Don't use doubles for calculating the error at every point in the test.
Don't use doubles for calculating the error at every point in the test.


Former-commit-id: 83d58ee09d0df36033bee6694758ef933f192608
Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide