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Update OpBase.td AttrDef class to define default value for returnType and convertFromStorage (NFC) 

Differential Revision: https://reviews.llvm.org/D100356
This commit is contained in:
Mehdi Amini 2021-04-13 00:46:48 +00:00
parent 87183b1a75
commit 543cd763a4
1 changed files with 14 additions and 0 deletions
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14
mlir/include/mlir/IR/OpBase.td
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@ -2699,6 +2699,20 @@ class AttrDef<Dialect dialect, string name,
// The name of the C++ Attribute class.
string cppClassName = name # "Attr";
// The underlying C++ value type
let returnType = dialect.cppNamespace # "::" # cppClassName;
// The call expression to convert from the storage type to the return
// type. For example, an enum can be stored as an int but returned as an
// enum class.
//
// Format: $_self will be expanded to the attribute.
//
// For example, `$_self.getValue().getSExtValue()` for `IntegerAttr val` will
// expand to `getAttrOfType<IntegerAttr>("val").getValue().getSExtValue()`.
let convertFromStorage = "$_self.cast<" # dialect.cppNamespace #
"::" # cppClassName # ">()";
// A code block used to build the value 'Type' of an Attribute when
// initializing its storage instance. This field is optional, and if not
// present the attribute will have its value type set to `NoneType`. This code