sdfg::math::cmath Namespace Reference

Classes
class	CMathNode
class	CMathNodeSerializer
class	CMathNodeDispatcher

Enumerations
enum class	CMathFunction {   sin , cos , tan , asin ,   acos , atan , atan2 , sinh ,   cosh , tanh , asinh , acosh ,   atanh , exp , exp2 , exp10 ,   expm1 , log , log10 , log2 ,   log1p , pow , sqrt , cbrt ,   hypot , erf , erfc , tgamma ,   lgamma , fabs , ceil , floor ,   trunc , round , lround , llround ,   roundeven , nearbyint , rint , lrint ,   llrint , fmod , remainder , frexp ,   ldexp , modf , scalbn , scalbln ,   ilogb , logb , nextafter , nexttoward ,   copysign , fmax , fmin , fdim ,   fma }
	Enumeration of C math library functions. More...

Functions
data_flow::LibraryNodeCode	LibraryNodeType_CMath ("CMath")
data_flow::LibraryNodeCode	LibraryNodeType_CMath_Deprecated ("Intrinsic")
constexpr size_t	cmath_function_to_arity (CMathFunction func)
	Get arity of CMathFunction enum.
constexpr uint64_t	cmath_function_to_flop (CMathFunction func)
	Approximate flop-equivalent cost of a libm call.
constexpr const char *	cmath_function_to_stem (CMathFunction func)
	Convert CMathFunction enum to function name stem (without type suffix).
CMathFunction	string_to_cmath_function (const std::string &name)
std::string	get_cmath_intrinsic_name (CMathFunction func, types::PrimitiveType prim_type)
	Get the correct C math intrinsic name for a given function and primitive type.
std::string	get_cmath_approximate_intrinsic_name (CMathFunction func, types::PrimitiveType prim_type)
	Fast, approximate CUDA/HIP device intrinsic for a function, if one exists.

Enumeration Type Documentation

CMathFunction

enum class sdfg::math::cmath::CMathFunction

strong

Enumeration of C math library functions.

Enumerator
sin
cos
tan
asin
acos
atan
atan2
sinh
cosh
tanh
asinh
acosh
atanh
exp
exp2
exp10
expm1
log
log10
log2
log1p
pow
sqrt
cbrt
hypot
erf
erfc
tgamma
lgamma
fabs
ceil
floor
trunc
round
lround
llround
roundeven
nearbyint
rint
lrint
llrint
fmod
remainder
frexp
ldexp
modf
scalbn
scalbln
ilogb
logb
nextafter
nexttoward
copysign
fmax
fmin
fdim
fma

Function Documentation

cmath_function_to_arity()

size_t sdfg::math::cmath::cmath_function_to_arity ( CMathFunction func )

constexpr

Get arity of CMathFunction enum.

Parameters

func	The CMathFunction enum value

Returns

The arity of the enum as a size_t

cmath_function_to_flop()

uint64_t sdfg::math::cmath::cmath_function_to_flop ( CMathFunction func )

constexpr

Approximate flop-equivalent cost of a libm call.

Elementwise math lowers to a single library call whose polynomial implementation retires several floating-point instructions; FLOPAnalysis weights the node with this instead of counting it as one flop. Values are coarse tiers, not exact per-libm counts. The switch is exhaustive (no default), so adding a CMathFunction without a cost here fails to compile.

cmath_function_to_stem()

const char * sdfg::math::cmath::cmath_function_to_stem ( CMathFunction func )

constexpr

Convert CMathFunction enum to function name stem (without type suffix).

Parameters

func	The CMathFunction enum value

Returns

The function name stem as a string

get_cmath_approximate_intrinsic_name()

std::string sdfg::math::cmath::get_cmath_approximate_intrinsic_name ( CMathFunction func, types::PrimitiveType prim_type )

inline

Fast, approximate CUDA/HIP device intrinsic for a function, if one exists.

Returns

The intrinsic name (e.g. "__expf"), or an empty string if there is none for this type

get_cmath_intrinsic_name()

std::string sdfg::math::cmath::get_cmath_intrinsic_name ( CMathFunction func, types::PrimitiveType prim_type )

inline

Get the correct C math intrinsic name for a given function and primitive type.

Returns the appropriate intrinsic function name based on the primitive type:

• Float: adds 'f' suffix (e.g., "fmax" -> "fmaxf")
• Double: uses base name (e.g., "fmax" -> "fmax")
• Long Double/X86_FP80: adds 'l' suffix (e.g., "fmax" -> "fmaxl")

Parameters

func	The CMathFunction enum value
prim_type	The primitive type to generate the intrinsic for

Returns

The correct intrinsic function name

LibraryNodeType_CMath()

data_flow::LibraryNodeCode sdfg::math::cmath::LibraryNodeType_CMath ( "CMath" )

inline

LibraryNodeType_CMath_Deprecated()

data_flow::LibraryNodeCode sdfg::math::cmath::LibraryNodeType_CMath_Deprecated ( "Intrinsic" )

inline

string_to_cmath_function()

CMathFunction sdfg::math::cmath::string_to_cmath_function

(

const std::string &

name

)