Use floor functions not __floor functions in glibc libm.

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

View File

@ -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>
* elf/Makefile (modules-names-tests): New variable.

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

@ -33,7 +33,7 @@ __tgamma(double x)
&& _LIB_VERSION != _IEEE_) {
if (x == 0.0)
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 */
else if (y == 0)
__set_errno (ERANGE); /* tgamma underflow */

View File

@ -41,7 +41,7 @@ M_DECL_FUNC (__tgamma) (FLOAT x)
if (x == 0)
/* Pole error: tgamma(x=0). */
__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). */
__set_errno (EDOM);
else

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@ -32,7 +32,7 @@ __tgammaf(float x)
if (x == (float)0.0)
/* tgammaf pole */
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 */
return __kernel_standard_f(x, x, 141);
else if (y == 0)

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@ -36,7 +36,7 @@ __tgammal(long double x)
&& _LIB_VERSION != _IEEE_) {
if(x==0.0)
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 */
else if (y == 0)
__set_errno (ERANGE); /* tgamma underflow */

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

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

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@ -168,10 +168,10 @@ sin_pi(double x)
* argument reduction, make sure inexact flag not raised if input
* is an integer
*/
z = __floor(y);
z = floor(y);
if(z!=y) { /* inexact anyway */
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);
} else {
if(ix>=0x43400000) {

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@ -196,7 +196,7 @@ recompute:
/* compute n */
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;
z -= (double) n;
ih = 0;

View File

@ -282,7 +282,7 @@ __lgamma_neg (double x, int *signgamp)
{
/* Determine the half-integer region X lies in, handle exact
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)
return 1.0 / 0.0;
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. */
if (i < 2)
{
int j = __floor (-8 * x) - 16;
int j = floor (-8 * x) - 16;
double xm = (-33 - 2 * j) * 0.0625;
double x_adj = x - xm;
size_t deg = poly_deg[j];

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

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

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

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

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@ -197,7 +197,7 @@ __lgamma_negf (float x, int *signgamp)
{
/* Determine the half-integer region X lies in, handle exact
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)
return 1.0f / 0.0f;
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. */
if (i < 2)
{
int j = __floorf (-8 * x) - 16;
int j = floorf (-8 * x) - 16;
float xm = (-33 - 2 * j) * 0.0625f;
float x_adj = x - xm;
size_t deg = poly_deg[j];

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

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

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

View File

@ -449,7 +449,7 @@ __lgamma_negl (_Float128 x, int *signgamp)
{
/* Determine the half-integer region X lies in, handle exact
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)
return L(1.0) / L(0.0);
_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. */
if (i < 2)
{
int j = __floorl (-8 * x) - 16;
int j = floorl (-8 * x) - 16;
_Float128 xm = (-33 - 2 * j) * L(0.0625);
_Float128 x_adj = x - xm;
size_t deg = poly_deg[j];

View File

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

View File

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

View File

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

View File

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

View File

@ -430,7 +430,7 @@ __lgamma_negl (long double x, int *signgamp)
{
/* Determine the half-integer region X lies in, handle exact
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)
return 1.0L / 0.0L;
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. */
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 x_adj = x - xm;
size_t deg = poly_deg[j];

View File

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

View File

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

View File

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

View File

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

View File

@ -316,7 +316,7 @@ __lgamma_negl (long double x, int *signgamp)
{
/* Determine the half-integer region X lies in, handle exact
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)
return 1.0L / 0.0L;
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. */
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 x_adj = x - xm;
size_t deg = poly_deg[j];

View File

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

View File

@ -97,26 +97,6 @@ __ieee754_sqrtf128 (_Float128 __x)
__z; })
# 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 /* _PPC_MATH_PRIVATE_H_ */

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

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

View File

@ -27,30 +27,6 @@ __rintf (float d)
# endif
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 /* X86_64_MATH_PRIVATE_H */

View File

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

View File

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