[Bug middle-end/29719] newlib targets ICEs in expand_builtin_int_roundingfn

["ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from ubizjak at gmail dot com  2006-11-05 14:52 -------
(In reply to comment #3)

> I had a slightly deeper look.  The ceilf builtin is defined only
> for C99 targets in builtins.def:
> 
> DEF_C99_C90RES_BUILTIN (BUILT_IN_CEILF, "ceilf", BT_FN_FLOAT_FLOAT,
> ATTR_CONST_NOTHROW_LIST)

But please consider this part from convert.c, function convert_to_integer():

      switch (fcode)
        {
        CASE_FLT_FN (BUILT_IN_CEIL):
          /* Only convert in ISO C99 mode.  */
          if (!TARGET_C99_FUNCTIONS)
            break;
          if (outprec < TYPE_PRECISION (long_integer_type_node)
              || (outprec == TYPE_PRECISION (long_integer_type_node)
                  && !TYPE_UNSIGNED (type)))
            fn = mathfn_built_in (s_intype, BUILT_IN_LCEIL);
          else if (outprec == TYPE_PRECISION (long_long_integer_type_node)
                   && !TYPE_UNSIGNED (type))
            fn = mathfn_built_in (s_intype, BUILT_IN_LLCEIL);
          break;

TARGET_C99_FUNCTIONS should prevent this transformation, when we can't
fall-back to ceilf().


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
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                 CC|                            |ubizjak at gmail dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29719