Arguments mismatch for instruction 'selp'

[Logos7]

Once upon a time something strange happend, when I run my OpenCL raytracer:

---

Build Log:
ptxas ptx input, line 1266; error : Arguments mismatch for instruction ‘selp’
: Retrieving binary for ‘anonymous_jit_identity’, for gpu=‘sm_11’, usage mode=’

Here is assembly code of this place:

ltmp_327_6:
mov.b32 ltmp_320_9, ptxbe_def_r;
add.s32 ltmp_320_9, 48, ltmp_320_9;
st.local.f32 [ltmp_320_9+0],ptxbe_def_t_1;
selp.pred %retval, 1, 0, 1; <------------------------------- here is line 1266
ret;
ltmp_321_6:
selp.pred %retval, 1, 0, 0;
ret;

Could you tell me, what it could be? Compiler bug?
Thank you in advance for the answers.

[Geka]

I am getting the same kind of problem with one of my kernels, but with the “mov” instruction.

Looks like the compiler is generating incorrect PTX code.

[mrule]

Same problem, but it only shows up when I try to use unsigned chars or chars rather than ints. It seems to work with uint16.