https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110324
--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> ---
In the debugger for 'convert_syntax', it fails immediately. The caller is:
1055 case DEFINE_COND_EXEC:
1056 convert_syntax (desc, loc);
(gdb) p debug_rtx(desc)
(define_cond_exec [
(match_operator 0 ("predicate_operator")
[
(match_operand:BI 1 ("nvptx_register_operand") (""))
(match_operand:BI 2 ("const0_operand") (""))
])
] ("") ("")
[])
the check output is:
build/genpreds: Internal error: RTL check: expected elt 2 type 'T', have 's'
(rtx define_cond_exec) in convert_syntax, at gensupport.cc:883
which internally is:
templ_index = GET_CODE (x) == DEFINE_INSN ? 3 : 2;
templ = XTMPL (x, templ_index);
The first one gives '2' and then:
#define XTMPL(RTX, N) (RTL_CHECK1 (RTX, N, 'T').rt_str)
and the error string is:
751 ("RTL check: expected elt %d type '%c', have '%c' (rtx %s) in %s, at
%s:%d",
752 n, c1, GET_RTX_FORMAT (GET_CODE (r))[n], GET_RTX_NAME (GET_CODE (r)),
* * *
#define RTL_CHECK1(RTX, N, C1) __extension__ \
(*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \
const enum rtx_code _code = GET_CODE (_rtx); \
if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \
rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \
__FUNCTION__); \
if (GET_RTX_FORMAT (_code)[_n] != C1) \
rtl_check_failed_type1 (_rtx, _n, C1, __FILE__, __LINE__, \
__FUNCTION__); \
&_rtx->u.fld[_n]; }))
