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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2015-05-15 10:53:55 +0000 |
|---|---|---|
| committer | Wilco Dijkstra <wdijkstr@arm.com> | 2015-05-15 11:04:40 +0000 |
| commit | 0e9be4db8f655d3dc006c5b101f15a5912a5846f (patch) | |
| tree | b03088c533aab59ee41220bd469433d2a2abb527 /sysdeps/ieee754/dbl-64/e_pow.c | |
| parent | fbc68f03b0e56db6a07d789fd403eb79d726fe96 (diff) | |
| download | glibc-0e9be4db8f655d3dc006c5b101f15a5912a5846f.tar.gz glibc-0e9be4db8f655d3dc006c5b101f15a5912a5846f.tar.xz glibc-0e9be4db8f655d3dc006c5b101f15a5912a5846f.zip | |
Remove various ABS macros and replace uses with fabs (or in one case abs)
which is more efficient on all targets.
Diffstat (limited to 'sysdeps/ieee754/dbl-64/e_pow.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/e_pow.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/sysdeps/ieee754/dbl-64/e_pow.c b/sysdeps/ieee754/dbl-64/e_pow.c index ba932f4e24..8a1f72f1fa 100644 --- a/sysdeps/ieee754/dbl-64/e_pow.c +++ b/sysdeps/ieee754/dbl-64/e_pow.c @@ -97,7 +97,7 @@ __ieee754_pow (double x, double y) /* Avoid internal underflow for tiny y. The exact value of y does not matter if |y| <= 2**-64. */ - if (ABS (y) < 0x1p-64) + if (fabs (y) < 0x1p-64) y = y < 0 ? -0x1p-64 : 0x1p-64; z = log1 (x, &aa, &error); /* x^y =e^(y log (X)) */ t = y * CN; @@ -110,7 +110,7 @@ __ieee754_pow (double x, double y) aa = y2 * a1 + y * a2; a1 = a + aa; a2 = (a - a1) + aa; - error = error * ABS (y); + error = error * fabs (y); t = __exp1 (a1, a2, 1.9e16 * error); /* return -10 or 0 if wasn't computed exactly */ retval = (t > 0) ? t : power1 (x, y); } @@ -127,7 +127,7 @@ __ieee754_pow (double x, double y) if (((v.i[HIGH_HALF] & 0x7fffffff) == 0x7ff00000 && v.i[LOW_HALF] != 0) || (v.i[HIGH_HALF] & 0x7fffffff) > 0x7ff00000) /* NaN */ return y; - if (ABS (y) > 1.0e20) + if (fabs (y) > 1.0e20) return (y > 0) ? 0 : 1.0 / 0.0; k = checkint (y); if (k == -1) @@ -232,7 +232,7 @@ power1 (double x, double y) aa = ((y1 * a1 - a) + y1 * a2 + y2 * a1) + y2 * a2 + aa * y; a1 = a + aa; a2 = (a - a1) + aa; - error = error * ABS (y); + error = error * fabs (y); t = __exp1 (a1, a2, 1.9e16 * error); return (t >= 0) ? t : __slowpow (x, y, z); } @@ -292,7 +292,7 @@ log1 (double x, double *delta, double *error) * (r7 + t * r8))))) - 0.5 * t2 * (t + t1)); res = e1 + e2; - *error = 1.0e-21 * ABS (t); + *error = 1.0e-21 * fabs (t); *delta = (e1 - res) + e2; return res; } /* |x-1| < 1.5*2**-10 */ @@ -398,7 +398,7 @@ my_log2 (double x, double *delta, double *error) e2 = ((((t - e1) + z) + zz) + t * t * t * (ss3 + t * (s4 + t * (s5 + t * (s6 + t * (s7 + t * s8)))))); res = e1 + e2; - *error = 1.0e-25 * ABS (t); + *error = 1.0e-25 * fabs (t); *delta = (e1 - res) + e2; return res; } |