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

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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.
```
This commit is contained in:
Fabian Mora
2025-09-14 12:57:43 -04:00
committed by GitHub
parent 8007022caf
commit d7bf2bf85f
1 changed files with 12 additions and 0 deletions
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12
mlir/include/mlir/Dialect/Ptr/IR/PtrDialect.td
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@@ -21,6 +21,18 @@ include "mlir/IR/OpBase.td"
def Ptr_Dialect : Dialect {
let name = "ptr";
let summary = "Pointer dialect";
let description = [{
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.
}];
let cppNamespace = "::mlir::ptr";
let useDefaultTypePrinterParser = 1;
let useDefaultAttributePrinterParser = 1;