diff options
Diffstat (limited to 'sysdeps/i386/fpu/fenv_private.h')
| -rw-r--r-- | sysdeps/i386/fpu/fenv_private.h | 61 |
1 files changed, 39 insertions, 22 deletions
diff --git a/sysdeps/i386/fpu/fenv_private.h b/sysdeps/i386/fpu/fenv_private.h index e20e1f1662..38fd0b92b5 100644 --- a/sysdeps/i386/fpu/fenv_private.h +++ b/sysdeps/i386/fpu/fenv_private.h @@ -1,36 +1,46 @@ #ifndef FENV_PRIVATE_H #define FENV_PRIVATE_H 1 +#include <bits/floatn.h> #include <fenv.h> #include <fpu_control.h> #ifdef __SSE2_MATH__ -# define math_opt_barrier(x) \ - ({ __typeof(x) __x; \ - if (sizeof (x) <= sizeof (double)) \ - __asm ("" : "=x" (__x) : "0" (x)); \ - else \ - __asm ("" : "=t" (__x) : "0" (x)); \ +# define math_opt_barrier(x) \ + ({ __typeof(x) __x; \ + if (sizeof (x) <= sizeof (double) \ + || __builtin_types_compatible_p (__typeof (x), _Float128)) \ + __asm ("" : "=x" (__x) : "0" (x)); \ + else \ + __asm ("" : "=t" (__x) : "0" (x)); \ __x; }) -# define math_force_eval(x) \ - do { \ - if (sizeof (x) <= sizeof (double)) \ - __asm __volatile ("" : : "x" (x)); \ - else \ - __asm __volatile ("" : : "f" (x)); \ +# define math_force_eval(x) \ + do { \ + if (sizeof (x) <= sizeof (double) \ + || __builtin_types_compatible_p (__typeof (x), _Float128)) \ + __asm __volatile ("" : : "x" (x)); \ + else \ + __asm __volatile ("" : : "f" (x)); \ } while (0) #else -# define math_opt_barrier(x) \ - ({ __typeof (x) __x; \ - __asm ("" : "=t" (__x) : "0" (x)); \ +# define math_opt_barrier(x) \ + ({ __typeof (x) __x; \ + if (__builtin_types_compatible_p (__typeof (x), _Float128)) \ + { \ + __x = (x); \ + __asm ("" : "+m" (__x)); \ + } \ + else \ + __asm ("" : "=t" (__x) : "0" (x)); \ __x; }) -# define math_force_eval(x) \ - do { \ - __typeof (x) __x = (x); \ - if (sizeof (x) <= sizeof (double)) \ - __asm __volatile ("" : : "m" (__x)); \ - else \ - __asm __volatile ("" : : "f" (__x)); \ +# define math_force_eval(x) \ + do { \ + __typeof (x) __x = (x); \ + if (sizeof (x) <= sizeof (double) \ + || __builtin_types_compatible_p (__typeof (x), _Float128)) \ + __asm __volatile ("" : : "m" (__x)); \ + else \ + __asm __volatile ("" : : "f" (__x)); \ } while (0) #endif @@ -322,6 +332,13 @@ libc_feresetround_387 (fenv_t *e) # define libc_feholdsetround_53bit libc_feholdsetround_387_53bit #endif +#ifdef __x86_64__ +/* The SSE rounding mode is used by soft-fp (libgcc and glibc) on + x86_64, so that must be set for float128 computations. */ +# define SET_RESTORE_ROUNDF128(RM) \ + SET_RESTORE_ROUND_GENERIC (RM, libc_feholdsetround_sse, libc_feresetround_sse) +#endif + /* We have support for rounding mode context. */ #define HAVE_RM_CTX 1 |