Fixed a bug in the handling of LetStmts by specialize_branched_loops. Was not considering the maximum branching depth value.
Fixed a bug in the handling of LetStmts by specialize_branched_loops. Was not considering the maximum branching depth value.


Former-commit-id: f11f96223fc3a9076fae422ef6a538b9841f7906
Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide,darkbuck/Halide,Trass3r/Halide,Trass3r/Halide,Trass3r/Halide,darkbuck/Halide,Trass3r/Halide,darkbuck/Halide