[Mlir-commits] [llvm] [mlir] [mlir][tblgen] Expose all of MLIRTableGen as library (PR #92709)

llvmlistbot at llvm.org llvmlistbot at llvm.org
Sun May 19 21:35:57 PDT 2024


llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-mlir

Author: Maksim Levental (makslevental)

<details>
<summary>Changes</summary>

I would like to expose/make available more (all?) of the tblgen utility code as a library. This will enable downstream projects/users to extend that code to implement such things as C API generation.

The strategy here is:

1. Move all impls currently in `mlir/tools/mlir-tblgen/*.cpp` to `mlir/lib/TableGen`;
2. Add headers and put various `emitDefs*` into them;
3. Move `static mlir::GenRegistration`s and `llvm::cl::opt`s to `mlir-tblgen.cpp`.

Nothing revolutionary. The plan is to move more things into the headers over the coming weeks as I begin to experiment with downstream extensions.

Feel free to bikeshed homes of various `emitDefs*` and names of headers - I tried to group stuff that was related while still splitting somewhat.

---

Patch is 146.92 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/92709.diff


45 Files Affected:

- (modified) llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp (+1-1) 
- (modified) mlir/include/mlir/TableGen/AttrOrTypeDef.h (+62) 
- (renamed) mlir/include/mlir/TableGen/AttrOrTypeFormatGen.h (+1-1) 
- (added) mlir/include/mlir/TableGen/ByteCodeGen.h (+23) 
- (added) mlir/include/mlir/TableGen/CAPIGen.h (+25) 
- (renamed) mlir/include/mlir/TableGen/DialectGenUtilities.h (+12-1) 
- (renamed) mlir/include/mlir/TableGen/DocGenUtilities.h (+17) 
- (added) mlir/include/mlir/TableGen/EnumGen.h (+23) 
- (renamed) mlir/include/mlir/TableGen/FormatGen.h (-3) 
- (added) mlir/include/mlir/TableGen/LLVMGen.h (+36) 
- (renamed) mlir/include/mlir/TableGen/OpClass.h () 
- (renamed) mlir/include/mlir/TableGen/OpFormatGen.h (+2-1) 
- (renamed) mlir/include/mlir/TableGen/OpGenHelpers.h (+13-2) 
- (added) mlir/include/mlir/TableGen/OpInterfacesGen.h (+142) 
- (added) mlir/include/mlir/TableGen/PassGen.h (+24) 
- (added) mlir/include/mlir/TableGen/PythonGen.h (+25) 
- (added) mlir/include/mlir/TableGen/SPIRVGen.h (+37) 
- (renamed) mlir/lib/TableGen/AttrOrTypeDefGen.cpp (+11-111) 
- (renamed) mlir/lib/TableGen/AttrOrTypeFormatGen.cpp (+4-5) 
- (renamed) mlir/lib/TableGen/BytecodeDialectGen.cpp (+8-16) 
- (modified) mlir/lib/TableGen/CMakeLists.txt (+23-1) 
- (modified) mlir/lib/TableGen/Constraint.cpp (+1-1) 
- (renamed) mlir/lib/TableGen/DialectGen.cpp (+19-34) 
- (renamed) mlir/lib/TableGen/DirectiveCommonGen.cpp (+9-23) 
- (renamed) mlir/lib/TableGen/EnumPythonBindingGen.cpp (+5-11) 
- (renamed) mlir/lib/TableGen/EnumsGen.cpp (+7-18) 
- (renamed) mlir/lib/TableGen/FormatGen.cpp (+1-10) 
- (renamed) mlir/lib/TableGen/LLVMIRConversionGen.cpp (+16-38) 
- (renamed) mlir/lib/TableGen/LLVMIRIntrinsicGen.cpp (+13-35) 
- (renamed) mlir/lib/TableGen/OpClass.cpp (+1-1) 
- (renamed) mlir/lib/TableGen/OpDefinitionsGen.cpp (+49-45) 
- (renamed) mlir/lib/TableGen/OpDocGen.cpp (+38-62) 
- (renamed) mlir/lib/TableGen/OpFormatGen.cpp (+5-4) 
- (renamed) mlir/lib/TableGen/OpGenHelpers.cpp (+6-19) 
- (renamed) mlir/lib/TableGen/OpInterfacesGen.cpp (+21-138) 
