Fixed recursive bounds produced when considering update step of reductions.
Fixed recursive bounds produced when considering update step of reductions.

Former-commit-id: dde306b0a723cba2e93c8991179bd39a80225ba6
Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide