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| author | Stefan Liebler <stli@linux.ibm.com> | 2019-12-11 15:09:27 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2019-12-11 15:12:21 +0100 |
| commit | 171d23d7cbce7b6f175a6690e625ccf80b647d23 (patch) | |
| tree | 7c2aeb5d6673cd853b9e0426691d9521b1895e64 /sysdeps/ieee754/flt-32/s_ceilf.c | |
| parent | d3a0409ab615e133ff3ea27b492de75a607cff4a (diff) | |
| download | glibc-171d23d7cbce7b6f175a6690e625ccf80b647d23.tar.gz glibc-171d23d7cbce7b6f175a6690e625ccf80b647d23.tar.xz glibc-171d23d7cbce7b6f175a6690e625ccf80b647d23.zip | |
Adjust s_ceilf.c and s_ceill.c regarding code style.
This patch just adjusts the generic implementation regarding code style. No functional change. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/ieee754/flt-32/s_ceilf.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_ceilf.c | 54 |
1 files changed, 33 insertions, 21 deletions
diff --git a/sysdeps/ieee754/flt-32/s_ceilf.c b/sysdeps/ieee754/flt-32/s_ceilf.c index 7d4990f3ff..5c4abfe145 100644 --- a/sysdeps/ieee754/flt-32/s_ceilf.c +++ b/sysdeps/ieee754/flt-32/s_ceilf.c @@ -20,34 +20,46 @@ #include <math-use-builtins.h> float -__ceilf(float x) +__ceilf (float x) { #if USE_CEILF_BUILTIN return __builtin_ceilf (x); #else /* Use generic implementation. */ - int32_t i0,j0; - uint32_t i; + int32_t i0, j0; + uint32_t i; - GET_FLOAT_WORD(i0,x); - j0 = ((i0>>23)&0xff)-0x7f; - if(j0<23) { - if(j0<0) { - /* return 0*sign(x) if |x|<1 */ - if(i0<0) {i0=0x80000000;} - else if(i0!=0) { i0=0x3f800000;} - } else { - i = (0x007fffff)>>j0; - if((i0&i)==0) return x; /* x is integral */ - if(i0>0) i0 += (0x00800000)>>j0; - i0 &= (~i); - } - } else { - if(__builtin_expect(j0==0x80, 0)) return x+x; /* inf or NaN */ - else return x; /* x is integral */ + GET_FLOAT_WORD (i0, x); + j0 = ((i0 >> 23) & 0xff) - 0x7f; + if (j0 < 23) + { + if (j0 < 0) + { + /* return 0 * sign (x) if |x| < 1 */ + if (i0 < 0) + i0 = 0x80000000; + else if (i0 != 0) + i0 = 0x3f800000; } - SET_FLOAT_WORD(x,i0); - return x; + else + { + i = (0x007fffff) >> j0; + if ((i0 & i) == 0) + return x; /* x is integral */ + if (i0 > 0) + i0 += (0x00800000) >> j0; + i0 &= (~i); + } + } + else + { + if (__glibc_unlikely (j0 == 0x80)) + return x + x; /* inf or NaN */ + else + return x; /* x is integral */ + } + SET_FLOAT_WORD (x, i0); + return x; #endif /* ! USE_CEILF_BUILTIN */ } #ifndef __ceilf |