Hi,
I am trying to build a new backend target. First I wanted to start with just one intrinsic function. So I followed (I think I did) the
guidelines about doing. For some reason I am getting this error message from the tblgen:
"In SU_routeInstr: Type inference contradiction found in node imm!"
Here is my
def Imm8Arg: Operand<i8> {
let PrintMethod = "print Imm8Arg";
}
// Intrinsic functions
// int_stella_su_route
let neverHasSideEffects = 1 in {
def SU_routeInstr: MyInst<(outs),(ins Imm8Arg:$inport, Imm8Arg:$outline),
"sel\t%o.ww.$outline=%i.ww.$inport",
[(int_my_su_route imm:$inport, imm:$outline)]>;
My intrinsic function is defined this way in the .td file that describes my target intrinsics:
def int_my_su_route :
Intrinsic<[llvm_void_ty], [llvm_i8_ty,
llvm_i8_ty], [IntrNoMem]>;
This int_my_su_route function is of "void" type and it should take two byte-size immediate arguments.
Can anyone point me to my error?
Thanks a lot.
-- Fima