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Use floor functions not __floor functions in glibc libm.

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Similar to the changes that were made to call sqrt functions directly
in glibc, instead of __ieee754_sqrt variants, so that the compiler
could inline them automatically without needing special inline
definitions in lots of math_private.h headers, this patch makes libm
code call floor functions directly instead of __floor variants,
removing the inlines / macros for x86_64 (SSE4.1) and powerpc
(POWER5).

The redirection used to ensure that __ieee754_sqrt does still get
called when the compiler doesn't inline a built-in function expansion
is refactored so it can be applied to other functions; the refactoring
is arranged so it's not limited to unary functions either (it would be
reasonable to use this mechanism for copysign - removing the inline in
math_private_calls.h but also eliminating unnecessary local PLT entry
use in the cases (powerpc soft-float and e500v1, for IBM long double)
where copysign calls don't get inlined).

The point of this change is that more architectures can get floor
calls inlined where they weren't previously (AArch64, for example),
without needing special inline definitions in their math_private.h,
and existing such definitions in math_private.h headers can be
removed.

Note that it's possible that in some cases an inline may be used where
an IFUNC call was previously used - this is the case on x86_64, for
example.  I think the direct calls to floor are still appropriate; if
there's any significant performance cost from inline SSE2 floor
instead of an IFUNC call ending up with SSE4.1 floor, that indicates
that either the function should be doing something else that's faster
than using floor at all, or it should itself have IFUNC variants, or
that the compiler choice of inlining for generic tuning should change
to allow for the possibility that, by not inlining, an SSE4.1 IFUNC
might be called at runtime - but not that glibc should avoid calling
floor internally.  (After all, all the same considerations would apply
to any user program calling floor, where it might either be inlined or
left as an out-of-line call allowing for a possible IFUNC.)

Tested for x86_64, and with build-many-glibcs.py.

	* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
	__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT):
	New macro.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (MATH_REDIRECT_LDBL): Likewise.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (MATH_REDIRECT_F128): Likewise.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (MATH_REDIRECT_UNARY_ARGS): Likewise.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (sqrt): Redirect using MATH_REDIRECT.
	[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
	&& !NO_MATH_REDIRECT] (floor): Likewise.
	* sysdeps/aarch64/fpu/s_floor.c: Define NO_MATH_REDIRECT before
	header inclusion.
	* sysdeps/aarch64/fpu/s_floorf.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_floor.c: Likewise.
	* sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c: Likewise.
	* sysdeps/ieee754/float128/s_floorf128.c: Likewise.
	* sysdeps/ieee754/flt-32/s_floorf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_floorl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/s_floor_template.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/riscv/rv64/rvd/s_floor.c: Likewise.
	* sysdeps/riscv/rvf/s_floorf.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_floor.c: Likewise.
	* sysdeps/x86_64/fpu/multiarch/s_floorf.c: Likewise.
	* sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__floor):
	Remove macro.
	[_ARCH_PWR5X] (__floorf): Likewise.
	* sysdeps/x86_64/fpu/math_private.h [__SSE4_1__] (__floor): Remove
	inline function.
	[__SSE4_1__] (__floorf): Likewise.
	* math/w_lgamma_main.c (LGFUNC (__lgamma)): Use floor functions
	instead of __floor variants.
	* math/w_lgamma_r_compat.c (__lgamma_r): Likewise.
	* math/w_lgammaf_main.c (LGFUNC (__lgammaf)): Likewise.
	* math/w_lgammaf_r_compat.c (__lgammaf_r): Likewise.
	* math/w_lgammal_main.c (LGFUNC (__lgammal)): Likewise.
	* math/w_lgammal_r_compat.c (__lgammal_r): Likewise.
	* math/w_tgamma_compat.c (__tgamma): Likewise.
	* math/w_tgamma_template.c (M_DECL_FUNC (__tgamma)): Likewise.
	* math/w_tgammaf_compat.c (__tgammaf): Likewise.
	* math/w_tgammal_compat.c (__tgammal): Likewise.
	* sysdeps/ieee754/dbl-64/e_lgamma_r.c (sin_pi): Likewise.
	* sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2):
	Likewise.
	* sysdeps/ieee754/dbl-64/lgamma_neg.c (__lgamma_neg): Likewise.
	* sysdeps/ieee754/flt-32/e_lgammaf_r.c (sin_pif): Likewise.
	* sysdeps/ieee754/flt-32/lgamma_negf.c (__lgamma_negf): Likewise.
	* sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Likewise.
	* sysdeps/ieee754/ldbl-128/lgamma_negl.c (__lgamma_negl):
	Likewise.
	* sysdeps/ieee754/ldbl-128/s_expm1l.c (__expm1l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c (__ieee754_lgammal_r):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/lgamma_negl.c (__lgamma_negl):
	Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_truncl.c (__truncl): Likewise.
	* sysdeps/ieee754/ldbl-96/e_lgammal_r.c (sin_pi): Likewise.
	* sysdeps/ieee754/ldbl-96/lgamma_negl.c (__lgamma_negl): Likewise.
	* sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise.
	* sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
This commit is contained in:
Joseph Myers 2018-09-14 13:09:01 +00:00
parent 221e4babca
commit e44acb2063
51 changed files with 160 additions and 96 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

