[mlir] Remove redundant declarations (NFC)

[kazutakahirata]

In C++17, static constexpr members are implicitly inline, so they no
longer require an out-of-line definition.

The comments for these variables are also present in:

mlir/include/mlir/Dialect/Bufferization/IR/BufferizationBase.td

Identified with readability-redundant-declaration.

[llvmbot]

@llvm/pr-subscribers-mlir-bufferization

@llvm/pr-subscribers-mlir

Author: Kazu Hirata (kazutakahirata)

Changes

In C++17, static constexpr members are implicitly inline, so they no
longer require an out-of-line definition.

The comments for these variables are also present in:

mlir/include/mlir/Dialect/Bufferization/IR/BufferizationBase.td

Identified with readability-redundant-declaration.

---

Full diff: https://github.com/llvm/llvm-project/pull/166896.diff

1 Files Affected:

• (modified) mlir/lib/Dialect/Bufferization/IR/BufferizationDialect.cpp (-19)

diff --git a/mlir/lib/Dialect/Bufferization/IR/BufferizationDialect.cpp b/mlir/lib/Dialect/Bufferization/IR/BufferizationDialect.cpp
index 6c08cdfb669f3..d6c3cd62ee742 100644
--- a/mlir/lib/Dialect/Bufferization/IR/BufferizationDialect.cpp
+++ b/mlir/lib/Dialect/Bufferization/IR/BufferizationDialect.cpp
@@ -21,25 +21,6 @@ using namespace mlir::bufferization;
 
 #include "mlir/Dialect/Bufferization/IR/BufferizationOpsDialect.cpp.inc"
 
-/// Attribute name used to mark function arguments who's buffers can be written
-/// to during One-Shot Module Bufferize.
-constexpr const ::llvm::StringLiteral BufferizationDialect::kWritableAttrName;
-
-/// Attribute name used to mark the bufferization layout for region arguments
-/// during One-Shot Module Bufferize.
-constexpr const ::llvm::StringLiteral
-    BufferizationDialect::kBufferLayoutAttrName;
-
-/// An attribute that can be attached to ops with an allocation and/or
-/// deallocation side effect. It indicates that the op is under a "manual
-/// deallocation" scheme. In the case of an allocation op, the returned
-/// value is *not* an automatically managed allocation and assigned an
-/// ownership of "false". Furthermore, only deallocation ops that are
-/// guaranteed to deallocate a buffer under "manual deallocation" are
-/// allowed to have this attribute. (Deallocation ops without this
-/// attribute are rejected by the ownership-based buffer deallocation pass.)
-constexpr const ::llvm::StringLiteral BufferizationDialect::kManualDeallocation;
-
 //===----------------------------------------------------------------------===//
 // Bufferization Dialect Interfaces
 //===----------------------------------------------------------------------===//