[Bug target/30243] New: avr-gcc 4.1.1: signbit() causes an internal compiler error

[dmixm at marine dot febras dot ru]

avr-gcc (GCC) 4.1.1
Compilation of next program (-W -Wall -Os -S):

    extern int signbit (double);
    int foo (double x)
    {
        return signbit (x);
    }

causes an compilation abort with message:
    internal compiler error: in gen_lowpart_general, at rtlhooks.c:51

Older versions are work:
        3.3.5, 3.4.4  - call of external signbit() function
        4.0.2            - inline-code


-- 
           Summary: avr-gcc 4.1.1: signbit() causes an internal compiler
                    error
           Product: gcc
           Version: 4.1.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dmixm at marine dot febras dot ru


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30243