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Update.
2001-02-18 Ulrich Drepper <drepper@redhat.com> * math/libm-test.inc (pow_test): Correct expected results for x == +-1. * sysdeps/i386/fpu/e_pow.S: Handle x == +-1 correctly. * sysdeps/i386/fpu/e_powf.S: Likewise. * sysdeps/i386/fpu/e_powl.S: Likewise. * sysdeps/i386/fpu/bits/mathinline.h: Remove pow inline code. * sysdeps/generic/e_exp2l.c: ...this. New file. * sysdeps/i386/fpu/e_exp2.S: ...this. New file. * sysdeps/i386/fpu/e_exp2f.S: ...this. New file. * sysdeps/i386/fpu/e_exp2l.S: ...this. New file. * sysdeps/ieee754/flt-32/e_exp2f.c: ...this. New file. * sysdeps/ieee754/dbl-64/e_exp2.c: ...this. New file. * sysdeps/m68k/fpu/e_exp2.c: ...this. New file. * sysdeps/m68k/fpu/e_exp2f.c: ...this. New file. * sysdeps/m68k/fpu/e_exp2l.c: ...this. New file.
This commit is contained in:
Ulrich Drepper
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27
ChangeLog
27
ChangeLog
@ -1,25 +1,34 @@
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2001-02-18 Ulrich Drepper <drepper@redhat.com>
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* math/libm-test.inc (pow_test): Correct expected results for x == +-1.
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* sysdeps/i386/fpu/e_pow.S: Handle x == +-1 correctly.
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* sysdeps/i386/fpu/e_powf.S: Likewise.
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* sysdeps/i386/fpu/e_powl.S: Likewise.
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* sysdeps/i386/fpu/bits/mathinline.h: Remove pow inline code.
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2001-02-17 Ulrich Drepper <drepper@redhat.com>
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* math/Makefile (libm-calls): It's e_exp2 not s_exp2.
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* sysdeps/generic/s_exp2l.c: Renamed to...
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* sysdeps/generic/s_exp2l.c: ...this. New file.
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* sysdeps/generic/e_exp2l.c: ...this. New file.
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* sysdeps/i386/fpu/s_exp2.S: Renamed to...
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* sysdeps/i386/fpu/s_exp2.S: ...this. New file.
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* sysdeps/i386/fpu/e_exp2.S: ...this. New file.
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* sysdeps/i386/fpu/s_exp2f.S: Renamed to...
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* sysdeps/i386/fpu/s_exp2f.S: ...this. New file.
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* sysdeps/i386/fpu/e_exp2f.S: ...this. New file.
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* sysdeps/i386/fpu/s_exp2l.S: Renamed to...
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* sysdeps/i386/fpu/s_exp2l.S: ...this. New file.
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* sysdeps/i386/fpu/e_exp2l.S: ...this. New file.
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* sysdeps/ieee754/flt-32/s_exp2f.c: Renamed to...
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* sysdeps/ieee754/flt-32/s_exp2f.c: ...this. New file.
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* sysdeps/ieee754/flt-32/e_exp2f.c: ...this. New file.
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* sysdeps/ieee754/dbl-64/s_exp2.c: Renamed to...
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* sysdeps/ieee754/dbl-64/s_exp2.c: ...this. New file.
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* sysdeps/ieee754/dbl-64/e_exp2.c: ...this. New file.
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* sysdeps/m68k/fpu/s_exp2.c: Renamed to...
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* sysdeps/m68k/fpu/s_exp2.c: ...this. New file.
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* sysdeps/m68k/fpu/e_exp2.c: ...this. New file.
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* sysdeps/m68k/fpu/s_exp2f.c: Renamed to...
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* sysdeps/m68k/fpu/s_exp2f.c: ...this. New file.
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* sysdeps/m68k/fpu/e_exp2f.c: ...this. New file.
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* sysdeps/m68k/fpu/s_exp2l.c: Renamed to...
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* sysdeps/m68k/fpu/s_exp2l.c: ...this. New file.
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* sysdeps/m68k/fpu/e_exp2l.c: ...this. New file.
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2001-02-17 Andreas Jaeger <aj@suse.de>
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@ -3468,7 +3468,7 @@ pow_test (void)
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TEST_ff_f (pow, nan_value, nan_value, nan_value);
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TEST_ff_f (pow, 0, nan_value, nan_value);
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TEST_ff_f (pow, 1, nan_value, nan_value);
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TEST_ff_f (pow, 1, nan_value, 1);
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TEST_ff_f (pow, -1, nan_value, nan_value);
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TEST_ff_f (pow, nan_value, 1, nan_value);
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TEST_ff_f (pow, nan_value, -1, nan_value);
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@ -3476,10 +3476,10 @@ pow_test (void)
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/* pow (x, NaN) == NaN. */
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TEST_ff_f (pow, 3.0, nan_value, nan_value);
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TEST_ff_f (pow, 1, plus_infty, nan_value, INVALID_EXCEPTION);
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TEST_ff_f (pow, -1, plus_infty, nan_value, INVALID_EXCEPTION);
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TEST_ff_f (pow, 1, minus_infty, nan_value, INVALID_EXCEPTION);
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TEST_ff_f (pow, -1, minus_infty, nan_value, INVALID_EXCEPTION);
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TEST_ff_f (pow, 1, plus_infty, 1);
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TEST_ff_f (pow, -1, plus_infty, 1);
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TEST_ff_f (pow, 1, minus_infty, 1);
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TEST_ff_f (pow, -1, minus_infty, 1);
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TEST_ff_f (pow, -0.1L, 1.1L, nan_value, INVALID_EXCEPTION);
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TEST_ff_f (pow, -0.1L, -1.1L, nan_value, INVALID_EXCEPTION);
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@ -1,5 +1,5 @@
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/* Inline math functions for i387.
