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cpu_limits.h (__glibcpp_long_bits): Define.

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* 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
This commit is contained in:
Alan Modra 2002-07-29 23:26:00 +00:00 committed by Alan Modra
parent 4307be72fc
commit bd11db39e8
4 changed files with 21 additions and 43 deletions
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8
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,11 @@
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.

50
libstdc++-v3/config/cpu/powerpc/atomicity.h
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@ -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 */

4
libstdc++-v3/config/cpu/powerpc/cpu_limits.h
View File

@ -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

2
libstdc++-v3/configure.target
View File

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