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Fix i386 exp10 missing underflows (bug 18966).
On i386, the double version of exp10 can miss underflow exceptions if the result is in the subnormal range for double but the last 11 bits of the 64-bit extended-precision mantissa happen to be zero. This patch forces the exception in a similar way to previous fixes. As with the exp2 and exp fixes, the exp10f changes may in fact not be needed to ensure underflow exceptions, but are included for consistency and to fix the exp10 part of bug 18875 by ensuring that excess range and precision is removed from underflowing return values. Tested for x86_64 and x86. [BZ #18875] [BZ #18966] * sysdeps/i386/fpu/e_exp10.S (dbl_min): New object. (MO): New macro. (__ieee754_exp10): For small results, force underflow exception and remove excess range and precision from return value. * sysdeps/i386/fpu/e_exp10f.S (flt_min): New object. (MO): New macro. (__ieee754_exp10f): For small results, force underflow exception and remove excess range and precision from return value. * math/auto-libm-test-in: Add more tests of exp10. * math/auto-libm-test-out: Regenerated.
This commit is contained in:
Joseph Myers
parent
333ceaa54b
commit
828bf6828b
15
ChangeLog
15
ChangeLog
@ -1,3 +1,18 @@
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2015-09-15 Joseph Myers <joseph@codesourcery.com>
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[BZ #18875]
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[BZ #18966]
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* sysdeps/i386/fpu/e_exp10.S (dbl_min): New object.
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(MO): New macro.
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(__ieee754_exp10): For small results, force underflow exception
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and remove excess range and precision from return value.
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* sysdeps/i386/fpu/e_exp10f.S (flt_min): New object.
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(MO): New macro.
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(__ieee754_exp10f): For small results, force underflow exception
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and remove excess range and precision from return value.
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* math/auto-libm-test-in: Add more tests of exp10.
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* math/auto-libm-test-out: Regenerated.
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2015-09-14 Joseph Myers <joseph@codesourcery.com>
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[BZ #18875]
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3
NEWS
3
NEWS
@ -13,7 +13,8 @@ Version 2.23
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16521, 16734, 16973, 16985, 17787, 17905, 18084, 18086, 18240, 18265,
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18370, 18421, 18480, 18525, 18610, 18618, 18647, 18661, 18674, 18675,
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18681, 18757, 18778, 18781, 18787, 18789, 18790, 18795, 18796, 18820,
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18823, 18824, 18863, 18870, 18873, 18887, 18921, 18952, 18961.
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18823, 18824, 18863, 18870, 18873, 18875, 18887, 18921, 18952, 18961,
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18966.
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* The obsolete header <regexp.h> has been removed. Programs that require
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this header must be updated to use <regex.h> instead.
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@ -1458,6 +1458,9 @@ exp10 -max
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exp10 0.75
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# GCC bug 59666: results on directed rounding may be incorrect.
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exp10 0x1.348e45573a1dd72cp+8 xfail-rounding:ldbl-128ibm
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exp10 -0x1.33aa03p+8
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exp10 -0x1.33ad17p+8
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exp10 -0x1.33afcap+8
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exp10 0x1p-10
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exp10 -0x1p-10
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exp10 0x1p-20
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@ -116962,6 +116962,169 @@ exp10 0x1.348e45573a1dd72cp+8 xfail-rounding:ldbl-128ibm
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= exp10 tonearest ldbl-128ibm 0x1.348e45573a1dd72cp+8L : plus_infty : inexact-ok overflow errno-erange
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= exp10 towardzero ldbl-128ibm 0x1.348e45573a1dd72cp+8L : 0xf.ffffffffffffbffffffffffffcp+1020L : xfail:ldbl-128ibm inexact-ok overflow errno-erange-ok
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= exp10 upward ldbl-128ibm 0x1.348e45573a1dd72cp+8L : plus_infty : xfail:ldbl-128ibm inexact-ok overflow errno-erange
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exp10 -0x1.33aa03p+8
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= exp10 downward flt-32 -0x1.33aa02p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 tonearest flt-32 -0x1.33aa02p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 towardzero flt-32 -0x1.33aa02p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 upward flt-32 -0x1.33aa02p+8f : 0x8p-152f : inexact-ok underflow errno-erange-ok
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= exp10 downward dbl-64 -0x1.33aa02p+8 : 0x3.e5625e7a42198p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 tonearest dbl-64 -0x1.33aa02p+8 : 0x3.e5625e7a4219cp-1024 : inexact-ok underflow errno-erange-ok
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= exp10 towardzero dbl-64 -0x1.33aa02p+8 : 0x3.e5625e7a42198p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 upward dbl-64 -0x1.33aa02p+8 : 0x3.e5625e7a4219cp-1024 : inexact-ok underflow errno-erange-ok
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= exp10 downward ldbl-96-intel -0x1.33aa02p+8L : 0x3.e5625e7a4219b1fp-1024L : inexact-ok
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= exp10 tonearest ldbl-96-intel -0x1.33aa02p+8L : 0x3.e5625e7a4219b1f4p-1024L : inexact-ok
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= exp10 towardzero ldbl-96-intel -0x1.33aa02p+8L : 0x3.e5625e7a4219b1fp-1024L : inexact-ok
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= exp10 upward ldbl-96-intel -0x1.33aa02p+8L : 0x3.e5625e7a4219b1f4p-1024L : inexact-ok
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= exp10 downward ldbl-96-m68k -0x1.33aa02p+8L : 0x3.e5625e7a4219b1fp-1024L : inexact-ok
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= exp10 tonearest ldbl-96-m68k -0x1.33aa02p+8L : 0x3.e5625e7a4219b1f4p-1024L : inexact-ok
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= exp10 towardzero ldbl-96-m68k -0x1.33aa02p+8L : 0x3.e5625e7a4219b1fp-1024L : inexact-ok
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= exp10 upward ldbl-96-m68k -0x1.33aa02p+8L : 0x3.e5625e7a4219b1f4p-1024L : inexact-ok
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= exp10 downward ldbl-128 -0x1.33aa02p+8L : 0x3.e5625e7a4219b1f23b7f41e1933cp-1024L : inexact-ok
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= exp10 tonearest ldbl-128 -0x1.33aa02p+8L : 0x3.e5625e7a4219b1f23b7f41e1933ep-1024L : inexact-ok
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= exp10 towardzero ldbl-128 -0x1.33aa02p+8L : 0x3.e5625e7a4219b1f23b7f41e1933cp-1024L : inexact-ok
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= exp10 upward ldbl-128 -0x1.33aa02p+8L : 0x3.e5625e7a4219b1f23b7f41e1933ep-1024L : inexact-ok
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= exp10 downward ldbl-128ibm -0x1.33aa02p+8L : 0x3.e5625e7a42198p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 tonearest ldbl-128ibm -0x1.33aa02p+8L : 0x3.e5625e7a4219cp-1024L : inexact-ok underflow errno-erange-ok