76
ChangeLog
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@ -1,3 +1,79 @@
2018-09-14 Joseph Myers <joseph@codesourcery.com>
* include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ &&
__FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT):
New macro.
[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
&& !NO_MATH_REDIRECT] (MATH_REDIRECT_LDBL): Likewise.
[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
&& !NO_MATH_REDIRECT] (MATH_REDIRECT_F128): Likewise.
[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
&& !NO_MATH_REDIRECT] (MATH_REDIRECT_UNARY_ARGS): Likewise.
[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
&& !NO_MATH_REDIRECT] (sqrt): Redirect using MATH_REDIRECT.
[!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
&& !NO_MATH_REDIRECT] (floor): Likewise.
* sysdeps/aarch64/fpu/s_floor.c: Define NO_MATH_REDIRECT before
header inclusion.
* sysdeps/aarch64/fpu/s_floorf.c: Likewise.
* sysdeps/ieee754/dbl-64/s_floor.c: Likewise.
* sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c: Likewise.
* sysdeps/ieee754/float128/s_floorf128.c: Likewise.
* sysdeps/ieee754/flt-32/s_floorf.c: Likewise.
* sysdeps/ieee754/ldbl-128/s_floorl.c: Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise.
* sysdeps/m68k/m680x0/fpu/s_floor_template.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf.c: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c: Likewise.
* sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Likewise.
* sysdeps/riscv/rv64/rvd/s_floor.c: Likewise.
* sysdeps/riscv/rvf/s_floorf.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floor.c: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_floor.c: Likewise.
* sysdeps/x86_64/fpu/multiarch/s_floorf.c: Likewise.
* sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__floor):
Remove macro.
[_ARCH_PWR5X] (__floorf): Likewise.
* sysdeps/x86_64/fpu/math_private.h [__SSE4_1__] (__floor): Remove
inline function.
[__SSE4_1__] (__floorf): Likewise.
* math/w_lgamma_main.c (LGFUNC (__lgamma)): Use floor functions
instead of __floor variants.
* math/w_lgamma_r_compat.c (__lgamma_r): Likewise.
* math/w_lgammaf_main.c (LGFUNC (__lgammaf)): Likewise.
* math/w_lgammaf_r_compat.c (__lgammaf_r): Likewise.
* math/w_lgammal_main.c (LGFUNC (__lgammal)): Likewise.
* math/w_lgammal_r_compat.c (__lgammal_r): Likewise.
* math/w_tgamma_compat.c (__tgamma): Likewise.
* math/w_tgamma_template.c (M_DECL_FUNC (__tgamma)): Likewise.
* math/w_tgammaf_compat.c (__tgammaf): Likewise.
* math/w_tgammal_compat.c (__tgammal): Likewise.
* sysdeps/ieee754/dbl-64/e_lgamma_r.c (sin_pi): Likewise.
* sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2):
Likewise.
* sysdeps/ieee754/dbl-64/lgamma_neg.c (__lgamma_neg): Likewise.
* sysdeps/ieee754/flt-32/e_lgammaf_r.c (sin_pif): Likewise.
* sysdeps/ieee754/flt-32/lgamma_negf.c (__lgamma_negf): Likewise.
* sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r):
Likewise.
* sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Likewise.
* sysdeps/ieee754/ldbl-128/lgamma_negl.c (__lgamma_negl):
Likewise.
* sysdeps/ieee754/ldbl-128/s_expm1l.c (__expm1l): Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c (__ieee754_lgammal_r):
Likewise.
* sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Likewise.
* sysdeps/ieee754/ldbl-128ibm/lgamma_negl.c (__lgamma_negl):
Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Likewise.
* sysdeps/ieee754/ldbl-128ibm/s_truncl.c (__truncl): Likewise.
* sysdeps/ieee754/ldbl-96/e_lgammal_r.c (sin_pi): Likewise.
* sysdeps/ieee754/ldbl-96/lgamma_negl.c (__lgamma_negl): Likewise.
* sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise.
* sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
2018-09-12 Joseph Myers <joseph@codesourcery.com> 2018-09-12 Joseph Myers <joseph@codesourcery.com>
* elf/Makefile (modules-names-tests): New variable. * elf/Makefile (modules-names-tests): New variable.

