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alpha: Use dynamic rounding with sqrt insn
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@ -1,5 +1,10 @@
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2012-05-30 Richard Henderson <rth@twiddle.net>
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* sysdeps/alpha/alphaev6/fpu/e_sqrt.S: Use dynamic rounding.
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* sysdeps/alpha/alphaev6/fpu/e_sqrtf.S: Likewise.
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* sysdeps/alpha/fpu/math_private.h (__ieee754_sqrt): New.
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(__ieee754_sqrtf): New.
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* sysdeps/unix/sysv/linux/alpha/nptl/pthread_once.c: Replace
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_internal alias by hidden_def.
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@ -1,4 +1,4 @@
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/* Copyright (C) 2000 Free Software Foundation, Inc.
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/* Copyright (C) 2000-2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -33,9 +33,9 @@ ENTRY(__ieee754_sqrt)
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.align 4
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#ifdef _IEEE_FP_INEXACT
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sqrtt/sui $f16, $f0
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sqrtt/suid $f16, $f0
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#else
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sqrtt/su $f16, $f0
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sqrtt/sud $f16, $f0
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#endif
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ret
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nop
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@ -1,4 +1,4 @@
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/* Copyright (C) 2000 Free Software Foundation, Inc.
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/* Copyright (C) 2000-2012 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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@ -33,9 +33,9 @@ ENTRY(__ieee754_sqrtf)
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.align 4
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#ifdef _IEEE_FP_INEXACT
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sqrts/sui $f16, $f0
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sqrts/suid $f16, $f0
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#else
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sqrts/su $f16, $f0
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sqrts/sud $f16, $f0
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#endif
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ret
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nop
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@ -18,4 +18,30 @@
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#include_next <math_private.h>
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#ifdef __alpha_fix__
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extern __always_inline double
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__ieee754_sqrt (double d)
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{
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double ret;
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# ifdef _IEEE_FP_INEXACT
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asm ("sqrtt/suid %1,%0" : "=f"(ret) : "f"(d));
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# else
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asm ("sqrtt/sud %1,%0" : "=f"(ret) : "f"(d));
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# endif
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return ret;
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}
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extern __always_inline float
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__ieee754_sqrtf (float d)
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{
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float ret;
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# ifdef _IEEE_FP_INEXACT
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asm ("sqrts/suid %1,%0" : "=f"(ret) : "f"(d));
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# else
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asm ("sqrts/sud %1,%0" : "=f"(ret) : "f"(d));
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# endif
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return ret;
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}
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#endif /* FIX */
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#endif /* ALPHA_MATH_PRIVATE_H */
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