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= exp10 towardzero ldbl-128ibm -0x1.33aa02p+8L : 0x3.e5625e7a42198p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 upward ldbl-128ibm -0x1.33aa02p+8L : 0x3.e5625e7a4219cp-1024L : inexact-ok underflow errno-erange-ok
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= exp10 downward flt-32 -0x1.33aa04p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 tonearest flt-32 -0x1.33aa04p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 towardzero flt-32 -0x1.33aa04p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 upward flt-32 -0x1.33aa04p+8f : 0x8p-152f : inexact-ok underflow errno-erange-ok
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= exp10 downward dbl-64 -0x1.33aa04p+8 : 0x3.e5506d83c44ecp-1024 : inexact-ok underflow errno-erange-ok
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= exp10 tonearest dbl-64 -0x1.33aa04p+8 : 0x3.e5506d83c44fp-1024 : inexact-ok underflow errno-erange-ok
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= exp10 towardzero dbl-64 -0x1.33aa04p+8 : 0x3.e5506d83c44ecp-1024 : inexact-ok underflow errno-erange-ok
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= exp10 upward dbl-64 -0x1.33aa04p+8 : 0x3.e5506d83c44fp-1024 : inexact-ok underflow errno-erange-ok
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= exp10 downward ldbl-96-intel -0x1.33aa04p+8L : 0x3.e5506d83c44ee174p-1024L : inexact-ok
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= exp10 tonearest ldbl-96-intel -0x1.33aa04p+8L : 0x3.e5506d83c44ee174p-1024L : inexact-ok
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= exp10 towardzero ldbl-96-intel -0x1.33aa04p+8L : 0x3.e5506d83c44ee174p-1024L : inexact-ok
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= exp10 upward ldbl-96-intel -0x1.33aa04p+8L : 0x3.e5506d83c44ee178p-1024L : inexact-ok
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= exp10 downward ldbl-96-m68k -0x1.33aa04p+8L : 0x3.e5506d83c44ee174p-1024L : inexact-ok
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= exp10 tonearest ldbl-96-m68k -0x1.33aa04p+8L : 0x3.e5506d83c44ee174p-1024L : inexact-ok
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= exp10 towardzero ldbl-96-m68k -0x1.33aa04p+8L : 0x3.e5506d83c44ee174p-1024L : inexact-ok
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= exp10 upward ldbl-96-m68k -0x1.33aa04p+8L : 0x3.e5506d83c44ee178p-1024L : inexact-ok
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= exp10 downward ldbl-128 -0x1.33aa04p+8L : 0x3.e5506d83c44ee174a1cd22369ecep-1024L : inexact-ok
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= exp10 tonearest ldbl-128 -0x1.33aa04p+8L : 0x3.e5506d83c44ee174a1cd22369ecep-1024L : inexact-ok
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= exp10 towardzero ldbl-128 -0x1.33aa04p+8L : 0x3.e5506d83c44ee174a1cd22369ecep-1024L : inexact-ok
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= exp10 upward ldbl-128 -0x1.33aa04p+8L : 0x3.e5506d83c44ee174a1cd22369edp-1024L : inexact-ok
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= exp10 downward ldbl-128ibm -0x1.33aa04p+8L : 0x3.e5506d83c44ecp-1024L : inexact-ok underflow errno-erange-ok
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= exp10 tonearest ldbl-128ibm -0x1.33aa04p+8L : 0x3.e5506d83c44fp-1024L : inexact-ok underflow errno-erange-ok
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= exp10 towardzero ldbl-128ibm -0x1.33aa04p+8L : 0x3.e5506d83c44ecp-1024L : inexact-ok underflow errno-erange-ok
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= exp10 upward ldbl-128ibm -0x1.33aa04p+8L : 0x3.e5506d83c44fp-1024L : inexact-ok underflow errno-erange-ok
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= exp10 downward dbl-64 -0x1.33aa03p+8 : 0x3.e55965f4af484p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 tonearest dbl-64 -0x1.33aa03p+8 : 0x3.e55965f4af484p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 towardzero dbl-64 -0x1.33aa03p+8 : 0x3.e55965f4af484p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 upward dbl-64 -0x1.33aa03p+8 : 0x3.e55965f4af488p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 downward ldbl-96-intel -0x1.33aa03p+8L : 0x3.e55965f4af4844bp-1024L : inexact-ok
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= exp10 tonearest ldbl-96-intel -0x1.33aa03p+8L : 0x3.e55965f4af4844bp-1024L : inexact-ok
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= exp10 towardzero ldbl-96-intel -0x1.33aa03p+8L : 0x3.e55965f4af4844bp-1024L : inexact-ok
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= exp10 upward ldbl-96-intel -0x1.33aa03p+8L : 0x3.e55965f4af4844b4p-1024L : inexact-ok
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= exp10 downward ldbl-96-m68k -0x1.33aa03p+8L : 0x3.e55965f4af4844bp-1024L : inexact-ok
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= exp10 tonearest ldbl-96-m68k -0x1.33aa03p+8L : 0x3.e55965f4af4844bp-1024L : inexact-ok
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= exp10 towardzero ldbl-96-m68k -0x1.33aa03p+8L : 0x3.e55965f4af4844bp-1024L : inexact-ok
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= exp10 upward ldbl-96-m68k -0x1.33aa03p+8L : 0x3.e55965f4af4844b4p-1024L : inexact-ok
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= exp10 downward ldbl-128 -0x1.33aa03p+8L : 0x3.e55965f4af4844b0187da80e25ep-1024L : inexact-ok
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= exp10 tonearest ldbl-128 -0x1.33aa03p+8L : 0x3.e55965f4af4844b0187da80e25ep-1024L : inexact-ok
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= exp10 towardzero ldbl-128 -0x1.33aa03p+8L : 0x3.e55965f4af4844b0187da80e25ep-1024L : inexact-ok
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= exp10 upward ldbl-128 -0x1.33aa03p+8L : 0x3.e55965f4af4844b0187da80e25e2p-1024L : inexact-ok
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= exp10 downward ldbl-128ibm -0x1.33aa03p+8L : 0x3.e55965f4af484p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 tonearest ldbl-128ibm -0x1.33aa03p+8L : 0x3.e55965f4af484p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 towardzero ldbl-128ibm -0x1.33aa03p+8L : 0x3.e55965f4af484p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 upward ldbl-128ibm -0x1.33aa03p+8L : 0x3.e55965f4af488p-1024L : inexact-ok underflow errno-erange-ok
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exp10 -0x1.33ad17p+8
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= exp10 downward flt-32 -0x1.33ad16p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 tonearest flt-32 -0x1.33ad16p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 towardzero flt-32 -0x1.33ad16p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 upward flt-32 -0x1.33ad16p+8f : 0x8p-152f : inexact-ok underflow errno-erange-ok
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= exp10 downward dbl-64 -0x1.33ad16p+8 : 0x3.ca263994bd44p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 tonearest dbl-64 -0x1.33ad16p+8 : 0x3.ca263994bd44p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 towardzero dbl-64 -0x1.33ad16p+8 : 0x3.ca263994bd44p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 upward dbl-64 -0x1.33ad16p+8 : 0x3.ca263994bd444p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 downward ldbl-96-intel -0x1.33ad16p+8L : 0x3.ca263994bd441e7cp-1024L : inexact-ok
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= exp10 tonearest ldbl-96-intel -0x1.33ad16p+8L : 0x3.ca263994bd441e7cp-1024L : inexact-ok
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= exp10 towardzero ldbl-96-intel -0x1.33ad16p+8L : 0x3.ca263994bd441e7cp-1024L : inexact-ok
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= exp10 upward ldbl-96-intel -0x1.33ad16p+8L : 0x3.ca263994bd441e8p-1024L : inexact-ok
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= exp10 downward ldbl-96-m68k -0x1.33ad16p+8L : 0x3.ca263994bd441e7cp-1024L : inexact-ok
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= exp10 tonearest ldbl-96-m68k -0x1.33ad16p+8L : 0x3.ca263994bd441e7cp-1024L : inexact-ok
