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[PATCH] fix sinf(NAN)
sinf(NAN) should not signal invalid fp exception so use isless instead of < where NAN is compared. this makes the sinf tests pass on aarch64. * sysdeps/ieee754/flt-32/s_sinf.c (sinf): Use isless.
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@ -1,3 +1,7 @@
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2017-12-05 Szabolcs Nagy <szabolcs.nagy@arm.com>
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* sysdeps/ieee754/flt-32/s_sinf.c (sinf): Use isless.
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2017-12-05 Joseph Myers <joseph@codesourcery.com>
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* stdlib/strfromd.c: Include <bits/floatn.h>.
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@ -128,7 +128,7 @@ SINF_FUNC (float x)
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double theta = x;
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double abstheta = fabs (theta);
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/* If |x|< Pi/4. */
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if (abstheta < M_PI_4)
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if (isless (abstheta, M_PI_4))
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{
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if (abstheta >= 0x1p-5) /* |x| >= 2^-5. */
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{
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@ -162,8 +162,8 @@ SINF_FUNC (float x)
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}
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else /* |x| >= Pi/4. */
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{
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unsigned int signbit = (x < 0);
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if (abstheta < 9 * M_PI_4) /* |x| < 9*Pi/4. */
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unsigned int signbit = isless (x, 0);
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if (isless (abstheta, 9 * M_PI_4)) /* |x| < 9*Pi/4. */
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{
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/* There are cases where FE_UPWARD rounding mode can
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produce a result of abstheta * inv_PI_4 == 9,
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