From 6d3bf1993190edc502d01e8ca42c4482b20a5b6c Mon Sep 17 00:00:00 2001 From: Liubov Dmitrieva Date: Tue, 25 Sep 2012 20:41:17 +0200 Subject: Fix wrong ussage of sincos for subnormal arguments --- math/s_csinf.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'math/s_csinf.c') diff --git a/math/s_csinf.c b/math/s_csinf.c index c1d6a4f28e..d53f943fa7 100644 --- a/math/s_csinf.c +++ b/math/s_csinf.c @@ -42,7 +42,15 @@ __csinf (__complex__ float x) const int t = (int) ((FLT_MAX_EXP - 1) * M_LN2); float sinix, cosix; - __sincosf (__real__ x, &sinix, &cosix); + if (__builtin_expect (rcls != FP_SUBNORMAL, 1)) + { + __sincosf (__real__ x, &sinix, &cosix); + } + else + { + sinix = __real__ x; + cosix = 1.0f; + } if (fabsf (__imag__ x) > t) { @@ -115,7 +123,15 @@ __csinf (__complex__ float x) /* Real part is finite. */ float sinix, cosix; - __sincosf (__real__ x, &sinix, &cosix); + if (__builtin_expect (rcls != FP_SUBNORMAL, 1)) + { + __sincosf (__real__ x, &sinix, &cosix); + } + else + { + sinix = __real__ x; + cosix = 1.0f; + } __real__ retval = __copysignf (HUGE_VALF, sinix); __imag__ retval = __copysignf (HUGE_VALF, cosix); -- cgit v1.2.1