cpu_limits.h (__glibcpp_long_bits): Define.

	* config/cpu/powerpc/cpu_limits.h (__glibcpp_long_bits): Define.
	* configure.target (cpu_include_dir): Use cpu/powerpc for powerpc64.
	* config/cpu/powerpc/atomicity.h (__always_swap): Remove.
	(__test_and_set): Remove.
	(_STWCX): Define and use.

From-SVN: r55854

libstdc++-v3/ChangeLog

+2002-07-29  Alan Modra  <amodra@bigpond.net.au>
+
+	* config/cpu/powerpc/cpu_limits.h (__glibcpp_long_bits): Define.
+	* configure.target (cpu_include_dir): Use cpu/powerpc for powerpc64.
+	* config/cpu/powerpc/atomicity.h (__always_swap): Remove.
+	(__test_and_set): Remove.
+	(_STWCX): Define and use.
+
 2002-07-26  Phil Edwards  <pme@gcc.gnu.org>
 
 	* libsupc++/new (placement delete):  Remove unused paramater names.

libstdc++-v3/config/cpu/powerpc/atomicity.h

@@ -30,6 +30,12 @@
 #ifndef _BITS_ATOMICITY_H
 #define _BITS_ATOMICITY_H	1
 
+#ifdef __PPC405__
+#define _STWCX "sync \n\tstwcx. "
+#else
+#define _STWCX "stwcx. "
+#endif
+
 typedef int _Atomic_word;
 
 static inline _Atomic_word
@@ -42,7 +48,7 @@ __exchange_and_add (volatile _Atomic_word* __mem, int __val)
 	"0:\t"
 	"lwarx    %0,0,%2 \n\t"
 	"add%I3   %1,%0,%3 \n\t"
-	"stwcx.   %1,0,%2 \n\t"
+	_STWCX "  %1,0,%2 \n\t"
 	"bne-     0b \n\t"
 	"/* End exchange & add */"
 	: "=&b"(__res), "=&r"(__tmp)
@@ -61,7 +67,7 @@ __atomic_add (volatile _Atomic_word *__mem, int __val)
 	"0:\t"
 	"lwarx    %0,0,%1 \n\t"
 	"add%I2   %0,%0,%2 \n\t"
-	"stwcx.   %0,0,%1 \n\t"
+	_STWCX "  %0,0,%1 \n\t"
 	"bne-     0b \n\t"
 	"/* End atomic add */"
 	: "=&b"(__tmp)
@@ -69,44 +75,4 @@ __atomic_add (volatile _Atomic_word *__mem, int __val)
 	: "cr0", "memory");
 }
 
-static inline long
-__attribute__ ((__unused__))
-__always_swap (volatile long *__p, long int __newval)
-{
-  long __res;
-  __asm__ __volatile__ (
-	"/* Inline always swap */\n"
-	"0:\t"
-	"lwarx    %0,0,%1 \n\t"
-	"stwcx.   %2,0,%1 \n\t"
-	"bne-     0b \n\t"
-	"/* End always swap */"
-	: "=&r"(__res)
-	: "r"(__p), "r"(__newval)
-	: "cr0", "memory");
-  return __res;
-}
-
-static inline int
-__attribute__ ((__unused__))
-__test_and_set (volatile long *__p, long int __newval)
-{
-  int __res;
-  __asm__ __volatile__ (
-	"/* Inline test & set */\n"
-	"0:\t"
-	"lwarx    %0,0,%1 \n\t"
-	"cmpwi    %0,0 \n\t"
-	"bne-     1f \n\t"
-	"stwcx.   %2,0,%1 \n\t"
-	"bne-     0b \n"
-	"1:\n\t"
-	"/* End test & set */"
-	: "=&r"(__res)
-	: "r"(__p), "r"(__newval)
-	: "cr0", "memory");
-  return __res;
-}
-
 #endif /* atomicity.h */
-

libstdc++-v3/config/cpu/powerpc/cpu_limits.h

@@ -28,6 +28,10 @@
 #ifndef _GLIBCPP_CPU_LIMITS
 #define _GLIBCPP_CPU_LIMITS 1
 
+#ifdef __powerpc64__
+#define __glibcpp_long_bits 64
+#endif
+
 #ifndef __LONG_DOUBLE_128__
 #define __glibcpp_long_double_bits 64
 #endif

libstdc++-v3/configure.target

@@ -85,7 +85,7 @@ case "${target_cpu}" in
   mmix)
     ATOMICITYH="cpu/generic"
     ;;
-  powerpc | rs6000)
+  powerpc* | rs6000)
     cpu_include_dir="cpu/powerpc"
     ;;
   s390 | s390x)