29
include/math.h
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@ -79,16 +79,29 @@ fabsf128 (_Float128 x)
# if !(defined __FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) # if !(defined __FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0)
# ifndef NO_MATH_REDIRECT # ifndef NO_MATH_REDIRECT
/* Declare sqrt for use within GLIBC. Compilers typically inline sqrt as a /* Declare some functions for use within GLIBC. Compilers typically
single instruction. Use an asm to avoid use of PLTs if it doesn't. */ inline those functions as a single instruction. Use an asm to
float (sqrtf) (float) asm ("__ieee754_sqrtf"); avoid use of PLTs if it doesn't. */
double (sqrt) (double) asm ("__ieee754_sqrt"); # define MATH_REDIRECT(FUNC, PREFIX, ARGS) \
# ifndef __NO_LONG_DOUBLE_MATH float (FUNC ## f) (ARGS (float)) asm (PREFIX #FUNC "f"); \
long double (sqrtl) (long double) asm ("__ieee754_sqrtl"); double (FUNC) (ARGS (double)) asm (PREFIX #FUNC ); \
MATH_REDIRECT_LDBL (FUNC, PREFIX, ARGS) \
MATH_REDIRECT_F128 (FUNC, PREFIX, ARGS)
# ifdef __NO_LONG_DOUBLE_MATH
# define MATH_REDIRECT_LDBL(FUNC, PREFIX, ARGS)
# else
# define MATH_REDIRECT_LDBL(FUNC, PREFIX, ARGS) \
long double (FUNC ## l) (ARGS (long double)) asm (PREFIX #FUNC "l");
# endif # endif
# if __HAVE_DISTINCT_FLOAT128 > 0 # if __HAVE_DISTINCT_FLOAT128
_Float128 (sqrtf128) (_Float128) asm ("__ieee754_sqrtf128"); # define MATH_REDIRECT_F128(FUNC, PREFIX, ARGS) \
_Float128 (FUNC ## f128) (ARGS (_Float128)) asm (PREFIX #FUNC "f128");
# else
# define MATH_REDIRECT_F128(FUNC, PREFIX, ARGS)
# endif # endif
# define MATH_REDIRECT_UNARY_ARGS(TYPE) TYPE
MATH_REDIRECT (sqrt, "__ieee754_", MATH_REDIRECT_UNARY_ARGS)
MATH_REDIRECT (floor, "__", MATH_REDIRECT_UNARY_ARGS)
# endif # endif
# endif # endif

2
math/w_lgamma_main.c
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@ -31,7 +31,7 @@ LGFUNC (__lgamma) (double x)
if(__builtin_expect(!isfinite(y), 0) if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_) && isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard(x, x, return __kernel_standard(x, x,
__floor(x)==x&&x<=0.0 floor(x)==x&&x<=0.0
? 15 /* lgamma pole */ ? 15 /* lgamma pole */
: 14); /* lgamma overflow */ : 14); /* lgamma overflow */

2
math/w_lgamma_r_compat.c
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@ -28,7 +28,7 @@ __lgamma_r(double x, int *signgamp)
if(__builtin_expect(!isfinite(y), 0) if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_) && isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard(x, x, return __kernel_standard(x, x,
__floor(x)==x&&x<=0.0 floor(x)==x&&x<=0.0
? 15 /* lgamma pole */ ? 15 /* lgamma pole */
: 14); /* lgamma overflow */ : 14); /* lgamma overflow */

2
math/w_lgammaf_main.c
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@ -28,7 +28,7 @@ LGFUNC (__lgammaf) (float x)
if(__builtin_expect(!isfinite(y), 0) if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_) && isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard_f(x, x, return __kernel_standard_f(x, x,
__floorf(x)==x&&x<=0.0f floorf(x)==x&&x<=0.0f
? 115 /* lgamma pole */ ? 115 /* lgamma pole */
: 114); /* lgamma overflow */ : 114); /* lgamma overflow */

2
math/w_lgammaf_r_compat.c
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@ -31,7 +31,7 @@ __lgammaf_r(float x, int *signgamp)
if(__builtin_expect(!isfinite(y), 0) if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_) && isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard_f(x, x, return __kernel_standard_f(x, x,
__floorf(x)==x&&x<=0.0f floorf(x)==x&&x<=0.0f
? 115 /* lgamma pole */ ? 115 /* lgamma pole */
: 114); /* lgamma overflow */ : 114); /* lgamma overflow */

2
math/w_lgammal_main.c
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@ -35,7 +35,7 @@ LGFUNC (__lgammal) (long double x)
if(__builtin_expect(!isfinite(y), 0) if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_) && isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard_l(x, x, return __kernel_standard_l(x, x,
__floorl(x)==x&&x<=0.0L floorl(x)==x&&x<=0.0L
? 215 /* lgamma pole */ ? 215 /* lgamma pole */
: 214); /* lgamma overflow */ : 214); /* lgamma overflow */

2
math/w_lgammal_r_compat.c
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@ -32,7 +32,7 @@ __lgammal_r(long double x, int *signgamp)
if(__builtin_expect(!isfinite(y), 0) if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_) && isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard(x, x, return __kernel_standard(x, x,
__floorl(x)==x&&x<=0.0 floorl(x)==x&&x<=0.0
? 215 /* lgamma pole */ ? 215 /* lgamma pole */
: 214); /* lgamma overflow */ : 214); /* lgamma overflow */

