This is the mail archive of the newlib@sourceware.org mailing list for the newlib project.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
hi, everyone: I have ported the gcc to new RISC chip. But when I build the newlib with it, the gcc crashed in simplify-rtx.c. error message is like this:
../../../../../newlib-1.16.0/newlib/libc/time/tzset_r.c: In function _tzset_r? ../../../../../newlib-1.16.0/newlib/libc/time/tzset_r.c:195: internal compiler error: in simplify_const_unary_operation, at simplify-rtx.c:1108
And the code there is simplify-rtx.c 1108:
case ZERO_EXTEND: /* When zero-extending a CONST_INT, we need to know its original mode. */ gcc_assert (op_mode != VOIDmode);
I tracked the gcc, It caused by the RTX (const_int 60). As I know the CONST_INT is alway being VOIDmode.
That exactly is the problem. You can't have a CONST_INT inside a ZERO_EXTEND. That is not valid. You'll need a separate pattern to recognize the CONST_INT without a ZERO_EXTEND around it. Unfortunately, this will not give reload the freedom it should have.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |