(unsigned int n) {
   return popcount(n & 0xff);
 }
 
@@ -40,12 +40,12 @@ static inline unsigned int popcount8(unsigned int n) {
 
 extern unsigned char popCount[256];
 
-static unsigned int popcount8(unsigned int x)
+static UNUSED unsigned int popcount8(unsigned int x)
 {
   return (unsigned int) popCount[x & 0xff];
 }
 
-static unsigned int popcount(unsigned int x)
+static UNUSED unsigned int popcount(unsigned int x)
 {
   return popcount8(x) +
     popcount8((x >> 8)) +
@@ -55,7 +55,7 @@ static unsigned int popcount(unsigned int x)
 
 
 #else
-static unsigned int popcount8(unsigned int x)
+static UNUSED unsigned int popcount8(unsigned int x)
 {
   unsigned int r;
   r = x;
@@ -65,7 +65,7 @@ static unsigned int popcount8(unsigned int x)
   return r;
 }
 
-static inline unsigned int popcount(unsigned int x)
+static inline UNUSED unsigned int popcount(unsigned int x)
 {
   unsigned int m1 = 0x55555555;
   unsigned int m2 = 0xc30c30c3;