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| author | Richard Henderson <rth@redhat.com> | 1998-08-23 04:10:13 +0000 |
|---|---|---|
| committer | Richard Henderson <rth@redhat.com> | 1998-08-23 04:10:13 +0000 |
| commit | 7d84a06715a3d378eb3ee0ee5d770a5ea4566a87 (patch) | |
| tree | e7af13d76db60df9a34bac32508ff6d5aca81ab2 /sysdeps/alpha/fpu/bits/mathinline.h | |
| parent | ba3904fdf8e5ae26c1a931e09e3c7a3896593d92 (diff) | |
| download | glibc-7d84a06715a3d378eb3ee0ee5d770a5ea4566a87.tar.gz glibc-7d84a06715a3d378eb3ee0ee5d770a5ea4566a87.tar.xz glibc-7d84a06715a3d378eb3ee0ee5d770a5ea4566a87.zip | |
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1998-08-23 Ricahrd Henderson <rth@cygnus.com> * sysdeps/alpha/elf/crtbegin.S: Fix .prologue; no pv used. * sysdeps/alpha/elf/crtend.S: Likewise. * sysdeps/alpha/elf/start.S: Likewise. * sysdeps/unix/sysv/linux/alpha/rt_sigaction.S: Fix .prologue; non-standard pv usage. * sysdeps/unix/sysv/linux/alpha/brk.S: Use jmp macro for relaxation. * sysdeps/unix/sysv/linux/alpha/getitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise. * sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_get_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/ieee_set_fp_control.S: Likewise. * sysdeps/unix/sysv/linux/alpha/select.S: Likewise. * sysdeps/unix/sysv/linux/alpha/setitimer.S: Likewise. * sysdeps/unix/sysv/linux/alpha/settimeofday.S: Likewise. * sysdeps/unix/sysv/linux/alpha/utimes.S: Likewise. * sysdeps/unix/sysv/linux/alpha/wait4.S: Likewise. * sysdeps/alpha/fpu/e_sqrt.c: Use the asm version when the input is a finite non-denormal, deferring to the full IEEE version otherwise. * sysdeps/alpha/fpu/bits/mathinline.h (__floorf, __floor): Early out for -0. Optimize for !_IEEE_FP_INEXACT. * sysdeps/alpha/fpu/s_floor.c: New. * sysdeps/alpha/fpu/s_floorf.c: New. * sysdeps/alpha/fpu/s_ceil.c: New. * sysdeps/alpha/fpu/s_ceilf.c: New.
Diffstat (limited to 'sysdeps/alpha/fpu/bits/mathinline.h')
| -rw-r--r-- | sysdeps/alpha/fpu/bits/mathinline.h | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/sysdeps/alpha/fpu/bits/mathinline.h b/sysdeps/alpha/fpu/bits/mathinline.h index 492d9f18a7..681ea70cf9 100644 --- a/sysdeps/alpha/fpu/bits/mathinline.h +++ b/sysdeps/alpha/fpu/bits/mathinline.h @@ -75,7 +75,7 @@ __inline_copysign(copysign, double) #undef __MATH_INLINE_copysign -#if defined __GNUC__ && (__GNUC__ > 2 || __GNUC__ == 2 && __GNUC_MINOR__ >= 8) +#if defined __GNUC__ && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 8)) __MATH_INLINE float __fabsf (float __x) { return __builtin_fabsf (__x); } __MATH_INLINE float fabsf (float __x) { return __builtin_fabsf (__x); } __MATH_INLINE double __fabs (double __x) { return __builtin_fabs (__x); } @@ -106,7 +106,8 @@ __inline_fabs(fabs, double) __MATH_INLINE float __floorf (float __x) { - if (fabsf (__x) < 16777216.0f) /* 1 << FLT_MANT_DIG */ + /* Check not zero since floor(-0) == -0. */ + if (__x != 0 && fabsf (__x) < 16777216.0f) /* 1 << FLT_MANT_DIG */ { /* Note that Alpha S_Floating is stored in registers in a restricted T_Floating format, so we don't even need to @@ -116,10 +117,13 @@ __floorf (float __x) float __tmp1, __tmp2; __asm ("cvtst/s %3,%2\n\t" +#ifdef _IEEE_FP_INEXACT "cvttq/svim %2,%1\n\t" - "cvtqt/suim %1,%0\n\t" - "trapb" - : "=&f"(__x), "=&f"(__tmp1), "=&f"(__tmp2) +#else + "cvttq/svm %2,%1\n\t" +#endif + "cvtqt/m %1,%0\n\t" + : "=f"(__x), "=&f"(__tmp1), "=&f"(__tmp2) : "f"(__x)); } return __x; @@ -128,13 +132,17 @@ __floorf (float __x) __MATH_INLINE double __floor (double __x) { - if (fabs (__x) < 9007199254740992.0) /* 1 << DBL_MANT_DIG */ + if (__x != 0 && fabs (__x) < 9007199254740992.0) /* 1 << DBL_MANT_DIG */ { double __tmp1; - __asm ("cvttq/svim %2,%1\n\t" - "cvtqt/suim %1,%0\n\t" - "trapb" - : "=&f"(__x), "=&f"(__tmp1) + __asm ( +#ifdef _IEEE_FP_INEXACT + "cvttq/svim %2,%1\n\t" +#else + "cvttq/svm %2,%1\n\t" +#endif + "cvtqt/m %1,%0\n\t" + : "=f"(__x), "=&f"(__tmp1) : "f"(__x)); } return __x; |