2
math/w_tgamma_compat.c
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@ -33,7 +33,7 @@ __tgamma(double x)
&& _LIB_VERSION != _IEEE_) { && _LIB_VERSION != _IEEE_) {
if (x == 0.0) if (x == 0.0)
return __kernel_standard(x,x,50); /* tgamma pole */ return __kernel_standard(x,x,50); /* tgamma pole */
else if(__floor(x)==x&&x<0.0) else if(floor(x)==x&&x<0.0)
return __kernel_standard(x,x,41); /* tgamma domain */ return __kernel_standard(x,x,41); /* tgamma domain */
else if (y == 0) else if (y == 0)
__set_errno (ERANGE); /* tgamma underflow */ __set_errno (ERANGE); /* tgamma underflow */

2
math/w_tgamma_template.c
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@ -41,7 +41,7 @@ M_DECL_FUNC (__tgamma) (FLOAT x)
if (x == 0) if (x == 0)
/* Pole error: tgamma(x=0). */ /* Pole error: tgamma(x=0). */
__set_errno (ERANGE); __set_errno (ERANGE);
else if (M_SUF (__floor) (x) == x && x < 0) else if (M_SUF (floor) (x) == x && x < 0)
/* Domain error: tgamma(integer x<0). */ /* Domain error: tgamma(integer x<0). */
__set_errno (EDOM); __set_errno (EDOM);
else else

2
math/w_tgammaf_compat.c
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@ -32,7 +32,7 @@ __tgammaf(float x)
if (x == (float)0.0) if (x == (float)0.0)
/* tgammaf pole */ /* tgammaf pole */
return __kernel_standard_f(x, x, 150); return __kernel_standard_f(x, x, 150);
else if(__floorf(x)==x&&x<0.0f) else if(floorf(x)==x&&x<0.0f)
/* tgammaf domain */ /* tgammaf domain */
return __kernel_standard_f(x, x, 141); return __kernel_standard_f(x, x, 141);
else if (y == 0) else if (y == 0)

2
math/w_tgammal_compat.c
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@ -36,7 +36,7 @@ __tgammal(long double x)
&& _LIB_VERSION != _IEEE_) { && _LIB_VERSION != _IEEE_) {
if(x==0.0) if(x==0.0)
return __kernel_standard_l(x,x,250); /* tgamma pole */ return __kernel_standard_l(x,x,250); /* tgamma pole */
else if(__floorl(x)==x&&x<0.0L) else if(floorl(x)==x&&x<0.0L)
return __kernel_standard_l(x,x,241); /* tgamma domain */ return __kernel_standard_l(x,x,241); /* tgamma domain */
else if (y == 0) else if (y == 0)
__set_errno (ERANGE); /* tgamma underflow */ __set_errno (ERANGE); /* tgamma underflow */

1
sysdeps/aarch64/fpu/s_floor.c
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@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <libm-alias-double.h> #include <libm-alias-double.h>

1
sysdeps/aarch64/fpu/s_floorf.c
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@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <libm-alias-float.h> #include <libm-alias-float.h>

4
sysdeps/ieee754/dbl-64/e_lgamma_r.c
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@ -168,10 +168,10 @@ sin_pi(double x)
* argument reduction, make sure inexact flag not raised if input * argument reduction, make sure inexact flag not raised if input
* is an integer * is an integer
*/ */
z = __floor(y); z = floor(y);
if(z!=y) { /* inexact anyway */ if(z!=y) { /* inexact anyway */
y *= 0.5; y *= 0.5;
y = 2.0*(y - __floor(y)); /* y = |x| mod 2.0 */ y = 2.0*(y - floor(y)); /* y = |x| mod 2.0 */
n = (int) (y*4.0); n = (int) (y*4.0);
} else { } else {
if(ix>=0x43400000) { if(ix>=0x43400000) {

2
sysdeps/ieee754/dbl-64/k_rem_pio2.c
View File

@ -196,7 +196,7 @@ recompute:
/* compute n */ /* compute n */
z = __scalbn (z, q0); /* actual value of z */ z = __scalbn (z, q0); /* actual value of z */
z -= 8.0 * __floor (z * 0.125); /* trim off integer >= 8 */ z -= 8.0 * floor (z * 0.125); /* trim off integer >= 8 */
n = (int32_t) z; n = (int32_t) z;
z -= (double) n; z -= (double) n;
ih = 0; ih = 0;