- (renamed) mlir/lib/TableGen/OpPythonBindingGen.cpp (+10-27) 
- (modified) mlir/lib/TableGen/Operator.cpp (+2-1) 
- (renamed) mlir/lib/TableGen/PassCAPIGen.cpp (+10-26) 
- (renamed) mlir/lib/TableGen/PassDocGen.cpp (+3-9) 
- (renamed) mlir/lib/TableGen/PassGen.cpp (+8-19) 
- (renamed) mlir/lib/TableGen/RewriterGen.cpp (+10-13) 
- (renamed) mlir/lib/TableGen/SPIRVUtilsGen.cpp (+24-106) 
- (modified) mlir/lib/Tools/mlir-tblgen/CMakeLists.txt (+1-1) 
- (modified) mlir/tools/mlir-tblgen/CMakeLists.txt (+1-23) 
- (modified) mlir/tools/mlir-tblgen/mlir-tblgen.cpp (+456-1) 


``````````diff
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
index 3524abba8990a..2ba3bb6310df9 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyAsmPrinter.cpp
@@ -387,7 +387,7 @@ void WebAssemblyAsmPrinter::emitDecls(const Module &M) {
 void WebAssemblyAsmPrinter::emitEndOfAsmFile(Module &M) {
   // This is required to emit external declarations (like .functypes) when
   // no functions are defined in the compilation unit and therefore,
-  // emitDecls() is not called until now.
+  // emitDirectiveDecls() is not called until now.
   emitDecls(M);
 
   // When a function's address is taken, a TABLE_INDEX relocation is emitted
diff --git a/mlir/include/mlir/TableGen/AttrOrTypeDef.h b/mlir/include/mlir/TableGen/AttrOrTypeDef.h
index 19c3a9183ec2c..56fd0264774be 100644
--- a/mlir/include/mlir/TableGen/AttrOrTypeDef.h
+++ b/mlir/include/mlir/TableGen/AttrOrTypeDef.h
@@ -17,6 +17,7 @@
 #include "mlir/Support/LLVM.h"
 #include "mlir/TableGen/Builder.h"
 #include "mlir/TableGen/Trait.h"
+#include "llvm/TableGen/Record.h"
 
 namespace llvm {
 class DagInit;
@@ -277,6 +278,67 @@ class TypeDef : public AttrOrTypeDef {
   StringRef getTypeName() const;
 };
 
+//===----------------------------------------------------------------------===//
+// DefGenerator
+//===----------------------------------------------------------------------===//
+
+/// This struct is the base generator used when processing tablegen interfaces.
+class DefGenerator {
+public:
+  bool emitDecls(StringRef selectedDialect);
+  bool emitDefs(StringRef selectedDialect);
+
+protected:
+  DefGenerator(std::vector<llvm::Record *> &&defs, raw_ostream &os,
+               StringRef defType, StringRef valueType, bool isAttrGenerator,
+               bool formatErrorIsFatal)
+      : defRecords(std::move(defs)), os(os), defType(defType),
+        valueType(valueType), isAttrGenerator(isAttrGenerator),
+        formatErrorIsFatal(formatErrorIsFatal) {
+    // Sort by occurrence in file.
+    llvm::sort(defRecords, [](llvm::Record *lhs, llvm::Record *rhs) {
+      return lhs->getID() < rhs->getID();
+    });
+  }
+
+  /// Emit the list of def type names.
+  void emitTypeDefList(ArrayRef<AttrOrTypeDef> defs);
+  /// Emit the code to dispatch between different defs during parsing/printing.
+  void emitParsePrintDispatch(ArrayRef<AttrOrTypeDef> defs);
+
+  /// The set of def records to emit.
+  std::vector<llvm::Record *> defRecords;
+  /// The attribute or type class to emit.
+  /// The stream to emit to.
+  raw_ostream &os;
+  /// The prefix of the tablegen def name, e.g. Attr or Type.
+  StringRef defType;
+  /// The C++ base value type of the def, e.g. Attribute or Type.
