e02d4142dc
This patch pushes the computation of the start address of a memref in one place (a method in MemRefDescriptor.) This allows all the (indirect) users of this method to produce the start address in the same way. Thanks to this change, we expose more CSEs opportunities and thanks to that, the backend is able to properly find the `llvm.assume` expression related to the base address as demonstrated in the added test. Differential Revision: https://reviews.llvm.org/D148947
The LLVM Compiler Infrastructure
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