diff options
Diffstat (limited to 'lib/divsc3.c')
-rw-r--r-- | lib/divsc3.c | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/lib/divsc3.c b/lib/divsc3.c deleted file mode 100644 index caa0c4075eb3..000000000000 --- a/lib/divsc3.c +++ /dev/null @@ -1,60 +0,0 @@ -/*===-- divsc3.c - Implement __divsc3 -------------------------------------=== - * - * The LLVM Compiler Infrastructure - * - * This file is dual licensed under the MIT and the University of Illinois Open - * Source Licenses. See LICENSE.TXT for details. - * - * ===----------------------------------------------------------------------=== - * - * This file implements __divsc3 for the compiler_rt library. - * - *===----------------------------------------------------------------------=== - */ - -#include "int_lib.h" -#include "int_math.h" - -/* Returns: the quotient of (a + ib) / (c + id) */ - -float _Complex -__divsc3(float __a, float __b, float __c, float __d) -{ - int __ilogbw = 0; - float __logbw = crt_logbf(crt_fmaxf(crt_fabsf(__c), crt_fabsf(__d))); - if (crt_isfinite(__logbw)) - { - __ilogbw = (int)__logbw; - __c = crt_scalbnf(__c, -__ilogbw); - __d = crt_scalbnf(__d, -__ilogbw); - } - float __denom = __c * __c + __d * __d; - float _Complex z; - __real__ z = crt_scalbnf((__a * __c + __b * __d) / __denom, -__ilogbw); - __imag__ z = crt_scalbnf((__b * __c - __a * __d) / __denom, -__ilogbw); - if (crt_isnan(__real__ z) && crt_isnan(__imag__ z)) - { - if ((__denom == 0) && (!crt_isnan(__a) || !crt_isnan(__b))) - { - __real__ z = crt_copysignf(CRT_INFINITY, __c) * __a; - __imag__ z = crt_copysignf(CRT_INFINITY, __c) * __b; - } - else if ((crt_isinf(__a) || crt_isinf(__b)) && - crt_isfinite(__c) && crt_isfinite(__d)) - { - __a = crt_copysignf(crt_isinf(__a) ? 1 : 0, __a); - __b = crt_copysignf(crt_isinf(__b) ? 1 : 0, __b); - __real__ z = CRT_INFINITY * (__a * __c + __b * __d); - __imag__ z = CRT_INFINITY * (__b * __c - __a * __d); - } - else if (crt_isinf(__logbw) && __logbw > 0 && - crt_isfinite(__a) && crt_isfinite(__b)) - { - __c = crt_copysignf(crt_isinf(__c) ? 1 : 0, __c); - __d = crt_copysignf(crt_isinf(__d) ? 1 : 0, __d); - __real__ z = 0 * (__a * __c + __b * __d); - __imag__ z = 0 * (__b * __c - __a * __d); - } - } - return z; -} |