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| author | Daniel Dunbar <daniel@zuster.org> | 2011-11-16 07:33:00 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2011-11-16 07:33:00 +0000 |
| commit | 8603024a01cfa82ab8dce397f40a2d6f246076e3 (patch) | |
| tree | 522eb83ba6beac8a7f5baecefc1cadddeaff4000 /lib/divsc3.c | |
| parent | 2406dfe472402ed7fa39d8e9ba25dd7865aa015f (diff) | |
| download | compiler-rt-8603024a01cfa82ab8dce397f40a2d6f246076e3.tar.gz compiler-rt-8603024a01cfa82ab8dce397f40a2d6f246076e3.tar.bz2 compiler-rt-8603024a01cfa82ab8dce397f40a2d6f246076e3.tar.xz | |
lib: Starting thinning out the dependency on math.h by using compiler builtins
where available.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@144785 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/divsc3.c')
| -rw-r--r-- | lib/divsc3.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/lib/divsc3.c b/lib/divsc3.c index 50ca81e5..88e2e094 100644 --- a/lib/divsc3.c +++ b/lib/divsc3.c @@ -13,6 +13,7 @@ */ #include "int_lib.h" +#include "int_math.h" #include <math.h> /* Returns: the quotient of (a + ib) / (c + id) */ @@ -22,7 +23,7 @@ __divsc3(float __a, float __b, float __c, float __d) { int __ilogbw = 0; float __logbw = logbf(fmaxf(fabsf(__c), fabsf(__d))); - if (isfinite(__logbw)) + if (crt_isfinite(__logbw)) { __ilogbw = (int)__logbw; __c = scalbnf(__c, -__ilogbw); @@ -32,24 +33,26 @@ __divsc3(float __a, float __b, float __c, float __d) float _Complex z; __real__ z = scalbnf((__a * __c + __b * __d) / __denom, -__ilogbw); __imag__ z = scalbnf((__b * __c - __a * __d) / __denom, -__ilogbw); - if (isnan(__real__ z) && isnan(__imag__ z)) + if (crt_isnan(__real__ z) && crt_isnan(__imag__ z)) { - if ((__denom == 0) && (!isnan(__a) || !isnan(__b))) + if ((__denom == 0) && (!crt_isnan(__a) || !crt_isnan(__b))) { __real__ z = copysignf(INFINITY, __c) * __a; __imag__ z = copysignf(INFINITY, __c) * __b; } - else if ((isinf(__a) || isinf(__b)) && isfinite(__c) && isfinite(__d)) + else if ((crt_isinf(__a) || crt_isinf(__b)) && + crt_isfinite(__c) && crt_isfinite(__d)) { - __a = copysignf(isinf(__a) ? 1 : 0, __a); - __b = copysignf(isinf(__b) ? 1 : 0, __b); + __a = copysignf(crt_isinf(__a) ? 1 : 0, __a); + __b = copysignf(crt_isinf(__b) ? 1 : 0, __b); __real__ z = INFINITY * (__a * __c + __b * __d); __imag__ z = INFINITY * (__b * __c - __a * __d); } - else if (isinf(__logbw) && __logbw > 0 && isfinite(__a) && isfinite(__b)) + else if (crt_isinf(__logbw) && __logbw > 0 && + crt_isfinite(__a) && crt_isfinite(__b)) { - __c = copysignf(isinf(__c) ? 1 : 0, __c); - __d = copysignf(isinf(__d) ? 1 : 0, __d); + __c = copysignf(crt_isinf(__c) ? 1 : 0, __c); + __d = copysignf(crt_isinf(__d) ? 1 : 0, __d); __real__ z = 0 * (__a * __c + __b * __d); __imag__ z = 0 * (__b * __c - __a * __d); } |