[Bug math/13883] New: cexp inaccurate for large imaginary part on x86

[jsm28 at gcc dot gnu.org]

http://sourceware.org/bugzilla/show_bug.cgi?id=13883

             Bug #: 13883
           Summary: cexp inaccurate for large imaginary part on x86
           Product: glibc
           Version: 2.15
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jsm28@gcc.gnu.org
    Classification: Unclassified
              Host: i?86-*-*


x86 (32-bit only) has its own implementations of cexp, cexpf and cexpl which
use fsincos with inaccurate argument reduction and so suffer from the same
problems sincos did when it used fsincos (e.g., cexp (0x1p1023 * I) has no
relation to the correct value).  These should probably be removed (with tests
for arguments with large imaginary part added similar to those for sincos) so
the generic C version is used for x86.

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