AuroraMiddleware/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2024-11-21 12:30:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Use GCC builtins for llrint functions if desired.

Browse Source 
This patch is using the corresponding GCC builtin for llrintf, llrint,
llrintl and llrintf128 if the USE_FUNCTION_BUILTIN macros are defined to one
in math-use-builtins-function.h.

Co-Authored-By: Xi Ruoyao <xry111@xry111.site>
This commit is contained in:
Xiaolin Tang 2022-11-23 11:44:58 +08:00 committed by caiyinyu
parent e1697a540c
commit a1981ecbfd
6 changed files with 43 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
sysdeps/generic/math-use-builtins-llrint.h Normal file
View File

@ -0,0 +1,4 @@
#define USE_LLRINT_BUILTIN 0
#define USE_LLRINTF_BUILTIN 0
#define USE_LLRINTL_BUILTIN 0
#define USE_LLRINTF128_BUILTIN 0

1
sysdeps/generic/math-use-builtins.h
View File

@ -38,5 +38,6 @@
#include <math-use-builtins-fmin.h>
#include <math-use-builtins-fabs.h>
#include <math-use-builtins-lrint.h>
#include <math-use-builtins-llrint.h>
#endif /* MATH_USE_BUILTINS_H */

18
sysdeps/ieee754/dbl-64/s_llrint.c
View File

@ -25,17 +25,22 @@
#include <math_private.h>
#include <libm-alias-double.h>
#include <fix-fp-int-convert-overflow.h>
static const double two52[2] =
{
4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */
-4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */
};
#include <math-use-builtins.h>
long long int
__llrint (double x)
{
#if USE_LLRINT_BUILTIN
return __builtin_llrint (x);
#else
/* Use generic implementation. */
static const double two52[2] =
{
4.50359962737049600000e+15, /* 0x43300000, 0x00000000 */
-4.50359962737049600000e+15, /* 0xC3300000, 0x00000000 */
};
int32_t j0;
uint32_t i1, i0;
long long int result;
@ -95,6 +100,7 @@ __llrint (double x)
}
return sx ? -result : result;
#endif /* ! USE_LLRINT_BUILTIN */
}
libm_alias_double (__llrint, llrint)

2
sysdeps/ieee754/float128/float128_private.h
View File

@ -163,6 +163,8 @@
#define USE_FMAL_BUILTIN USE_FMAF128_BUILTIN
#undef USE_LRINTL_BUILTIN
#define USE_LRINTL_BUILTIN USE_LRINTF128_BUILTIN
#undef USE_LLRINTL_BUILTIN
#define USE_LLRINTL_BUILTIN USE_LLRINTF128_BUILTIN
/* IEEE function renames. */
#define __ieee754_acoshl __ieee754_acoshf128

18
sysdeps/ieee754/flt-32/s_llrintf.c
View File

@ -25,17 +25,22 @@
#include <math_private.h>
#include <libm-alias-float.h>
#include <fix-fp-int-convert-overflow.h>
static const float two23[2] =
{
8.3886080000e+06, /* 0x4B000000 */
-8.3886080000e+06, /* 0xCB000000 */
};
#include <math-use-builtins.h>
long long int
__llrintf (float x)
{
#if USE_LLRINTF_BUILTIN
return __builtin_llrintf (x);
#else
/* Use generic implementation. */
static const float two23[2] =
{
8.3886080000e+06, /* 0x4B000000 */
-8.3886080000e+06, /* 0xCB000000 */
};
int32_t j0;
uint32_t i0;
float w;
@ -82,6 +87,7 @@ __llrintf (float x)
}
return sx ? -result : result;
#endif /* ! USE_LLRINTF_BUILTIN */
}
libm_alias_float (__llrint, llrint)

17
sysdeps/ieee754/ldbl-128/s_llrintl.c
View File

@ -24,16 +24,22 @@
#include <math_private.h>
#include <libm-alias-ldouble.h>
#include <fix-fp-int-convert-overflow.h>
#include <math-use-builtins.h>
static const _Float128 two112[2] =
{
L(5.19229685853482762853049632922009600E+33), /* 0x406F000000000000, 0 */
L(-5.19229685853482762853049632922009600E+33) /* 0xC06F000000000000, 0 */
};
long long int
__llrintl (_Float128 x)
{
#if USE_LLRINTL_BUILTIN
return __builtin_round (x);
#else
/* Use generic implementation. */
static const _Float128 two112[2] =
{
L(5.19229685853482762853049632922009600E+33), /* 0x406F000000000000, 0 */
L(-5.19229685853482762853049632922009600E+33) /* 0xC06F000000000000, 0 */
};
int32_t j0;
uint64_t i0,i1;
_Float128 w;
@ -102,6 +108,7 @@ __llrintl (_Float128 x)
}
return sx ? -result : result;
#endif /* ! USE_LLRINTL_BUILTIN */
}
libm_alias_ldouble (__llrint, llrint)