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[Bug math/18049] New: [i386] atanhl spurious underflows


https://sourceware.org/bugzilla/show_bug.cgi?id=18049

            Bug ID: 18049
           Summary: [i386] atanhl spurious underflows
           Product: glibc
           Version: 2.21
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
          Assignee: unassigned at sourceware dot org
          Reporter: jsm28 at gcc dot gnu.org
              Host: i?86-*-*

The i386 implementation of atanhl computes twice the square of its argument for
small arguments, including those for which this results in spurious underflow,
e.g. atanhl (0x1p-10000L) produces a spurious underflow exception.

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