Subversion Repositories openrisc_2011-10-31

/*  PR target/12749

  Orgin: Matt Thomas <matt@3am-software.com>

  This used to cause GCC to write out an instruction for i386 when using a L64 host

  which gas could not handle because GCC would write a full 64bit hex string out. */

float fabsf (float);

typedef int __int32_t;

typedef unsigned int __uint32_t;

typedef union

{

  float value;

  __uint32_t word;

} ieee_float_shape_type;

extern float __ieee754_expf (float);

extern float __ieee754_sinhf (float);

static const float one = 1.0, shuge = 1.0e37;

float

__ieee754_sinhf(float x)

{

        float t,w,h;

        __int32_t ix,jx;

        do { ieee_float_shape_type gf_u; gf_u.value = (x); (jx) = gf_u.word; } while (0);

        ix = jx&0x7fffffff;

        if(ix>=0x7f800000) return x+x;

        h = 0.5;

        if (jx<0) h = -h;

        if (ix < 0x41b00000) {

            if (ix<0x31800000)

                if(shuge+x>one) return x;

            t = expm1f(fabsf(x));

            if(ix<0x3f800000) return h*((float)2.0*t-t*t/(t+one));

            return h*(t+t/(t+one));

        }

        if (ix < 0x42b17180) return h*__ieee754_expf(fabsf(x));

        if (ix<=0x42b2d4fc) {

            w = __ieee754_expf((float)0.5*fabsf(x));

            t = h*w;

            return t*w;

        }

        return x*shuge;

}