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= exp10 towardzero ldbl-96-m68k -0x1.33ad16p+8L : 0x3.ca263994bd441e7cp-1024L : inexact-ok
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= exp10 upward ldbl-96-m68k -0x1.33ad16p+8L : 0x3.ca263994bd441e8p-1024L : inexact-ok
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= exp10 downward ldbl-128 -0x1.33ad16p+8L : 0x3.ca263994bd441e7c46ea7c3f2962p-1024L : inexact-ok
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= exp10 tonearest ldbl-128 -0x1.33ad16p+8L : 0x3.ca263994bd441e7c46ea7c3f2964p-1024L : inexact-ok
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= exp10 towardzero ldbl-128 -0x1.33ad16p+8L : 0x3.ca263994bd441e7c46ea7c3f2962p-1024L : inexact-ok
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= exp10 upward ldbl-128 -0x1.33ad16p+8L : 0x3.ca263994bd441e7c46ea7c3f2964p-1024L : inexact-ok
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= exp10 downward ldbl-128ibm -0x1.33ad16p+8L : 0x3.ca263994bd44p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 tonearest ldbl-128ibm -0x1.33ad16p+8L : 0x3.ca263994bd44p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 towardzero ldbl-128ibm -0x1.33ad16p+8L : 0x3.ca263994bd44p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 upward ldbl-128ibm -0x1.33ad16p+8L : 0x3.ca263994bd444p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 downward flt-32 -0x1.33ad18p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 tonearest flt-32 -0x1.33ad18p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 towardzero flt-32 -0x1.33ad18p+8f : 0x0p+0f : inexact-ok underflow errno-erange
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= exp10 upward flt-32 -0x1.33ad18p+8f : 0x8p-152f : inexact-ok underflow errno-erange-ok
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= exp10 downward dbl-64 -0x1.33ad18p+8 : 0x3.ca14c60907b7p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 tonearest dbl-64 -0x1.33ad18p+8 : 0x3.ca14c60907b7p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 towardzero dbl-64 -0x1.33ad18p+8 : 0x3.ca14c60907b7p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 upward dbl-64 -0x1.33ad18p+8 : 0x3.ca14c60907b74p-1024 : inexact-ok underflow errno-erange-ok
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= exp10 downward ldbl-96-intel -0x1.33ad18p+8L : 0x3.ca14c60907b717acp-1024L : inexact-ok
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= exp10 tonearest ldbl-96-intel -0x1.33ad18p+8L : 0x3.ca14c60907b717bp-1024L : inexact-ok
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= exp10 towardzero ldbl-96-intel -0x1.33ad18p+8L : 0x3.ca14c60907b717acp-1024L : inexact-ok
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= exp10 upward ldbl-96-intel -0x1.33ad18p+8L : 0x3.ca14c60907b717bp-1024L : inexact-ok
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= exp10 downward ldbl-96-m68k -0x1.33ad18p+8L : 0x3.ca14c60907b717acp-1024L : inexact-ok
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= exp10 tonearest ldbl-96-m68k -0x1.33ad18p+8L : 0x3.ca14c60907b717bp-1024L : inexact-ok
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= exp10 towardzero ldbl-96-m68k -0x1.33ad18p+8L : 0x3.ca14c60907b717acp-1024L : inexact-ok
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= exp10 upward ldbl-96-m68k -0x1.33ad18p+8L : 0x3.ca14c60907b717bp-1024L : inexact-ok
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= exp10 downward ldbl-128 -0x1.33ad18p+8L : 0x3.ca14c60907b717ae36dc1f6cac46p-1024L : inexact-ok
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= exp10 tonearest ldbl-128 -0x1.33ad18p+8L : 0x3.ca14c60907b717ae36dc1f6cac46p-1024L : inexact-ok
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= exp10 towardzero ldbl-128 -0x1.33ad18p+8L : 0x3.ca14c60907b717ae36dc1f6cac46p-1024L : inexact-ok
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= exp10 upward ldbl-128 -0x1.33ad18p+8L : 0x3.ca14c60907b717ae36dc1f6cac48p-1024L : inexact-ok