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Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc.
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Copyright (C) 1995,96,97,98,99,2000,2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by John C. Bowman <bowman@math.ualberta.ca>, 1995.
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@ -413,56 +413,6 @@ __inline_mathcodeNP (tan, __x, \
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("fptan" \
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: "=t" (__value2), "=u" (__value) : "0" (__x)); \
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return __value)
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__inline_mathcodeNP2 (pow, __x, __y, \
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register long double __value; \
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register long double __exponent; \
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__extension__ long long int __p = (long long int) __y; \
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if (__x == 0.0) \
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{ \
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if (__y > 0.0) \
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return __y == (double) __p && (__p & 1) != 0 ? __x : 0.0; \
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else if (__y < 0.0) \
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return (__y == (double) __p && (-__p & 1) != 0 \
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? 1.0 / __x : 1.0 / fabs (__x)); \
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} \
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if (__y == (double) __p) \
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{ \
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long double __r = 1.0; \
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if (__p == 0) \
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return 1.0; \
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if (__p < 0) \
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{ \
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__p = -__p; \
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__x = 1.0 / __x; \
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} \
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while (1) \
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{ \
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if (__p & 1) \
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__r *= __x; \
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__p >>= 1; \
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if (__p == 0) \
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return __r; \
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__x *= __x; \
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} \
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/* NOTREACHED */ \
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} \
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__asm __volatile__ \
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("fyl2x" : "=t" (__value) : "0" (__x), "u" (1.0) : "st(1)"); \
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__asm __volatile__ \
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("fmul %%st(1) # y * log2(x)\n\t" \
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"fst %%st(1)\n\t" \
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"frndint # int(y * log2(x))\n\t" \
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"fxch\n\t" \
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"fsub %%st(1) # fract(y * log2(x))\n\t" \
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"f2xm1 # 2^(fract(y * log2(x))) - 1\n\t" \
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: "=t" (__value), "=u" (__exponent) : "0" (__y), "1" (__value)); \
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__value += 1.0; \
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__asm __volatile__ \
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("fscale" \
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: "=t" (__value) : "0" (__value), "u" (__exponent)); \
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return __value)
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#endif /* __FAST_MATH__ */
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@ -1,5 +1,5 @@
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/* ix87 specific implementation of pow function.
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Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
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Copyright (C) 1996, 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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@ -130,7 +130,18 @@ ENTRY(__ieee754_pow)
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orl %edx, %ecx
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jnz 6b
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fstp %st(0) // ST*x
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30: ret
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ret
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/* y is ±NAN */
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30: fldl 4(%esp) // x : y
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fldl MO(one) // 1.0 : x : y
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fucomp %st(1) // x : y
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fnstsw
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sahf
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je 31f
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fxch // y : x
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31: fstp %st(1)
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ret
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.align ALIGNARG(4)
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2: /* y is a real number. */
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@ -189,8 +200,7 @@ ENTRY(__ieee754_pow)
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ret
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.align ALIGNARG(4)
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14: fldl MO(infinity)
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fmull MO(zero) // raise invalid exception
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14: fldl MO(one)
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ret
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.align ALIGNARG(4)
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@ -1,5 +1,5 @@
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/* ix87 specific implementation of pow function.
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Copyright (C) 1996, 1997, 1999 Free Software Foundation, Inc.
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Copyright (C) 1996, 1997, 1999, 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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@ -125,7 +125,18 @@ ENTRY(__ieee754_powf)
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testl %edx, %edx
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jnz 6b
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fstp %st(0) // ST*x
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30: ret
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ret
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/* y is ±NAN */
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30: flds 4(%esp) // x : y
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fldl MO(one) // 1.0 : x : y
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fucomp %st(1) // x : y
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fnstsw
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sahf
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je 31f
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fxch // y : x
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31: fstp %st(1)
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ret
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.align ALIGNARG(4)
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2: /* y is a real number. */
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@ -184,8 +195,7 @@ ENTRY(__ieee754_powf)
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ret
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.align ALIGNARG(4)
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14: fldl MO(infinity)
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fmull MO(zero) // raise invalid exception
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14: fldl MO(one)
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ret
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.align ALIGNARG(4)
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@ -1,5 +1,5 @@
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/* ix87 specific implementation of pow function.
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Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
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Copyright (C) 1996, 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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@ -130,7 +130,18 @@ ENTRY(__ieee754_powl)
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orl %edx, %ecx
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jnz 6b
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fstp %st(0) // ST*x
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30: ret
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ret
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/* y is ±NAN */
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30: fldt 4(%esp) // x : y
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fldl MO(one) // 1.0 : x : y
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fucomp %st(1) // x : y
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fnstsw
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sahf
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je 31f
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fxch // y : x
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31: fstp %st(1)
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ret
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.align ALIGNARG(4)
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2: /* y is a real number. */
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@ -189,8 +200,7 @@ ENTRY(__ieee754_powl)
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ret
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.align ALIGNARG(4)
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14: fldl MO(infinity)
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fmull MO(zero) // raise invalid exception
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14: fldl MO(one)
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ret
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.align ALIGNARG(4)
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