diff options
Diffstat (limited to 'sysdeps/powerpc/fpu/e_hypot.c')
| -rw-r--r-- | sysdeps/powerpc/fpu/e_hypot.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/sysdeps/powerpc/fpu/e_hypot.c b/sysdeps/powerpc/fpu/e_hypot.c index da0f2daed3..b55db6d259 100644 --- a/sysdeps/powerpc/fpu/e_hypot.c +++ b/sysdeps/powerpc/fpu/e_hypot.c @@ -1,5 +1,5 @@ /* Pythagorean addition using doubles - Copyright (C) 2011-2016 Free Software Foundation, Inc. + Copyright (C) 2011-2018 Free Software Foundation, Inc. This file is part of the GNU C Library Contributed by Adhemerval Zanella <azanella@br.ibm.com>, 2011 @@ -19,6 +19,7 @@ #include <math.h> #include <math_private.h> +#include <math-underflow.h> #include <stdint.h> static const double two60 = 1.152921504606847e+18; @@ -41,10 +42,11 @@ static const double pdnum = 2.225073858507201e-308; #ifdef _ARCH_PWR7 /* POWER7 isinf and isnan optimization are fast. */ # define TEST_INF_NAN(x, y) \ - if (isinf(x) || isinf(y)) \ + if ((isinf(x) || isinf(y)) \ + && !issignaling (x) && !issignaling (y)) \ return INFINITY; \ if (isnan(x) || isnan(y)) \ - return NAN; + return x + y; # else /* For POWER6 and below isinf/isnan triggers LHS and PLT calls are * costly (especially for POWER6). */ @@ -66,9 +68,10 @@ static const double pdnum = 2.225073858507201e-308; uint32_t ht = hx; hx = hy; hy = ht; \ } \ if (hx >= 0x7ff00000) { \ - if (hx == 0x7ff00000 || hy == 0x7ff00000) \ + if ((hx == 0x7ff00000 || hy == 0x7ff00000) \ + && !issignaling (x) && !issignaling (y)) \ return INFINITY; \ - return NAN; \ + return x + y; \ } \ } while (0) @@ -108,7 +111,7 @@ __ieee754_hypot (double x, double y) { x *= twoM600; y *= twoM600; - return __ieee754_sqrt (x * x + y * y) / twoM600; + return sqrt (x * x + y * y) / twoM600; } if (y < twoM500) { @@ -116,7 +119,7 @@ __ieee754_hypot (double x, double y) { x *= two1022; y *= two1022; - double ret = __ieee754_sqrt (x * x + y * y) / two1022; + double ret = sqrt (x * x + y * y) / two1022; math_check_force_underflow_nonneg (ret); return ret; } @@ -124,9 +127,9 @@ __ieee754_hypot (double x, double y) { x *= two600; y *= two600; - return __ieee754_sqrt (x * x + y * y) / two600; + return sqrt (x * x + y * y) / two600; } } - return __ieee754_sqrt (x * x + y * y); + return sqrt (x * x + y * y); } strong_alias (__ieee754_hypot, __hypot_finite) |