Suppress warning in div_mod where unsigned values get compared to -1
Suppress warning in div_mod where unsigned values get compared to -1


Former-commit-id: 4a2edf6939fc46d154f23c86cead164fe6472eb9
darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide