runtime/interpreter/mterp/mips64/op_double_to_long.S

%include "mips64/fcvtHeader.S" { "suffix":"_DOUBLE", "valreg":"f0" }
    trunc.l.d f0, f0
%include "mips64/fcvtFooter.S" { "suffix":"_DOUBLE", "valreg":"f0" }