]> git.ipfire.org Git - thirdparty/glibc.git/commitdiff
Adjust s_floorf.c and s_floorl.c regarding code style.
authorStefan Liebler <stli@linux.ibm.com>
Wed, 11 Dec 2019 14:09:26 +0000 (15:09 +0100)
committerStefan Liebler <stli@linux.ibm.com>
Wed, 11 Dec 2019 14:12:20 +0000 (15:12 +0100)
This patch just adjusts the generic implementation regarding code style.
No functional change.

Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
sysdeps/ieee754/flt-32/s_floorf.c
sysdeps/ieee754/ldbl-128/s_floorl.c

index afe02a169394584fa56f600ac8ca982887921fbe..da6c6dfa8ae86129e74dffff2e4391fac3a3c2ec 100644 (file)
 #include <math-use-builtins.h>
 
 float
-__floorf(float x)
+__floorf (float x)
 {
 #if USE_FLOORF_BUILTIN
   return __builtin_floorf (x);
 #else
   /* Use generic implementation.  */
-       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=0;}
-               else if((i0&0x7fffffff)!=0)
-                 { i0=0xbf800000;}
-           } 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 */
+  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 = 0;
+         else if ((i0 & 0x7fffffff) != 0)
+           i0 = 0xbf800000;
        }
-       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_FLOORF_BUILTIN  */
 }
 #ifndef __floorf
index cfe008392a7b7425667725adbc192eca69eacd65..0475120d7e7fae765c5a6bd0886e8f9548670c98 100644 (file)
@@ -30,46 +30,71 @@ static char rcsid[] = "$NetBSD: $";
 #include <libm-alias-ldouble.h>
 #include <math-use-builtins.h>
 
-_Float128 __floorl(_Float128 x)
+_Float128
+__floorl (_Float128 x)
 {
 #if USE_FLOORL_BUILTIN
   return __builtin_floorl (x);
 #else
   /* Use generic implementation.  */
-       int64_t i0,i1,j0;
-       uint64_t i,j;
-       GET_LDOUBLE_WORDS64(i0,i1,x);
-       j0 = ((i0>>48)&0x7fff)-0x3fff;
-       if(j0<48) {
-           if(j0<0) {
-               /* return 0*sign(x) if |x|<1 */
-               if(i0>=0) {i0=i1=0;}
-               else if(((i0&0x7fffffffffffffffLL)|i1)!=0)
-                   { i0=0xbfff000000000000ULL;i1=0;}
-           } else {
-               i = (0x0000ffffffffffffULL)>>j0;
-               if(((i0&i)|i1)==0) return x; /* x is integral */
-               if(i0<0) i0 += (0x0001000000000000LL)>>j0;
-               i0 &= (~i); i1=0;
+  int64_t i0, i1, j0;
+  uint64_t i, j;
+  GET_LDOUBLE_WORDS64 (i0, i1, x);
+  j0 = ((i0 >> 48) & 0x7fff) - 0x3fff;
+  if (j0 < 48)
+    {
+      if (j0 < 0)
+       {
+         /* return 0 * sign (x) if |x| < 1 */
+         if (i0 >= 0)
+           {
+             i0 = i1 = 0;
            }
-       } else if (j0>111) {
-           if(j0==0x4000) return x+x;  /* inf or NaN */
-           else return x;              /* x is integral */
-       } else {
-           i = -1ULL>>(j0-48);
-           if((i1&i)==0) return x;     /* x is integral */
-           if(i0<0) {
-               if(j0==48) i0+=1;
-               else {
-                   j = i1+(1LL<<(112-j0));
-                   if(j<i1) i0 +=1 ;   /* got a carry */
-                   i1=j;
-               }
+         else if (((i0 & 0x7fffffffffffffffLL) | i1) != 0)
+           {
+             i0 = 0xbfff000000000000ULL;
+             i1 = 0;
            }
-           i1 &= (~i);
        }
-       SET_LDOUBLE_WORDS64(x,i0,i1);
-       return x;
+      else
+       {
+         i = (0x0000ffffffffffffULL) >> j0;
+         if (((i0 & i) | i1) == 0)
+           return x;           /* x is integral  */
+         if (i0 < 0)
+           i0 += (0x0001000000000000LL) >> j0;
+         i0 &= (~i);
+         i1 = 0;
+       }
+    }
+  else if (j0 > 111)
+    {
+      if (j0 == 0x4000)
+       return x + x;           /* inf or NaN  */
+      else
+       return x;               /* x is integral  */
+    }
+  else
+    {
+      i = -1ULL >> (j0 - 48);
+      if ((i1 & i) == 0)
+       return x;               /* x is integral  */
+      if (i0 < 0)
+       {
+         if (j0 == 48)
+           i0 += 1;
+         else
+           {
+             j = i1 + (1LL << (112 - j0));
+             if (j < i1)
+               i0 += 1 ;       /* got a carry */
+             i1 = j;
+           }
+       }
+      i1 &= (~i);
+    }
+  SET_LDOUBLE_WORDS64 (x, i0, i1);
+  return x;
 #endif /* ! USE_FLOORL_BUILTIN  */
 }
 libm_alias_ldouble (__floor, floor)