gcc_ia32_common.h File Reference

#include "gcc_itsx.h"

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Classes
class	tbb::internal::cpu_ctl_env

Namespaces
	tbb
	The graph class.
	tbb::internal
	Identifiers declared inside namespace internal should never be used directly by client code.

Macros
#define	__TBB_Log2(V)   __TBB_machine_lg(V)
#define	__TBB_Pause(V)   __TBB_machine_pause(V)
#define	__TBB_time_stamp()   __TBB_machine_time_stamp()
#define	__TBB_CPU_CTL_ENV_PRESENT   1

Typedefs
typedef uint64_t	tbb::internal::machine_tsc_t

Functions
template<typename T >
static intptr_t	__TBB_machine_lg (T x)
static void	__TBB_machine_pause (int32_t delay)
static tbb::internal::machine_tsc_t	__TBB_machine_time_stamp ()

Macro Definition Documentation

__TBB_CPU_CTL_ENV_PRESENT

#define __TBB_CPU_CTL_ENV_PRESENT   1

Definition at line 67 of file gcc_ia32_common.h.

__TBB_Log2

#define __TBB_Log2

(

V

)

__TBB_machine_lg(V)

Definition at line 31 of file gcc_ia32_common.h.

__TBB_Pause

#define __TBB_Pause

(

V

)

__TBB_machine_pause(V)

Definition at line 50 of file gcc_ia32_common.h.

__TBB_time_stamp

#define __TBB_time_stamp

(

)

__TBB_machine_time_stamp()

Definition at line 63 of file gcc_ia32_common.h.

Function Documentation

__TBB_machine_lg()

template<typename T >

static intptr_t __TBB_machine_lg ( T  x )

inlinestatic

Definition at line 25 of file gcc_ia32_common.h.

                                               {
    __TBB_ASSERT(x>0, "The logarithm of a non-positive value is undefined.");
    uintptr_t j, i = x;
    __asm__("bsr %1,%0" : "=r"(j) : "r"(i));
    return j;
}

References __TBB_ASSERT.

__TBB_machine_pause()

static void __TBB_machine_pause ( int32_t  delay )

inlinestatic

Definition at line 44 of file gcc_ia32_common.h.

                                                        {
    for (int32_t i = 0; i < delay; i++) {
       __asm__ __volatile__("pause;");
    }
    return;
}

__TBB_machine_time_stamp()

static tbb::internal::machine_tsc_t __TBB_machine_time_stamp ( )

inlinestatic

Definition at line 54 of file gcc_ia32_common.h.

                                                                  {
#if __INTEL_COMPILER
    return _rdtsc();
#else
    tbb::internal::uint32_t hi, lo;
    __asm__ __volatile__("rdtsc" : "=d"(hi), "=a"(lo));
    return (tbb::internal::machine_tsc_t( hi ) << 32) | lo;
#endif
}