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* [Bug math/27707] New: [x86_64] tgammal/tgammaf128 have too large ULP error
@ 2021-04-07 11:42 zimmerma+gcc at loria dot fr
  0 siblings, 0 replies; only message in thread
From: zimmerma+gcc at loria dot fr @ 2021-04-07 11:42 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=27707

            Bug ID: 27707
           Summary: [x86_64] tgammal/tgammaf128 have too large ULP error
           Product: glibc
           Version: 2.33
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
          Assignee: unassigned at sourceware dot org
          Reporter: zimmerma+gcc at loria dot fr
  Target Milestone: ---

since #26983 has fixed the case for dbl-64, I open a new bug for ldbl-96 and
float128.

ldbl-96:
tgamma 0 -1 -0xb.161d242d4b9282ap+0l [10] [9.55] 9.54949 9.549492309693097

float128:
tgamma 0 -1 -0x1.7057f50b37aa8cddab347b44d58p+4 [10] [10.5] 10.4736
10.47361515517352

See https://members.loria.fr/PZimmermann/papers/accuracy.pdf

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2021-04-07 11:42 [Bug math/27707] New: [x86_64] tgammal/tgammaf128 have too large ULP error zimmerma+gcc at loria dot fr

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