[PATCH] D114141: Allow DataLayout to support arbitrary pointer sizes

[Stephen Neuendorffer via Phabricator via llvm-commits]

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Currently, it is impossible to specify a DataLayout with pointer
size and index size that is not a whole number of bytes.
This patch modifies
the DataLayout class to accept arbitrary pointer sizes and to
store the size as a number of bits, rather than as a number of bytes.
Generally speaking, the external interface of the class as used
by in-tree architectures remains the same and shouldn't affect the
behavior of architecures with pointer sizes equal to a whole number
of bytes.

Note the interface of setPointerAlignment has changed and takes
a pointer and index size that is a number of bits, rather than a number
of bytes.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D114141

Files:
  llvm/include/llvm/IR/DataLayout.h
  llvm/lib/IR/DataLayout.cpp

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