4
sysdeps/ieee754/dbl-64/lgamma_neg.c
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@ -282,7 +282,7 @@ __lgamma_neg (double x, int *signgamp)
{ {
/* Determine the half-integer region X lies in, handle exact /* Determine the half-integer region X lies in, handle exact
integers and determine the sign of the result. */ integers and determine the sign of the result. */
int i = __floor (-2 * x); int i = floor (-2 * x);
if ((i & 1) == 0 && i == -2 * x) if ((i & 1) == 0 && i == -2 * x)
return 1.0 / 0.0; return 1.0 / 0.0;
double xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2); double xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2);
@ -299,7 +299,7 @@ __lgamma_neg (double x, int *signgamp)
approximations to an adjusted version of the gamma function. */ approximations to an adjusted version of the gamma function. */
if (i < 2) if (i < 2)
{ {
int j = __floor (-8 * x) - 16; int j = floor (-8 * x) - 16;
double xm = (-33 - 2 * j) * 0.0625; double xm = (-33 - 2 * j) * 0.0625;
double x_adj = x - xm; double x_adj = x - xm;
size_t deg = poly_deg[j]; size_t deg = poly_deg[j];

1
sysdeps/ieee754/dbl-64/s_floor.c
View File

@ -17,6 +17,7 @@
* Bit twiddling. * Bit twiddling.
*/ */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_private.h> #include <math_private.h>
#include <libm-alias-double.h> #include <libm-alias-double.h>

1
sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c
View File

@ -30,6 +30,7 @@
* ==================================================== * ====================================================
*/ */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_private.h> #include <math_private.h>
#include <stdint.h> #include <stdint.h>

1
sysdeps/ieee754/float128/s_floorf128.c
View File

@ -1,2 +1,3 @@
#define NO_MATH_REDIRECT
#include <float128_private.h> #include <float128_private.h>
#include "../ldbl-128/s_floorl.c" #include "../ldbl-128/s_floorl.c"

4
sysdeps/ieee754/flt-32/e_lgammaf_r.c
View File

@ -104,10 +104,10 @@ sin_pif(float x)
* argument reduction, make sure inexact flag not raised if input * argument reduction, make sure inexact flag not raised if input
* is an integer * is an integer
*/ */
z = __floorf(y); z = floorf(y);
if(z!=y) { /* inexact anyway */ if(z!=y) { /* inexact anyway */
y *= (float)0.5; y *= (float)0.5;
y = (float)2.0*(y - __floorf(y)); /* y = |x| mod 2.0 */ y = (float)2.0*(y - floorf(y)); /* y = |x| mod 2.0 */
n = (int) (y*(float)4.0); n = (int) (y*(float)4.0);
} else { } else {
if(ix>=0x4b800000) { if(ix>=0x4b800000) {

4
sysdeps/ieee754/flt-32/lgamma_negf.c
View File

@ -197,7 +197,7 @@ __lgamma_negf (float x, int *signgamp)
{ {
/* Determine the half-integer region X lies in, handle exact /* Determine the half-integer region X lies in, handle exact
integers and determine the sign of the result. */ integers and determine the sign of the result. */
int i = __floorf (-2 * x); int i = floorf (-2 * x);
if ((i & 1) == 0 && i == -2 * x) if ((i & 1) == 0 && i == -2 * x)
return 1.0f / 0.0f; return 1.0f / 0.0f;
float xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2); float xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2);
@ -214,7 +214,7 @@ __lgamma_negf (float x, int *signgamp)
approximations to an adjusted version of the gamma function. */ approximations to an adjusted version of the gamma function. */
if (i < 2) if (i < 2)
{ {
int j = __floorf (-8 * x) - 16; int j = floorf (-8 * x) - 16;
float xm = (-33 - 2 * j) * 0.0625f; float xm = (-33 - 2 * j) * 0.0625f;
float x_adj = x - xm; float x_adj = x - xm;
size_t deg = poly_deg[j]; size_t deg = poly_deg[j];

1
sysdeps/ieee754/flt-32/s_floorf.c
View File

@ -20,6 +20,7 @@
* Bit twiddling. * Bit twiddling.
*/ */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_private.h> #include <math_private.h>
#include <libm-alias-float.h> #include <libm-alias-float.h>

6
sysdeps/ieee754/ldbl-128/e_lgammal_r.c
View File

@ -776,11 +776,11 @@ __ieee754_lgammal_r (_Float128 x, int *signgamp)
if (x < -2 && x > -50) if (x < -2 && x > -50)
return __lgamma_negl (x, signgamp); return __lgamma_negl (x, signgamp);
q = -x; q = -x;
p = __floorl (q); p = floorl (q);
if (p == q) if (p == q)
return (one / fabsl (p - p)); return (one / fabsl (p - p));
_Float128 halfp = p * L(0.5); _Float128 halfp = p * L(0.5);
if (halfp == __floorl (halfp)) if (halfp == floorl (halfp))
*signgamp = -1; *signgamp = -1;
else else
*signgamp = 1; *signgamp = 1;
@ -801,7 +801,7 @@ __ieee754_lgammal_r (_Float128 x, int *signgamp)
if (x < L(13.5)) if (x < L(13.5))
{ {
p = 0; p = 0;
nx = __floorl (x + L(0.5)); nx = floorl (x + L(0.5));
nn = nx; nn = nx;
switch (nn) switch (nn)
{ {