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= exp10 downward ldbl-128ibm -0x1.33ad18p+8L : 0x3.ca14c60907b7p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 tonearest ldbl-128ibm -0x1.33ad18p+8L : 0x3.ca14c60907b7p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 towardzero ldbl-128ibm -0x1.33ad18p+8L : 0x3.ca14c60907b7p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 upward ldbl-128ibm -0x1.33ad18p+8L : 0x3.ca14c60907b74p-1024L : inexact-ok underflow errno-erange-ok
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= exp10 downward dbl-64 -0x1.33ad17p+8 : 0x3.ca1d7fc4d6c38p-1024 : inexact-ok underflow errno-erange-ok
|
||||
= exp10 tonearest dbl-64 -0x1.33ad17p+8 : 0x3.ca1d7fc4d6c3cp-1024 : inexact-ok underflow errno-erange-ok
|
||||
= exp10 towardzero dbl-64 -0x1.33ad17p+8 : 0x3.ca1d7fc4d6c38p-1024 : inexact-ok underflow errno-erange-ok
|
||||
= exp10 upward dbl-64 -0x1.33ad17p+8 : 0x3.ca1d7fc4d6c3cp-1024 : inexact-ok underflow errno-erange-ok
|
||||
= exp10 downward ldbl-96-intel -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc58p-1024L : inexact-ok
|
||||
= exp10 tonearest ldbl-96-intel -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc58p-1024L : inexact-ok
|
||||
= exp10 towardzero ldbl-96-intel -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc58p-1024L : inexact-ok
|
||||
= exp10 upward ldbl-96-intel -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc5cp-1024L : inexact-ok
|
||||
= exp10 downward ldbl-96-m68k -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc58p-1024L : inexact-ok
|
||||
= exp10 tonearest ldbl-96-m68k -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc58p-1024L : inexact-ok
|
||||
= exp10 towardzero ldbl-96-m68k -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc58p-1024L : inexact-ok
|
||||
= exp10 upward ldbl-96-m68k -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc5cp-1024L : inexact-ok
|
||||
= exp10 downward ldbl-128 -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc586b2b65fe7e66p-1024L : inexact-ok
|
||||
= exp10 tonearest ldbl-128 -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc586b2b65fe7e66p-1024L : inexact-ok
|
||||
= exp10 towardzero ldbl-128 -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc586b2b65fe7e66p-1024L : inexact-ok
|
||||
= exp10 upward ldbl-128 -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3bc586b2b65fe7e68p-1024L : inexact-ok
|
||||
= exp10 downward ldbl-128ibm -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c38p-1024L : inexact-ok underflow errno-erange-ok
|
||||
= exp10 tonearest ldbl-128ibm -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3cp-1024L : inexact-ok underflow errno-erange-ok
|
||||
= exp10 towardzero ldbl-128ibm -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c38p-1024L : inexact-ok underflow errno-erange-ok
|
||||
= exp10 upward ldbl-128ibm -0x1.33ad17p+8L : 0x3.ca1d7fc4d6c3cp-1024L : inexact-ok underflow errno-erange-ok
|
||||
exp10 -0x1.33afcap+8
|
||||
= exp10 downward flt-32 -0x1.33afcap+8f : 0x0p+0f : inexact-ok underflow errno-erange
|
||||
= exp10 tonearest flt-32 -0x1.33afcap+8f : 0x0p+0f : inexact-ok underflow errno-erange
|
||||
= exp10 towardzero flt-32 -0x1.33afcap+8f : 0x0p+0f : inexact-ok underflow errno-erange
|
||||
= exp10 upward flt-32 -0x1.33afcap+8f : 0x8p-152f : inexact-ok underflow errno-erange-ok
|
||||
= exp10 downward dbl-64 -0x1.33afcap+8 : 0x3.b2d8a908d0634p-1024 : inexact-ok underflow errno-erange-ok
|
||||
= exp10 tonearest dbl-64 -0x1.33afcap+8 : 0x3.b2d8a908d0634p-1024 : inexact-ok underflow errno-erange-ok
|
||||
= exp10 towardzero dbl-64 -0x1.33afcap+8 : 0x3.b2d8a908d0634p-1024 : inexact-ok underflow errno-erange-ok
|
||||
= exp10 upward dbl-64 -0x1.33afcap+8 : 0x3.b2d8a908d0638p-1024 : inexact-ok underflow errno-erange-ok
|
||||
= exp10 downward ldbl-96-intel -0x1.33afcap+8L : 0x3.b2d8a908d0634324p-1024L : inexact-ok
|
||||
= exp10 tonearest ldbl-96-intel -0x1.33afcap+8L : 0x3.b2d8a908d0634328p-1024L : inexact-ok
|
||||
= exp10 towardzero ldbl-96-intel -0x1.33afcap+8L : 0x3.b2d8a908d0634324p-1024L : inexact-ok
