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author | Ulrich Drepper <drepper@redhat.com> | 1998-11-23 12:54:51 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1998-11-23 12:54:51 +0000 |
commit | 33127459680e76c8d54ea46d4af24a672d8a1278 (patch) | |
tree | acc1e276edd9ae07787a262b90552275cec91943 /sysdeps/i386/fpu/bits | |
parent | a42134a70be89e902efa6dfd1484e21aa040acb0 (diff) | |
download | glibc-33127459680e76c8d54ea46d4af24a672d8a1278.tar.gz glibc-33127459680e76c8d54ea46d4af24a672d8a1278.tar.xz glibc-33127459680e76c8d54ea46d4af24a672d8a1278.zip |
Update.
1998-11-23 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/fpu/bits/mathinline.h: Add optimizations for lrint and llrint.
Diffstat (limited to 'sysdeps/i386/fpu/bits')
-rw-r--r-- | sysdeps/i386/fpu/bits/mathinline.h | 49 |
1 files changed, 48 insertions, 1 deletions
diff --git a/sysdeps/i386/fpu/bits/mathinline.h b/sysdeps/i386/fpu/bits/mathinline.h index 91dce771ab..463d481ce7 100644 --- a/sysdeps/i386/fpu/bits/mathinline.h +++ b/sysdeps/i386/fpu/bits/mathinline.h @@ -565,6 +565,52 @@ __inline_mathcode3 (fma, __x, __y, __z, return (__x * __y) + __z) __inline_mathop(rint, "frndint") +#define __lrint_code \ + long int __lrintres; \ + __asm__ __volatile__ \ + ("fistpl %0" \ + : "=m" (__lrintres) : "t" (__x) : "st"); \ + return __lrintres +__MATH_INLINE long int +lrintf (float __x) +{ + __lrint_code; +} +__MATH_INLINE long int +lrint (double __x) +{ + __lrint_code; +} +__MATH_INLINE long int +lrintl (long double __x) +{ + __lrint_code; +} +#undef __lrint_code + +#define __llrint_code \ + long long int __llrintres; \ + __asm__ __volatile__ \ + ("fistpll %0" \ + : "=m" (__llrintres) : "t" (__x) : "st"); \ + return __llrintres +__MATH_INLINE long long int +llrintf (float __x) +{ + __llrint_code; +} +__MATH_INLINE long long int +llrint (double __x) +{ + __llrint_code; +} +__MATH_INLINE long long int +llrintl (long double __x) +{ + __llrint_code; +} +#undef __llrint_code + #endif @@ -572,12 +618,13 @@ __inline_mathop(rint, "frndint") __inline_mathcode2 (drem, __x, __y, \ register double __value; \ + register int __clobbered; \ __asm __volatile__ \ ("1: fprem1\n\t" \ "fstsw %%ax\n\t" \ "sahf\n\t" \ "jp 1b" \ - : "=t" (__value) : "0" (__x), "u" (__y) : "ax", "cc"); \ + : "=t" (__value), "=&a" (__clobbered) : "0" (__x), "u" (__y) : "cc"); \ return __value) |