The following error occurred when I tried to convert the FP16 model to lower IR

The following error occurred when I tried to convert the FP16 model to lower IR:
/tmp/tmp87l0zh0g/my_kernel.cu(210): error: more than one operator “+” matches these operands:
function “operator+(const __half &, const __half &)”
function “operator+(half, half)”
operand types are: half + half