diff options
Diffstat (limited to 'sysdeps/aarch64/fpu/s_lrint.c')
-rw-r--r-- | sysdeps/aarch64/fpu/s_lrint.c | 46 |
1 files changed, 14 insertions, 32 deletions
diff --git a/sysdeps/aarch64/fpu/s_lrint.c b/sysdeps/aarch64/fpu/s_lrint.c index 6ef64e22bf..ee645ad29e 100644 --- a/sysdeps/aarch64/fpu/s_lrint.c +++ b/sysdeps/aarch64/fpu/s_lrint.c @@ -19,38 +19,17 @@ #include <math.h> #include <get-rounding-mode.h> #include <stdint.h> +#include <math_private.h> -#ifndef FUNC -# define FUNC lrint -#endif - -#ifndef ITYPE -# define ITYPE double # define IREG_SIZE 64 -#else -# ifndef IREG_SIZE -# error IREG_SIZE not defined -# endif -#endif -#ifndef OTYPE -# define OTYPE long int # ifdef __ILP32__ # define OREG_SIZE 32 # else # define OREG_SIZE 64 # endif -#else -# ifndef OREG_SIZE -# error OREG_SIZE not defined -# endif -#endif -#if IREG_SIZE == 32 -# define IREGS "s" -#else # define IREGS "d" -#endif #if OREG_SIZE == 32 # define OREGS "w" @@ -58,15 +37,14 @@ # define OREGS "x" #endif -#define __CONCATX(a,b) __CONCAT(a,b) -OTYPE -__CONCATX(__,FUNC) (ITYPE x) +long int +__lrint (double x) { - OTYPE result; - ITYPE temp; #if IREG_SIZE == 64 && OREG_SIZE == 32 + long int result; + if (__builtin_fabs (x) > INT32_MAX) { /* Converting large values to a 32 bit int may cause the frintx/fcvtza @@ -96,10 +74,14 @@ __CONCATX(__,FUNC) (ITYPE x) return result; } #endif - asm ( "frintx" "\t%" IREGS "1, %" IREGS "2\n\t" - "fcvtzs" "\t%" OREGS "0, %" IREGS "1" - : "=r" (result), "=w" (temp) : "w" (x) ); - return result; + + double r = __builtin_rint (x); + + /* Prevent gcc from calling lrint directly when compiled with + -fno-math-errno by inserting a barrier. */ + + math_opt_barrier (r); + return r; } -weak_alias (__CONCATX(__,FUNC), FUNC) +weak_alias (__lrint, lrint) |