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Bug 555338 - preprocessor define to tell when rdtsc is available. r=nnethercote.

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--HG--
extra : convert_revision : 673444e26f4810744ff252ee113fd7f0f3d5a7c9
This commit is contained in:
Ignore Bukanov 2010-03-28 15:31:53 -07:00
parent d5ecb23728
commit 3b3376853d
1 changed files with 22 additions and 0 deletions
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22
js/src/nanojit/avmplus.h
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@ -92,6 +92,9 @@ void NanoAssertFail();
#if defined(AVMPLUS_IA32)
#if defined(_MSC_VER)
# define AVMPLUS_HAS_RDTSC 1
__declspec(naked) static inline __int64 rdtsc()
{
__asm
@ -100,24 +103,35 @@ __declspec(naked) static inline __int64 rdtsc()
ret;
}
}
#elif defined(SOLARIS)
# define AVMPLUS_HAS_RDTSC 1
static inline unsigned long long rdtsc(void)
{
unsigned long long int x;
asm volatile (".byte 0x0f, 0x31" : "=A" (x));
return x;
}
#elif defined(__i386__)
# define AVMPLUS_HAS_RDTSC 1
static __inline__ unsigned long long rdtsc(void)
{
unsigned long long int x;
__asm__ volatile (".byte 0x0f, 0x31" : "=A" (x));
return x;
}
#endif /* compilers */
#elif defined(__x86_64__)
# define AVMPLUS_HAS_RDTSC 1
static __inline__ uint64_t rdtsc(void)
{
unsigned hi, lo;
@ -127,6 +141,8 @@ static __inline__ uint64_t rdtsc(void)
#elif defined(_MSC_VER) && defined(_M_AMD64)
# define AVMPLUS_HAS_RDTSC 1
#include <intrin.h>
#pragma intrinsic(__rdtsc)
@ -137,6 +153,8 @@ static inline unsigned __int64 rdtsc(void)
#elif defined(__powerpc__)
# define AVMPLUS_HAS_RDTSC 1
typedef unsigned long long int unsigned long long;
static __inline__ unsigned long long rdtsc(void)
@ -161,6 +179,10 @@ static __inline__ unsigned long long rdtsc(void)
#endif /* architecture */
#ifndef AVMPLUS_HAS_RDTSC
# define AVMPLUS_HAS_RDTSC 0
#endif
struct JSContext;
#ifdef PERFM