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220622dde5
This patch adds a new macro, libm_alias_finite, to define all _finite symbol. It sets all _finite symbol as compat symbol based on its first version (obtained from the definition at built generated first-versions.h). The <fn>f128_finite symbols were introduced in GLIBC 2.26 and so need special treatment in code that is shared between long double and float128. It is done by adding a list, similar to internal symbol redifinition, on sysdeps/ieee754/float128/float128_private.h. Alpha also needs some tricky changes to ensure we still emit 2 compat symbols for sqrt(f). Passes buildmanyglibc. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* e_hypotf.c -- float version of e_hypot.c.
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* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
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*/
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#include <math.h>
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#include <math_private.h>
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#include <libm-alias-finite.h>
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float
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__ieee754_hypotf(float x, float y)
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{
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double d_x, d_y;
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int32_t ha, hb;
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GET_FLOAT_WORD(ha,x);
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ha &= 0x7fffffff;
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GET_FLOAT_WORD(hb,y);
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hb &= 0x7fffffff;
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if (ha == 0x7f800000 && !issignaling (y))
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return fabsf(x);
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else if (hb == 0x7f800000 && !issignaling (x))
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return fabsf(y);
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else if (ha > 0x7f800000 || hb > 0x7f800000)
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return fabsf(x) * fabsf(y);
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else if (ha == 0)
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return fabsf(y);
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else if (hb == 0)
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return fabsf(x);
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d_x = (double) x;
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d_y = (double) y;
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return (float) sqrt(d_x * d_x + d_y * d_y);
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}
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#ifndef __ieee754_hypotf
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libm_alias_finite (__ieee754_hypotf, __hypotf)
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#endif
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