diff options
Diffstat (limited to 'sysdeps/ieee754/flt-32/e_j1f.c')
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_j1f.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/sysdeps/ieee754/flt-32/e_j1f.c b/sysdeps/ieee754/flt-32/e_j1f.c index f359a3d9ba..887b5f7d1e 100644 --- a/sysdeps/ieee754/flt-32/e_j1f.c +++ b/sysdeps/ieee754/flt-32/e_j1f.c @@ -16,7 +16,9 @@ #include <errno.h> #include <float.h> #include <math.h> +#include <math-narrow-eval.h> #include <math_private.h> +#include <math-underflow.h> static float ponef(float), qonef(float); @@ -61,10 +63,10 @@ __ieee754_j1f(float x) * j1(x) = 1/sqrt(pi) * (P(1,x)*cc - Q(1,x)*ss) / sqrt(x) * y1(x) = 1/sqrt(pi) * (P(1,x)*ss + Q(1,x)*cc) / sqrt(x) */ - if(ix>0x48000000) z = (invsqrtpi*cc)/__ieee754_sqrtf(y); + if(ix>0x48000000) z = (invsqrtpi*cc)/sqrtf(y); else { u = ponef(y); v = qonef(y); - z = invsqrtpi*(u*cc-v*ss)/__ieee754_sqrtf(y); + z = invsqrtpi*(u*cc-v*ss)/sqrtf(y); } if(hx<0) return -z; else return z; @@ -112,7 +114,7 @@ __ieee754_y1f(float x) /* if Y1(NaN) is NaN, Y1(-inf) is NaN, Y1(inf) is 0 */ if(__builtin_expect(ix>=0x7f800000, 0)) return one/(x+x*x); if(__builtin_expect(ix==0, 0)) - return -HUGE_VALF+x; /* -inf and overflow exception. */ + return -1/zero; /* -inf and divide by zero exception. */ if(__builtin_expect(hx<0, 0)) return zero/(zero*x); if(ix >= 0x40000000) { /* |x| >= 2.0 */ SET_RESTORE_ROUNDF (FE_TONEAREST); @@ -135,10 +137,10 @@ __ieee754_y1f(float x) * sin(x) +- cos(x) = -cos(2x)/(sin(x) -+ cos(x)) * to compute the worse one. */ - if(ix>0x48000000) z = (invsqrtpi*ss)/__ieee754_sqrtf(x); + if(ix>0x48000000) z = (invsqrtpi*ss)/sqrtf(x); else { u = ponef(x); v = qonef(x); - z = invsqrtpi*(u*ss+v*cc)/__ieee754_sqrtf(x); + z = invsqrtpi*(u*ss+v*cc)/sqrtf(x); } return z; } |