Before this patch, we can only use the MaxBECount for an AddRec's range computation if the MaxBECount has <= bit width of the AddRec. This patch reasons that if a MaxBECount has > bit width, and is <= the max value of AddRec's bit width, we can still use the MaxBECount. Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D151698