tbb::internal::cpu_ctl_env Class Reference

#include <gcc_ia32_common.h>

Collaboration diagram for tbb::internal::cpu_ctl_env:

Public Member Functions
bool	operator!= (const cpu_ctl_env &ctl) const
void	get_env ()
void	set_env () const
bool	operator!= (const cpu_ctl_env &ctl) const
void	get_env ()
void	set_env () const
bool	operator!= (const cpu_ctl_env &ctl) const
void	get_env ()
void	set_env () const
	cpu_ctl_env ()
	~cpu_ctl_env ()
	cpu_ctl_env (const cpu_ctl_env &src)
cpu_ctl_env &	operator= (const cpu_ctl_env &src)
bool	operator!= (const cpu_ctl_env &ctl) const
void	get_env ()
const cpu_ctl_env &	set_env () const

Private Attributes
int	mxcsr
short	x87cw
unsigned int	my_ctl
fenv_t *	my_fenv_ptr

Static Private Attributes
static const int	MXCSR_CONTROL_MASK = ~0x3f

Detailed Description

Definition at line 70 of file gcc_ia32_common.h.

Constructor & Destructor Documentation

cpu_ctl_env() [1/2]

tbb::internal::cpu_ctl_env::cpu_ctl_env ( )

inline

Definition at line 413 of file scheduler_common.h.

: my_fenv_ptr(NULL) {}

~cpu_ctl_env()

tbb::internal::cpu_ctl_env::~cpu_ctl_env ( )

inline

Definition at line 414 of file scheduler_common.h.

                   {
        if ( my_fenv_ptr )
            tbb::internal::NFS_Free( (void*)my_fenv_ptr );
    }

References tbb::internal::NFS_Free().

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cpu_ctl_env() [2/2]

tbb::internal::cpu_ctl_env::cpu_ctl_env ( const cpu_ctl_env &  src )

inline

Definition at line 424 of file scheduler_common.h.

                                          : my_fenv_ptr(NULL) {
        *this = src;
    }

Member Function Documentation

get_env() [1/4]

void tbb::internal::cpu_ctl_env::get_env ( )

inline

Definition at line 77 of file gcc_ia32_common.h.

                   {
    #if __TBB_ICC_12_0_INL_ASM_FSTCW_BROKEN
        cpu_ctl_env loc_ctl;
        __asm__ __volatile__ (
                "stmxcsr %0\n\t"
                "fstcw %1"
                : "=m"(loc_ctl.mxcsr), "=m"(loc_ctl.x87cw)
        );
        *this = loc_ctl;
    #else
        __asm__ __volatile__ (
                "stmxcsr %0\n\t"
                "fstcw %1"
                : "=m"(mxcsr), "=m"(x87cw)
        );
    #endif
        mxcsr &= MXCSR_CONTROL_MASK;
    }

References mxcsr, MXCSR_CONTROL_MASK, and x87cw.

Referenced by tbb::internal::arena::arena().

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get_env() [2/4]

void tbb::internal::cpu_ctl_env::get_env ( )

inline

Definition at line 121 of file msvc_armv7.h.

{ my_ctl = _control87(0, 0); }

References my_ctl.

get_env() [3/4]

void tbb::internal::cpu_ctl_env::get_env ( )

inline

Definition at line 234 of file msvc_ia32_common.h.

                   {
        __TBB_get_cpu_ctl_env( this );
        mxcsr &= MXCSR_CONTROL_MASK;
    }

References __TBB_get_cpu_ctl_env(), mxcsr, and MXCSR_CONTROL_MASK.

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get_env() [4/4]

void tbb::internal::cpu_ctl_env::get_env ( )

inline

Definition at line 439 of file scheduler_common.h.

                    {
        if ( !my_fenv_ptr )
            my_fenv_ptr = (fenv_t*)tbb::internal::NFS_Allocate(1, sizeof(fenv_t), NULL);
        fegetenv( my_fenv_ptr );
    }

References tbb::internal::NFS_Allocate().

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operator!=() [1/4]

bool tbb::internal::cpu_ctl_env::operator!= ( const cpu_ctl_env &  ctl ) const

inline

Definition at line 76 of file gcc_ia32_common.h.

{ return mxcsr != ctl.mxcsr || x87cw != ctl.x87cw; }

References mxcsr, and x87cw.

operator!=() [2/4]

bool tbb::internal::cpu_ctl_env::operator!= ( const cpu_ctl_env &  ctl ) const

inline

Definition at line 120 of file msvc_armv7.h.

{ return my_ctl != ctl.my_ctl; }

References my_ctl.

operator!=() [3/4]

bool tbb::internal::cpu_ctl_env::operator!= ( const cpu_ctl_env &  ctl ) const

inline

Definition at line 233 of file msvc_ia32_common.h.

{ return mxcsr != ctl.mxcsr || x87cw != ctl.x87cw; }

References mxcsr, and x87cw.

operator!=() [4/4]

bool tbb::internal::cpu_ctl_env::operator!= ( const cpu_ctl_env &  ctl ) const

inline

Definition at line 434 of file scheduler_common.h.

                                                    {
        __TBB_ASSERT( my_fenv_ptr, "cpu_ctl_env is not initialized." );
        __TBB_ASSERT( ctl.my_fenv_ptr, "cpu_ctl_env is not initialized." );
        return memcmp( (void*)my_fenv_ptr, (void*)ctl.my_fenv_ptr, sizeof(fenv_t) );
    }

References __TBB_ASSERT, and my_fenv_ptr.

operator=()

cpu_ctl_env& tbb::internal::cpu_ctl_env::operator= ( const cpu_ctl_env &  src )

inline

Definition at line 427 of file scheduler_common.h.

                                                     {
        __TBB_ASSERT( src.my_fenv_ptr, NULL );
        if ( !my_fenv_ptr )
            my_fenv_ptr = (fenv_t*)tbb::internal::NFS_Allocate(1, sizeof(fenv_t), NULL);
        *my_fenv_ptr = *src.my_fenv_ptr;
        return *this;
    }

References __TBB_ASSERT, my_fenv_ptr, and tbb::internal::NFS_Allocate().

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set_env() [1/4]

void tbb::internal::cpu_ctl_env::set_env ( ) const

inline

Definition at line 95 of file gcc_ia32_common.h.

                         {
        __asm__ __volatile__ (
                "ldmxcsr %0\n\t"
                "fldcw %1"
                : : "m"(mxcsr), "m"(x87cw)
        );
    }

References mxcsr, and x87cw.

Referenced by tbb::internal::arena::process().

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set_env() [2/4]

void tbb::internal::cpu_ctl_env::set_env ( ) const

inline

Definition at line 122 of file msvc_armv7.h.

{ _control87( my_ctl, ~0U ); }

References my_ctl.

set_env() [3/4]

void tbb::internal::cpu_ctl_env::set_env ( ) const

inline

Definition at line 238 of file msvc_ia32_common.h.

{ __TBB_set_cpu_ctl_env( this ); }

References __TBB_set_cpu_ctl_env().

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set_env() [4/4]

const cpu_ctl_env& tbb::internal::cpu_ctl_env::set_env ( ) const

inline

Definition at line 444 of file scheduler_common.h.

                                        {
        __TBB_ASSERT( my_fenv_ptr, "cpu_ctl_env is not initialized." );
        fesetenv( my_fenv_ptr );
        return *this;
    }

References __TBB_ASSERT.

Member Data Documentation

mxcsr

int tbb::internal::cpu_ctl_env::mxcsr

private

Definition at line 72 of file gcc_ia32_common.h.

Referenced by get_env(), operator!=(), and set_env().

MXCSR_CONTROL_MASK

static const int tbb::internal::cpu_ctl_env::MXCSR_CONTROL_MASK = ~0x3f

staticprivate

Definition at line 74 of file gcc_ia32_common.h.

Referenced by get_env().

my_ctl

unsigned int tbb::internal::cpu_ctl_env::my_ctl

private

Definition at line 118 of file msvc_armv7.h.

Referenced by get_env(), operator!=(), and set_env().

my_fenv_ptr

fenv_t* tbb::internal::cpu_ctl_env::my_fenv_ptr

private

Definition at line 411 of file scheduler_common.h.

Referenced by operator!=(), and operator=().

x87cw

short tbb::internal::cpu_ctl_env::x87cw

private

Definition at line 73 of file gcc_ia32_common.h.

Referenced by get_env(), operator!=(), and set_env().

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The documentation for this class was generated from the following files:

• gcc_ia32_common.h
• msvc_armv7.h
• msvc_ia32_common.h
• scheduler_common.h