6
sysdeps/ieee754/ldbl-128/e_powl.c
View File

@ -198,10 +198,10 @@ __ieee754_powl (_Float128 x, _Float128 y)
yisint = 2; /* even integer y */ yisint = 2; /* even integer y */
else if (iy >= 0x3fff0000) /* 1.0 */ else if (iy >= 0x3fff0000) /* 1.0 */
{ {
if (__floorl (y) == y) if (floorl (y) == y)
{ {
z = 0.5 * y; z = 0.5 * y;
if (__floorl (z) == z) if (floorl (z) == z)
yisint = 2; yisint = 2;
else else
yisint = 1; yisint = 1;
@ -413,7 +413,7 @@ __ieee754_powl (_Float128 x, _Float128 y)
n = 0; n = 0;
if (i > 0x3ffe0000) if (i > 0x3ffe0000)
{ /* if |z| > 0.5, set n = [z+0.5] */ { /* if |z| > 0.5, set n = [z+0.5] */
n = __floorl (z + L(0.5)); n = floorl (z + L(0.5));
t = n; t = n;
p_h -= t; p_h -= t;
} }

4
sysdeps/ieee754/ldbl-128/lgamma_negl.c
View File

@ -449,7 +449,7 @@ __lgamma_negl (_Float128 x, int *signgamp)
{ {
/* Determine the half-integer region X lies in, handle exact /* Determine the half-integer region X lies in, handle exact
integers and determine the sign of the result. */ integers and determine the sign of the result. */
int i = __floorl (-2 * x); int i = floorl (-2 * x);
if ((i & 1) == 0 && i == -2 * x) if ((i & 1) == 0 && i == -2 * x)
return L(1.0) / L(0.0); return L(1.0) / L(0.0);
_Float128 xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2); _Float128 xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2);
@ -466,7 +466,7 @@ __lgamma_negl (_Float128 x, int *signgamp)
approximations to an adjusted version of the gamma function. */ approximations to an adjusted version of the gamma function. */
if (i < 2) if (i < 2)
{ {
int j = __floorl (-8 * x) - 16; int j = floorl (-8 * x) - 16;
_Float128 xm = (-33 - 2 * j) * L(0.0625); _Float128 xm = (-33 - 2 * j) * L(0.0625);
_Float128 x_adj = x - xm; _Float128 x_adj = x - xm;
size_t deg = poly_deg[j]; size_t deg = poly_deg[j];

2
sysdeps/ieee754/ldbl-128/s_expm1l.c
View File

@ -136,7 +136,7 @@ __expm1l (_Float128 x)
/* Express x = ln 2 (k + remainder), remainder not exceeding 1/2. */ /* Express x = ln 2 (k + remainder), remainder not exceeding 1/2. */
xx = C1 + C2; /* ln 2. */ xx = C1 + C2; /* ln 2. */
px = __floorl (0.5 + x / xx); px = floorl (0.5 + x / xx);
k = px; k = px;
/* remainder times ln 2 */ /* remainder times ln 2 */
x -= px * C1; x -= px * C1;

1
sysdeps/ieee754/ldbl-128/s_floorl.c
View File

@ -24,6 +24,7 @@ static char rcsid[] = "$NetBSD: $";
* Bit twiddling. * Bit twiddling.
*/ */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_private.h> #include <math_private.h>
#include <libm-alias-ldouble.h> #include <libm-alias-ldouble.h>

6
sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c
View File

@ -726,11 +726,11 @@ __ieee754_lgammal_r (long double x, int *signgamp)
if (x < -2 && x > -48) if (x < -2 && x > -48)
return __lgamma_negl (x, signgamp); return __lgamma_negl (x, signgamp);
q = -x; q = -x;
p = __floorl (q); p = floorl (q);
if (p == q) if (p == q)
return (one / fabsl (p - p)); return (one / fabsl (p - p));
long double halfp = p * 0.5L; long double halfp = p * 0.5L;
if (halfp == __floorl (halfp)) if (halfp == floorl (halfp))
*signgamp = -1; *signgamp = -1;
else else
*signgamp = 1; *signgamp = 1;
@ -751,7 +751,7 @@ __ieee754_lgammal_r (long double x, int *signgamp)
if (x < 13.5L) if (x < 13.5L)
{ {
p = 0; p = 0;
nx = __floorl (x + 0.5L); nx = floorl (x + 0.5L);
nn = nx; nn = nx;
switch (nn) switch (nn)
{ {

6
sysdeps/ieee754/ldbl-128ibm/e_powl.c
View File

@ -195,10 +195,10 @@ __ieee754_powl (long double x, long double y)
yisint = 2; /* even integer y */ yisint = 2; /* even integer y */
else if (iy >= 0x3ff00000) /* 1.0 */ else if (iy >= 0x3ff00000) /* 1.0 */
{ {
if (__floorl (y) == y) if (floorl (y) == y)
{ {
z = 0.5 * y; z = 0.5 * y;
if (__floorl (z) == z) if (floorl (z) == z)
yisint = 2; yisint = 2;
else else
yisint = 1; yisint = 1;
@ -392,7 +392,7 @@ __ieee754_powl (long double x, long double y)
n = 0; n = 0;
if (i > 0x3fe00000) if (i > 0x3fe00000)
{ /* if |z| > 0.5, set n = [z+0.5] */ { /* if |z| > 0.5, set n = [z+0.5] */
n = __floorl (z + 0.5L); n = floorl (z + 0.5L);
t = n; t = n;
p_h -= t; p_h -= t;
} }

