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Date: Fri, 23 Nov 2007 19:38:00 -0000
Subject: [Bug c/34210]  New: ffs builtin calls undefined __ffshi2
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From: "sjackman at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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ffs((uint8_t)x) and ffs((uint16_t)x) generate a call to __ffshi2, but this
function does not exist in libgcc.a, giving the error
undefined reference to `__ffshi2'.

Test case:

int main(int argc)
{
        return ffs(argc);
}


-- 
           Summary: ffs builtin calls undefined __ffshi2
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sjackman at gmail dot com
GCC target triplet: avr


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34210