+  StringRef valueType;
+  /// Flag indicating if this generator is for Attributes. False if the
+  /// generator is for types.
+  bool isAttrGenerator;
+  /// Whether a failure in parsing the assembly format should be a fatal error.
+  bool formatErrorIsFatal;
+};
+
+/// A specialized generator for AttrDefs.
+struct AttrDefGenerator : public DefGenerator {
+  AttrDefGenerator(const llvm::RecordKeeper &records, raw_ostream &os,
+                   bool formatErrorIsFatal)
+      : DefGenerator(records.getAllDerivedDefinitionsIfDefined("AttrDef"), os,
+                     "Attr", "Attribute", /*isAttrGenerator=*/true,
+                     formatErrorIsFatal) {}
+};
+/// A specialized generator for TypeDefs.
+struct TypeDefGenerator : public DefGenerator {
+  TypeDefGenerator(const llvm::RecordKeeper &records, raw_ostream &os,
+                   bool formatErrorIsFatal)
+      : DefGenerator(records.getAllDerivedDefinitionsIfDefined("TypeDef"), os,
+                     "Type", "Type", /*isAttrGenerator=*/false,
+                     formatErrorIsFatal) {}
+};
+
 } // namespace tblgen
 } // namespace mlir
 
diff --git a/mlir/tools/mlir-tblgen/AttrOrTypeFormatGen.h b/mlir/include/mlir/TableGen/AttrOrTypeFormatGen.h
similarity index 91%
rename from mlir/tools/mlir-tblgen/AttrOrTypeFormatGen.h
rename to mlir/include/mlir/TableGen/AttrOrTypeFormatGen.h
index d4711532a79bb..8a3b38f7a1235 100644
--- a/mlir/tools/mlir-tblgen/AttrOrTypeFormatGen.h
+++ b/mlir/include/mlir/TableGen/AttrOrTypeFormatGen.h
@@ -18,7 +18,7 @@ class AttrOrTypeDef;
 /// Generate a parser and printer based on a custom assembly format for an
 /// attribute or type.
 void generateAttrOrTypeFormat(const AttrOrTypeDef &def, MethodBody &parser,
-                              MethodBody &printer);
+                              MethodBody &printer, bool formatErrorIsFatal);
 
 } // namespace tblgen
 } // namespace mlir
diff --git a/mlir/include/mlir/TableGen/ByteCodeGen.h b/mlir/include/mlir/TableGen/ByteCodeGen.h
new file mode 100644
index 0000000000000..4c3c89f1fd799
--- /dev/null
+++ b/mlir/include/mlir/TableGen/ByteCodeGen.h
@@ -0,0 +1,23 @@
+//===- ByteCodeGen.h - Generator info ---------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MLIR_TABLEGEN_BYTECODEGEN_H_
+#define MLIR_TABLEGEN_BYTECODEGEN_H_
+
+#include "mlir/Support/LLVM.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/TableGen/Record.h"
+
+namespace mlir::tblgen {
+
+bool emitBCRW(const llvm::RecordKeeper &records, raw_ostream &os,
+              const std::string &selectedBcDialect);
+
+} // namespace mlir::tblgen
+
+#endif // MLIR_TABLEGEN_BYTECODEGEN_H_
diff --git a/mlir/include/mlir/TableGen/CAPIGen.h b/mlir/include/mlir/TableGen/CAPIGen.h
new file mode 100644
index 0000000000000..ea687aee35d60
--- /dev/null
+++ b/mlir/include/mlir/TableGen/CAPIGen.h
@@ -0,0 +1,25 @@
+//===- CAPIGen.h - Generator info -------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MLIR_TABLEGEN_CAPIGEN_H_
+#define MLIR_TABLEGEN_CAPIGEN_H_
+
+#include "mlir/Support/LLVM.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/TableGen/Record.h"
+
+namespace mlir::tblgen {
+
+bool emitCAPIHeader(const llvm::RecordKeeper &records, raw_ostream &os,
+                    std::string groupPrefix);
+bool emitCAPIImpl(const llvm::RecordKeeper &records, raw_ostream &os,
+                  std::string groupPrefix);
+
+} // namespace mlir::tblgen
+
+#endif // MLIR_TABLEGEN_CAPIGEN_H_
diff --git a/mlir/tools/mlir-tblgen/DialectGenUtilities.h b/mlir/include/mlir/TableGen/DialectGenUtilities.h
similarity index 57%
rename from mlir/tools/mlir-tblgen/DialectGenUtilities.h
rename to mlir/include/mlir/TableGen/DialectGenUtilities.h
index 979a9d67b4047..2ef3a3a157d54 100644
--- a/mlir/tools/mlir-tblgen/DialectGenUtilities.h
+++ b/mlir/include/mlir/TableGen/DialectGenUtilities.h
@@ -10,6 +10,8 @@
 #define MLIR_TOOLS_MLIRTBLGEN_DIALECTGENUTILITIES_H_
 
 #include "mlir/Support/LLVM.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/TableGen/Record.h"
 
 namespace mlir {
 namespace tblgen {
@@ -17,7 +19,16 @@ class Dialect;
 
 /// Find the dialect selected by the user to generate for. Returns std::nullopt
 /// if no dialect was found, or if more than one potential dialect was found.
-std::optional<Dialect> findDialectToGenerate(ArrayRef<Dialect> dialects);
+std::optional<Dialect>
+findDialectToGenerate(ArrayRef<Dialect> dialects,
+                      const std::string &selectedDialect);
+bool emitDialectDecls(const llvm::RecordKeeper &recordKeeper, raw_ostream &os,
+                      const std::string &selectedDialect);
+bool emitDialectDefs(const llvm::RecordKeeper &recordKeeper, raw_ostream &os,
+                     const std::string &selectedDialect);
+bool emitDirectiveDecls(const llvm::RecordKeeper &recordKeeper,
+                        llvm::StringRef dialect, raw_ostream &os);
+
 } // namespace tblgen
 } // namespace mlir
 
diff --git a/mlir/tools/mlir-tblgen/DocGenUtilities.h b/mlir/include/mlir/TableGen/DocGenUtilities.h
similarity index 64%
rename from mlir/tools/mlir-tblgen/DocGenUtilities.h
rename to mlir/include/mlir/TableGen/DocGenUtilities.h
index dd1dbbe243911..90296062917bb 100644
--- a/mlir/tools/mlir-tblgen/DocGenUtilities.h
+++ b/mlir/include/mlir/TableGen/DocGenUtilities.h
@@ -15,6 +15,7 @@
 #define MLIR_TOOLS_MLIRTBLGEN_DOCGENUTILITIES_H_
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/TableGen/Record.h"
 
 namespace llvm {
 class raw_ostream;
@@ -39,6 +40,22 @@ void emitDescription(llvm::StringRef description, llvm::raw_ostream &os);
 void emitDescriptionComment(llvm::StringRef description, llvm::raw_ostream &os,
                             llvm::StringRef prefix = "");
 
+void emitAttrOrTypeDefDoc(const llvm::RecordKeeper &recordKeeper,
+                          llvm::raw_ostream &os,
+                          llvm::StringRef recordTypeName);
+
+void emitOpDoc(const llvm::RecordKeeper &recordKeeper, llvm::raw_ostream &os,
+               const std::string &emitOpDoc, bool allowHugoSpecificFeatures,
+               const std::string &opIncFilter, const std::string &opExcFilter);
+
+bool emitDialectDoc(const llvm::RecordKeeper &recordKeeper,
+                    llvm::raw_ostream &os, const std::string &selectedDialect,
+                    const std::string &opIncFilter,
+                    const std::string &opExcFilter,
+                    const std::string &stripPrefix,
+                    bool allowHugoSpecificFeatures);
