Adjust s_ceilf.c and s_ceill.c regarding code style.
authorStefan Liebler <stli@linux.ibm.com>
Wed, 11 Dec 2019 14:09:27 +0000 (15:09 +0100)
committerStefan Liebler <stli@linux.ibm.com>
Wed, 11 Dec 2019 14:12:21 +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_ceilf.c
sysdeps/ieee754/ldbl-128/s_ceill.c

index 7d4990f3ff1bb481cb32275059dc0ca4b969dd99..5c4abfe145c29e25be5b62a961c79c5a16ee4cd2 100644 (file)
 #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
index 02ffa7af2b9765d6c6f49304ff1527a995ac2f55..c5d98e1e376140bdbf9cf782792ec5f5bc15006d 100644 (file)
@@ -13,7 +13,7 @@
  * ====================================================
  */
 
-#if defined(LIBM_SCCS) && !defined(lint)
+#if defined (LIBM_SCCS) && ! defined (lint)
 static char rcsid[] = "$NetBSD: $";
 #endif
 
@@ -30,45 +30,72 @@ static char rcsid[] = "$NetBSD: $";
 #include <libm-alias-ldouble.h>
 #include <math-use-builtins.h>
 
-_Float128 __ceill(_Float128 x)
+_Float128
+__ceill (_Float128 x)
 {
 #if USE_CEILL_BUILTIN
   return __builtin_ceill (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=0x8000000000000000ULL;i1=0;}
-               else if((i0|i1)!=0) { i0=0x3fff000000000000ULL;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 = 0x8000000000000000ULL;
+             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 | i1) != 0)
+           {
+             i0 = 0x3fff000000000000ULL;
+             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_CEILL_BUILTIN  */
 }
 libm_alias_ldouble (__ceil, ceil)