[Bug c/43610] New: [4.5 Regression] ICE: in prepare_float_lib_cmp, at optabs.c:4392 with -fno-trapping-math and _Decimal64 comparison

[zsojka at seznam dot cz]

Command line:
gcc -fno-trapping-math testcase.c

------ testcase.c ------
int foo(_Decimal64 x[2])
{
  return !(x[0] < x[1]);
}
------------------------

Tested revisions:
r157877 - crash
r153685 - crash
4.4 r157895 - OK

Compiler output:
$ /mnt/svn/gcc-trunk/binary-157877-lto/bin/gcc -fno-trapping-math testcase.c
testcase.c: In function 'foo':
testcase.c:3:3: internal compiler error: in prepare_float_lib_cmp, at
optabs.c:4392
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


-- 
           Summary: [4.5 Regression] ICE: in prepare_float_lib_cmp, at
                    optabs.c:4392 with -fno-trapping-math and _Decimal64
                    comparison
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43610