|
||||
= exp10 upward ldbl-96-intel -0x1.33afcap+8L : 0x3.b2d8a908d0634328p-1024L : inexact-ok
|
||||
= exp10 downward ldbl-96-m68k -0x1.33afcap+8L : 0x3.b2d8a908d0634324p-1024L : inexact-ok
|
||||
= exp10 tonearest ldbl-96-m68k -0x1.33afcap+8L : 0x3.b2d8a908d0634328p-1024L : inexact-ok
|
||||
= exp10 towardzero ldbl-96-m68k -0x1.33afcap+8L : 0x3.b2d8a908d0634324p-1024L : inexact-ok
|
||||
= exp10 upward ldbl-96-m68k -0x1.33afcap+8L : 0x3.b2d8a908d0634328p-1024L : inexact-ok
|
||||
= exp10 downward ldbl-128 -0x1.33afcap+8L : 0x3.b2d8a908d063432616cd82f6a4eep-1024L : inexact-ok
|
||||
= exp10 tonearest ldbl-128 -0x1.33afcap+8L : 0x3.b2d8a908d063432616cd82f6a4eep-1024L : inexact-ok
|
||||
= exp10 towardzero ldbl-128 -0x1.33afcap+8L : 0x3.b2d8a908d063432616cd82f6a4eep-1024L : inexact-ok
|
||||
= exp10 upward ldbl-128 -0x1.33afcap+8L : 0x3.b2d8a908d063432616cd82f6a4fp-1024L : inexact-ok
|
||||
= exp10 downward ldbl-128ibm -0x1.33afcap+8L : 0x3.b2d8a908d0634p-1024L : inexact-ok underflow errno-erange-ok
|
||||
= exp10 tonearest ldbl-128ibm -0x1.33afcap+8L : 0x3.b2d8a908d0634p-1024L : inexact-ok underflow errno-erange-ok
|
||||
= exp10 towardzero ldbl-128ibm -0x1.33afcap+8L : 0x3.b2d8a908d0634p-1024L : inexact-ok underflow errno-erange-ok
|
||||
= exp10 upward ldbl-128ibm -0x1.33afcap+8L : 0x3.b2d8a908d0638p-1024L : inexact-ok underflow errno-erange-ok
|
||||
exp10 0x1p-10
|
||||
= exp10 downward flt-32 0x4p-12f : 0x1.009388p+0f : inexact-ok
|
||||
= exp10 tonearest flt-32 0x4p-12f : 0x1.009388p+0f : inexact-ok
|
||||
|
||||
@ -4,8 +4,25 @@
|
||||
|
||||
#include <machine/asm.h>
|
||||
|
||||
.section .rodata.cst8,"aM",@progbits,8
|
||||
|
||||
.p2align 3
|
||||
.type dbl_min,@object
|
||||
dbl_min: .byte 0, 0, 0, 0, 0, 0, 0x10, 0
|
||||
ASM_SIZE_DIRECTIVE(dbl_min)
|
||||
|
||||
#ifdef PIC
|
||||
# define MO(op) op##@GOTOFF(%ecx)
|
||||
#else
|
||||
# define MO(op) op
|
||||
#endif
|
||||
|
||||
.text
|
||||
/* 10^x = 2^(x * log2(10)) */
|
||||
ENTRY(__ieee754_exp10)
|
||||
#ifdef PIC
|
||||
LOAD_PIC_REG (cx)
|
||||
#endif
|
||||
fldl 4(%esp)
|
||||
/* I added the following ugly construct because exp(+-Inf) resulted
|
||||
in NaN. The ugliness results from the bright minds at Intel.
|
||||
@ -28,7 +45,22 @@ ENTRY(__ieee754_exp10)
|
||||
faddp /* 2^(fract(x * log2(10))) */
|
||||
fscale /* e^x */
|
||||
fstp %st(1)
|
||||
ret
|
||||
fldl MO(dbl_min)
|
||||
fld %st(1)
|
||||
fucompp
|
||||
fnstsw
|
||||
sahf
|
||||
jnc 3f
|
||||
subl $8, %esp
|
||||
cfi_adjust_cfa_offset (8)
|
||||
fld %st(0)
|
||||
fmul %st(0)
|
||||
fstpl (%esp)
|
||||
fstpl (%esp)
|
||||
fldl (%esp)
|
||||
addl $8, %esp
|
||||
cfi_adjust_cfa_offset (-8)
|
||||
3: ret
|
||||
|
||||
1: testl $0x200, %eax /* Test sign. */
|
||||
jz 2f /* If positive, jump. */
|
||||
|
||||
@ -4,8 +4,25 @@
|
||||
|
||||
#include <machine/asm.h>
|
||||
|
||||
.section .rodata.cst4,"aM",@progbits,4
|
||||
|
||||
.p2align 2
|
||||
.type flt_min,@object
|
||||
flt_min: .byte 0, 0, 0x80, 0
|
||||
ASM_SIZE_DIRECTIVE(flt_min)
|
||||
|
||||
#ifdef PIC
|
||||
# define MO(op) op##@GOTOFF(%ecx)
|
||||
#else
|
||||
# define MO(op) op
|
||||
#endif
|
||||
|
||||
.text
|
||||
/* 10^x = 2^(x * log2(10)) */
|
||||
ENTRY(__ieee754_exp10f)
|
||||
#ifdef PIC
|
||||
LOAD_PIC_REG (cx)
|
||||
#endif
|
||||
flds 4(%esp)
|
||||
/* I added the following ugly construct because exp(+-Inf) resulted
|
||||
in NaN. The ugliness results from the bright minds at Intel.
|
||||
@ -28,7 +45,22 @@ ENTRY(__ieee754_exp10f)
|
||||
faddp /* 2^(fract(x * log2(10))) */
|
||||
fscale /* e^x */
|
||||
fstp %st(1)
|
||||
ret
|
||||
flds MO(flt_min)
|
||||
fld %st(1)
|
||||
fucompp
|
||||
fnstsw
|
||||
sahf
|
||||
jnc 3f
|
||||
subl $4, %esp
|
||||
cfi_adjust_cfa_offset (4)
|
||||
fld %st(0)
|
||||
fmul %st(0)
|
||||
fstps (%esp)
|
||||
fstps (%esp)
|
||||
flds (%esp)
|
||||
addl $4, %esp
|
||||
cfi_adjust_cfa_offset (-4)
|
||||
3: ret
|
||||
|
||||
1: testl $0x200, %eax /* Test sign. */
|
||||
jz 2f /* If positive, jump. */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user