longlong.h [alpha] (count_leading_zeros, [...]): Use builtins instead of inline assembly.

        * longlong.h [alpha] (count_leading_zeros, count_trailing_zeros): Use
        builtins instead of inline assembly.

From-SVN: r62407

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bcb901772b8b9961927678bb5f26d027b5c9ee67..411627d7a706bac086194f092d25332344a52f00 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-02-04  Richard Henderson  <rth@redhat.com>
+
+       * longlong.h [alpha] (count_leading_zeros, count_trailing_zeros): Use
+       builtins instead of inline assembly.
+
 2003-02-04  Falk Hueffner  <falk.hueffner@student.uni-tuebingen.de>
  
        PR c/9376

diff --git a/gcc/longlong.h b/gcc/longlong.h
index c1fee2d25893ca20d72be23bd6bfc267fc1a1c55..ecca2deef2da966f4b46c9fce3ad307e811878e0 100644 (file)
--- a/gcc/longlong.h
+++ b/gcc/longlong.h
@@ -128,30 +128,28 @@ extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
 #define UDIV_TIME 220
 #endif /* LONGLONG_STANDALONE */
 #ifdef __alpha_cix__
-#define count_leading_zeros(COUNT,X) \
-  __asm__("ctlz %1,%0" : "=r"(COUNT) : "r"(X))
-#define count_trailing_zeros(COUNT,X) \
-  __asm__("cttz %1,%0" : "=r"(COUNT) : "r"(X))
+#define count_leading_zeros(COUNT,X)   ((COUNT) = __builtin_clzl (X))
+#define count_trailing_zeros(COUNT,X)  ((COUNT) = __builtin_ctzl (X))
 #define COUNT_LEADING_ZEROS_0 64
 #else
 extern const UQItype __clz_tab[] ATTRIBUTE_HIDDEN;
 #define count_leading_zeros(COUNT,X) \
   do {                                                                 \
     UDItype __xr = (X), __t, __a;                                      \
-    __asm__("cmpbge $31,%1,%0" : "=r"(__t) : "r"(__xr));               \
+    __t = __builtin_alpha_cmpbge (0, __xr);                            \
     __a = __clz_tab[__t ^ 0xff] - 1;                                   \
-    __asm__("extbl %1,%2,%0" : "=r"(__t) : "r"(__xr), "r"(__a));       \
+    __t = __builtin_alpha_extbl (__xr, __a);                           \
     (COUNT) = 64 - (__clz_tab[__t] + __a*8);                           \
   } while (0)
 #define count_trailing_zeros(COUNT,X) \
   do {                                                                 \
     UDItype __xr = (X), __t, __a;                                      \
-    __asm__("cmpbge $31,%1,%0" : "=r"(__t) : "r"(__xr));               \
+    __t = __builtin_alpha_cmpbge (0, __xr);                            \
     __t = ~__t & -~__t;                                                        \
     __a = ((__t & 0xCC) != 0) * 2;                                     \
     __a += ((__t & 0xF0) != 0) * 4;                                    \
     __a += ((__t & 0xAA) != 0);                                                \
-    __asm__("extbl %1,%2,%0" : "=r"(__t) : "r"(__xr), "r"(__a));       \
+    __t = __builtin_alpha_extbl (__xr, __a);                           \
     __a <<= 3;                                                         \
     __t &= -__t;                                                       \
     __a += ((__t & 0xCC) != 0) * 2;                                    \