Don't partition a loop to make an empty steady state.
Don't partition a loop to make an empty steady state.


Former-commit-id: 9e291b47dfbe493d45c9de47a3a2c53c93900e35
Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide