[mlir-tblgen] Suffix underscore to prevent conflict (#166017)

In the case where the property name is value, the generated op def file would have a collision for hash_value.

Author: hsjts0u

mlir/test/mlir-tblgen/op-properties.td

@@ -32,7 +32,7 @@ def OpWithProps : NS_Op<"op_with_props"> {
     ArrayProp<StringProp>:$strings,
     DefaultValuedProp<I32Prop, "0">:$default_int,
     OptionalProp<I64Prop>:$optional,
-    DefaultI64Array:$intArray
+    DefaultI64Array:$value
   );
 }
 
@@ -94,10 +94,10 @@ def OpWithOptionalPropsAndAttrs :
 // DECL: ::llvm::ArrayRef<std::string> getStrings()
 // DECL: using default_intTy = int32_t;
 // DECL: default_intTy default_int = 0;
-// DECL: intArrayTy intArray = ::llvm::SmallVector<int64_t>{};
-// DECL: ::llvm::ArrayRef<int64_t> getIntArray()
+// DECL: valueTy value = ::llvm::SmallVector<int64_t>{};
+// DECL: ::llvm::ArrayRef<int64_t> getValue()
 // DECL: return ::llvm::ArrayRef<int64_t>{propStorage}
-// DECL: void setIntArray(::llvm::ArrayRef<int64_t> propValue)
+// DECL: void setValue(::llvm::ArrayRef<int64_t> propValue)
 // DECL: propStorage.assign
 // DECL-LABEL: class OpWithProps :
 // DECL: setString(::llvm::StringRef newString)
@@ -111,14 +111,14 @@ def OpWithOptionalPropsAndAttrs :
 // DECL-SAME: ::llvm::ArrayRef<std::string> strings,
 // DECL-SAME: /*optional*/int32_t default_int = 0,
 // DECL-SAME: /*optional*/std::optional<int64_t> optional = std::nullopt,
-// DECL-SAME: /*optional*/::llvm::ArrayRef<int64_t> intArray = ::llvm::ArrayRef<int64_t>{});
+// DECL-SAME: /*optional*/::llvm::ArrayRef<int64_t> value = ::llvm::ArrayRef<int64_t>{});
 
 // DEFS-LABEL: OpWithProps::computePropertiesHash
-// DEFS: hash_intArray
+// DEFS: hash_value_
 // DEFS: using ::llvm::hash_value;
 // DEFS-NEXT: return hash_value(::llvm::ArrayRef<int64_t>{propStorage})
 // DEFS: hash_value(prop.optional)
-// DEFS: hash_intArray(prop.intArray)
+// DEFS: hash_value_(prop.value)
 
 // -----
 

mlir/tools/mlir-tblgen/OpDefinitionsGen.cpp

@@ -1629,7 +1629,7 @@ void OpEmitter::genPropertiesSupport() {
   // Hashing for the property
 
   const char *propHashFmt = R"decl(
-  auto hash_{0} = [] (const auto &propStorage) -> llvm::hash_code {
+  auto hash_{0}_ = [] (const auto &propStorage) -> llvm::hash_code {
     using ::llvm::hash_value;
     return {1};
   };
@@ -1655,7 +1655,7 @@ void OpEmitter::genPropertiesSupport() {
         if (const auto *namedProperty =
                 llvm::dyn_cast_if_present<const NamedProperty *>(attrOrProp)) {
           if (!namedProperty->prop.getHashPropertyCall().empty()) {
-            hashMethod << "\n    hash_" << namedProperty->name << "(prop."
+            hashMethod << "\n    hash_" << namedProperty->name << "_(prop."
                        << namedProperty->name << ")";
           } else {
             hashMethod << "\n    hash_value(prop." << namedProperty->name