4
sysdeps/ieee754/ldbl-128ibm/lgamma_negl.c
View File

@ -430,7 +430,7 @@ __lgamma_negl (long double x, int *signgamp)
{ {
/* Determine the half-integer region X lies in, handle exact /* Determine the half-integer region X lies in, handle exact
integers and determine the sign of the result. */ integers and determine the sign of the result. */
int i = __floorl (-2 * x); int i = floorl (-2 * x);
if ((i & 1) == 0 && i == -2 * x) if ((i & 1) == 0 && i == -2 * x)
return 1.0L / 0.0L; return 1.0L / 0.0L;
long double xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2); long double xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2);
@ -447,7 +447,7 @@ __lgamma_negl (long double x, int *signgamp)
approximations to an adjusted version of the gamma function. */ approximations to an adjusted version of the gamma function. */
if (i < 2) if (i < 2)
{ {
int j = __floorl (-8 * x) - 16; int j = floorl (-8 * x) - 16;
long double xm = (-33 - 2 * j) * 0.0625L; long double xm = (-33 - 2 * j) * 0.0625L;
long double x_adj = x - xm; long double x_adj = x - xm;
size_t deg = poly_deg[j]; size_t deg = poly_deg[j];

2
sysdeps/ieee754/ldbl-128ibm/s_expm1l.c
View File

@ -120,7 +120,7 @@ __expm1l (long double x)
/* Express x = ln 2 (k + remainder), remainder not exceeding 1/2. */ /* Express x = ln 2 (k + remainder), remainder not exceeding 1/2. */
xx = C1 + C2; /* ln 2. */ xx = C1 + C2; /* ln 2. */
px = __floorl (0.5 + x / xx); px = floorl (0.5 + x / xx);
k = px; k = px;
/* remainder times ln 2 */ /* remainder times ln 2 */
x -= px * C1; x -= px * C1;

1
sysdeps/ieee754/ldbl-128ibm/s_floorl.c
View File

@ -17,6 +17,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_private.h> #include <math_private.h>
#include <math_ldbl_opt.h> #include <math_ldbl_opt.h>

2
sysdeps/ieee754/ldbl-128ibm/s_truncl.c
View File

@ -47,7 +47,7 @@ __truncl (long double x)
else else
{ {
/* The high part is a nonzero integer. */ /* The high part is a nonzero integer. */
lo = xh > 0 ? __floor (xl) : __ceil (xl); lo = xh > 0 ? floor (xl) : __ceil (xl);
xh = hi; xh = hi;
xl = lo; xl = lo;
ldbl_canonicalize_int (&xh, &xl); ldbl_canonicalize_int (&xh, &xl);

4
sysdeps/ieee754/ldbl-96/e_lgammal_r.c
View File

@ -221,11 +221,11 @@ sin_pi (long double x)
* argument reduction, make sure inexact flag not raised if input * argument reduction, make sure inexact flag not raised if input
* is an integer * is an integer
*/ */
z = __floorl (y); z = floorl (y);
if (z != y) if (z != y)
{ /* inexact anyway */ { /* inexact anyway */
y *= 0.5; y *= 0.5;
y = 2.0*(y - __floorl(y)); /* y = |x| mod 2.0 */ y = 2.0*(y - floorl(y)); /* y = |x| mod 2.0 */
n = (int) (y*4.0); n = (int) (y*4.0);
} }
else else

4
sysdeps/ieee754/ldbl-96/lgamma_negl.c
View File

@ -316,7 +316,7 @@ __lgamma_negl (long double x, int *signgamp)
{ {
/* Determine the half-integer region X lies in, handle exact /* Determine the half-integer region X lies in, handle exact
integers and determine the sign of the result. */ integers and determine the sign of the result. */
int i = __floorl (-2 * x); int i = floorl (-2 * x);
if ((i & 1) == 0 && i == -2 * x) if ((i & 1) == 0 && i == -2 * x)
return 1.0L / 0.0L; return 1.0L / 0.0L;
long double xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2); long double xn = ((i & 1) == 0 ? -i / 2 : (-i - 1) / 2);
@ -333,7 +333,7 @@ __lgamma_negl (long double x, int *signgamp)
approximations to an adjusted version of the gamma function. */ approximations to an adjusted version of the gamma function. */
if (i < 2) if (i < 2)
{ {
int j = __floorl (-8 * x) - 16; int j = floorl (-8 * x) - 16;
long double xm = (-33 - 2 * j) * 0.0625L; long double xm = (-33 - 2 * j) * 0.0625L;
long double x_adj = x - xm; long double x_adj = x - xm;
size_t deg = poly_deg[j]; size_t deg = poly_deg[j];

