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11210 libm should be cstyle(1ONBLD) clean
@@ -20,10 +20,11 @@
*/
/*
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
+
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
@@ -34,16 +35,16 @@
#endif
#include "libm.h"
#if defined(__sparc)
-
#include "fma.h"
#include "fenv_inlines.h"
long long
-llrintl(long double x) {
+llrintl(long double x)
+{
union {
unsigned i[4];
long double q;
} xx;
union {
@@ -52,10 +53,11 @@
} zz;
union {
unsigned i;
float f;
} tt;
+
unsigned int hx, sx, frac, fsr;
int rm, j;
volatile float dummy;
xx.q = x;
@@ -64,13 +66,14 @@
/* handle trivial cases */
if (hx > 0x403e0000) { /* |x| > 2^63 + ... or x is nan */
/* convert an out-of-range float */
tt.i = sx | 0x7f000000;
- return ((long long) tt.f);
- } else if ((hx | xx.i[1] | xx.i[2] | xx.i[3]) == 0) /* x is zero */
+ return ((long long)tt.f);
+ } else if ((hx | xx.i[1] | xx.i[2] | xx.i[3]) == 0) { /* x is zero */
return (0LL);
+ }
/* get the rounding mode */
__fenv_getfsr32(&fsr);
rm = fsr >> 30;
@@ -80,35 +83,41 @@
/* handle |x| < 1 */
if (hx < 0x3fff0000) {
dummy = 1.0e30f; /* x is nonzero, so raise inexact */
dummy += 1.0e-30f;
- if (rm == FSR_RP || (rm == FSR_RN && (hx >= 0x3ffe0000 &&
- ((hx & 0xffff) | xx.i[1] | xx.i[2] | xx.i[3]))))
+
+ if (rm == FSR_RP || (rm == FSR_RN && (hx >= 0x3ffe0000 && ((hx &
+ 0xffff) | xx.i[1] | xx.i[2] | xx.i[3]))))
return (sx ? -1LL : 1LL);
+
return (0LL);
}
/* extract the integer and fractional parts of x */
j = 0x406f - (hx >> 16);
xx.i[0] = 0x10000 | (xx.i[0] & 0xffff);
+
if (j >= 96) {
zz.i[0] = 0;
zz.i[1] = xx.i[0] >> (j - 96);
frac = ((xx.i[0] << 1) << (127 - j)) | (xx.i[1] >> (j - 96));
+
if (((xx.i[1] << 1) << (127 - j)) | xx.i[2] | xx.i[3])
frac |= 1;
} else if (j >= 64) {
zz.i[0] = xx.i[0] >> (j - 64);
zz.i[1] = ((xx.i[0] << 1) << (95 - j)) | (xx.i[1] >> (j - 64));
frac = ((xx.i[1] << 1) << (95 - j)) | (xx.i[2] >> (j - 64));
+
if (((xx.i[2] << 1) << (95 - j)) | xx.i[3])
frac |= 1;
} else {
zz.i[0] = ((xx.i[0] << 1) << (63 - j)) | (xx.i[1] >> (j - 32));
zz.i[1] = ((xx.i[1] << 1) << (63 - j)) | (xx.i[2] >> (j - 32));
frac = ((xx.i[2] << 1) << (63 - j)) | (xx.i[3] >> (j - 32));
+
if ((xx.i[3] << 1) << (63 - j))
frac |= 1;
}
/* round */
@@ -120,11 +129,11 @@
/* check for result out of range (note that z is |x| at this point) */
if (zz.i[0] > 0x80000000u || (zz.i[0] == 0x80000000 && (zz.i[1] ||
!sx))) {
tt.i = sx | 0x7f000000;
- return ((long long) tt.f);
+ return ((long long)tt.f);
}
/* raise inexact if need be */
if (frac) {
dummy = 1.0e30F;
@@ -133,27 +142,31 @@
/* negate result if need be */
if (sx) {
zz.i[0] = ~zz.i[0];
zz.i[1] = -zz.i[1];
+
if (zz.i[1] == 0)
zz.i[0]++;
}
+
return (zz.l);
}
#elif defined(__x86)
long long
-llrintl(long double x) {
+llrintl(long double x)
+{
/*
* Note: The following code works on x86 (in the default rounding
* precision mode), but one ought to just use the fistpll instruction
* instead.
*/
union {
unsigned i[3];
long double e;
} xx, yy;
+
int ex;
xx.e = x;
ex = xx.i[2] & 0x7fff;
@@ -164,10 +177,10 @@
yy.i[0] = 0;
x = (x + yy.e) - yy.e;
}
/* now x is nan, inf, or integral */
- return ((long long) x);
+ return ((long long)x);
}
#else
#error Unknown architecture
#endif