llvm-project

d7bf2bf8 - [NFC][mlir][ptr] Clarify pointer dialect semantics (#158484)

[NFC][mlir][ptr] Clarify pointer dialect semantics (#158484) This patch adds the following description to the pointer dialect: ``` The pointer dialect provides types and operations for representing and interacting with pointer values in MLIR, such as loading and storing values from/to memory addresses. The dialect's main type is an opaque pointer (`ptr`) that can be parameterized by a memory space. This type represents a handle to an object in memory, or target-dependent values like `nullptr`. Further, the dialect assumes that the minimum addressable unit by a pointer is a byte. However, the dialect does not make assumptions about the size of a byte, which is considered a target-specific property. ```