Replace code that toggles between 53 and 64 bits on i386
class hardware with the ENTERI and RETURNI macros, which are now available in math_private.h. Suggested by: bde Approved by: das (mentor)
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3458a81e65
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=238782
@ -51,23 +51,12 @@ cbrtl(long double x)
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if (k == BIAS + LDBL_MAX_EXP)
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return (x + x);
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#ifdef __i386__
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fp_prec_t oprec;
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oprec = fpgetprec();
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if (oprec != FP_PE)
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fpsetprec(FP_PE);
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#endif
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ENTERI();
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if (k == 0) {
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/* If x = +-0, then cbrt(x) = +-0. */
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if ((u.bits.manh | u.bits.manl) == 0) {
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#ifdef __i386__
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if (oprec != FP_PE)
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fpsetprec(oprec);
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#endif
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return (x);
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}
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if ((u.bits.manh | u.bits.manl) == 0)
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RETURNI(x);
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/* Adjust subnormal numbers. */
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u.e *= 0x1.0p514;
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k = u.bits.exp;
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@ -149,9 +138,5 @@ cbrtl(long double x)
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t=t+t*r; /* error <= 0.5 + 0.5/3 + epsilon */
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t *= v.e;
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#ifdef __i386__
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if (oprec != FP_PE)
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fpsetprec(oprec);
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#endif
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return (t);
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RETURNI(t);
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}
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