1
sysdeps/m68k/m680x0/fpu/s_floor_template.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library. If not, see License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
FLOAT FLOAT

20
sysdeps/powerpc/fpu/math_private.h
View File

@ -97,26 +97,6 @@ __ieee754_sqrtf128 (_Float128 __x)
__z; }) __z; })
# endif # endif
# ifndef __floor
# define __floor(x) \
({ double __z; \
__asm __volatile ( \
" frim %0,%1\n" \
: "=f" (__z) \
: "f" (x)); \
__z; })
# endif
# ifndef __floorf
# define __floorf(x) \
({ float __z; \
__asm __volatile ( \
" frim %0,%1\n" \
" frsp %0,%0\n" \
: "=f" (__z) \
: "f" (x)); \
__z; })
# endif
#endif /* defined _ARCH_PWR5X */ #endif /* defined _ARCH_PWR5X */
#endif /* _PPC_MATH_PRIVATE_H_ */ #endif /* _PPC_MATH_PRIVATE_H_ */

2
sysdeps/powerpc/power5+/fpu/s_modf.c
View File

@ -36,7 +36,7 @@ __modf (double x, double *iptr)
if (x >= 0.0) if (x >= 0.0)
{ {
*iptr = __floor (x); *iptr = floor (x);
return __copysign (x - *iptr, x); return __copysign (x - *iptr, x);
} }
else else

2
sysdeps/powerpc/power5+/fpu/s_modff.c
View File

@ -35,7 +35,7 @@ __modff (float x, float *iptr)
if (x >= 0.0) if (x >= 0.0)
{ {
*iptr = __floorf (x); *iptr = floorf (x);
return __copysignf (x - *iptr, x); return __copysignf (x - *iptr, x);
} }
else else

1
sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_ldbl_opt.h> #include <math_ldbl_opt.h>
#include <shlib-compat.h> #include <shlib-compat.h>

1
sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_ldbl_opt.h> #include <math_ldbl_opt.h>
#include <shlib-compat.h> #include <shlib-compat.h>

1
sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_ldbl_opt.h> #include <math_ldbl_opt.h>
#include <shlib-compat.h> #include <shlib-compat.h>

1
sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_ldbl_opt.h> #include <math_ldbl_opt.h>
#include <shlib-compat.h> #include <shlib-compat.h>

1
sysdeps/riscv/rv64/rvd/s_floor.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library. If not, see License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_private.h> #include <math_private.h>
#include <fenv_private.h> #include <fenv_private.h>

1
sysdeps/riscv/rvf/s_floorf.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library. If not, see License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <math.h> #include <math.h>
#include <math_private.h> #include <math_private.h>
#include <fenv_private.h> #include <fenv_private.h>

1
sysdeps/sparc/sparc64/fpu/multiarch/s_floor.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <sparc-ifunc.h> #include <sparc-ifunc.h>
#include <math.h> #include <math.h>
#include <libm-alias-double.h> #include <libm-alias-double.h>

1
sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <sparc-ifunc.h> #include <sparc-ifunc.h>
#include <math.h> #include <math.h>
#include <libm-alias-float.h> #include <libm-alias-float.h>

24
sysdeps/x86_64/fpu/math_private.h
View File

@ -27,30 +27,6 @@ __rintf (float d)
# endif # endif
return res; return res;
} }
extern __always_inline double
__floor (double d)
{
double res;
# if defined __AVX__ || defined SSE2AVX
asm ("vroundsd $1, %1, %0, %0" : "=x" (res) : "xm" (d));
# else
asm ("roundsd $1, %1, %0" : "=x" (res) : "xm" (d));
# endif
return res;
}
extern __always_inline float
__floorf (float d)
{
float res;
# if defined __AVX__ || defined SSE2AVX
asm ("vroundss $1, %1, %0, %0" : "=x" (res) : "xm" (d));
# else
asm ("roundss $1, %1, %0" : "=x" (res) : "xm" (d));
# endif
return res;
}
#endif /* __SSE4_1__ */ #endif /* __SSE4_1__ */
#endif /* X86_64_MATH_PRIVATE_H */ #endif /* X86_64_MATH_PRIVATE_H */

1
sysdeps/x86_64/fpu/multiarch/s_floor.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <libm-alias-double.h> #include <libm-alias-double.h>
#define floor __redirect_floor #define floor __redirect_floor

1
sysdeps/x86_64/fpu/multiarch/s_floorf.c
View File

@ -16,6 +16,7 @@
License along with the GNU C Library; if not, see License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */ <http://www.gnu.org/licenses/>. */
#define NO_MATH_REDIRECT
#include <libm-alias-float.h> #include <libm-alias-float.h>
#define floorf __redirect_floorf #define floorf __redirect_floorf