+void emitDocs(const llvm::RecordKeeper &recordKeeper, llvm::raw_ostream &os);
+
 } // namespace tblgen
 } // namespace mlir
 
diff --git a/mlir/include/mlir/TableGen/EnumGen.h b/mlir/include/mlir/TableGen/EnumGen.h
new file mode 100644
index 0000000000000..a1b06c64fd367
--- /dev/null
+++ b/mlir/include/mlir/TableGen/EnumGen.h
@@ -0,0 +1,23 @@
+//===- EnumGen.h - Generator info -------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MLIR_TABLEGEN_ENUMGEN_H_
+#define MLIR_TABLEGEN_ENUMGEN_H_
+
+#include "mlir/Support/LLVM.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/TableGen/Record.h"
+
+namespace mlir::tblgen {
+
+bool emitEnumDecls(const llvm::RecordKeeper &recordKeeper, raw_ostream &os);
+bool emitEnumDefs(const llvm::RecordKeeper &recordKeeper, raw_ostream &os);
+
+} // namespace mlir::tblgen
+
+#endif // MLIR_TABLEGEN_ENUMGEN_H_
diff --git a/mlir/tools/mlir-tblgen/FormatGen.h b/mlir/include/mlir/TableGen/FormatGen.h
similarity index 99%
rename from mlir/tools/mlir-tblgen/FormatGen.h
rename to mlir/include/mlir/TableGen/FormatGen.h
index b061d4d8ea7f0..2a05414e90f29 100644
--- a/mlir/tools/mlir-tblgen/FormatGen.h
+++ b/mlir/include/mlir/TableGen/FormatGen.h
@@ -596,9 +596,6 @@ bool canFormatStringAsKeyword(StringRef value,
 bool isValidLiteral(StringRef value,
                     function_ref<void(Twine)> emitError = nullptr);
 
-/// Whether a failure in parsing the assembly format should be a fatal error.
-extern llvm::cl::opt<bool> formatErrorIsFatal;
-
 } // namespace tblgen
 } // namespace mlir
 
diff --git a/mlir/include/mlir/TableGen/LLVMGen.h b/mlir/include/mlir/TableGen/LLVMGen.h
new file mode 100644
index 0000000000000..1598b99cbecf3
--- /dev/null
+++ b/mlir/include/mlir/TableGen/LLVMGen.h
@@ -0,0 +1,36 @@
+//===- LLVMGen.h - Generator info -------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MLIR_TABLEGEN_LLVMGEN_H_
+#define MLIR_TABLEGEN_LLVMGEN_H_
+
+#include "mlir/Support/LLVM.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/TableGen/Record.h"
+
+namespace mlir::tblgen {
+
+bool emitLLVMBuilders(const llvm::RecordKeeper &recordKeeper, raw_ostream &os);
+bool emitLLVMOpMLIRBuilders(const llvm::RecordKeeper &recordKeeper,
+                            raw_ostream &os);
+bool emitLLVMIntrMLIRBuilders(const llvm::RecordKeeper &recordKeeper,
+                              raw_ostream &os);
+template <bool ConvertTo>
+bool emitLLVMEnumConversionDefs(const llvm::RecordKeeper &recordKeeper,
+                                raw_ostream &os);
+bool emitLLVMConvertibleIntrinsics(const llvm::RecordKeeper &recordKeeper,
+                                   raw_ostream &os);
+bool emitLLVMIntrinsics(const llvm::RecordKeeper &records,
+                        llvm::raw_ostream &os, const std::string &nameFilter,
+                        const std::string &accessGroupRegexp,
+                        const std::string &aliasAnalysisRegexp,
+                        const std::string &opBaseClass);
+
+} // namespace mlir::tblgen
+
+#endif // MLIR_TABLEGEN_LLVMGEN_H_
diff --git a/mlir/tools/mlir-tblgen/OpClass.h b/mlir/include/mlir/TableGen/OpClass.h
similarity index 100%
rename from mlir/tools/mlir-tblgen/OpClass.h
rename to mlir/include/mlir/TableGen/OpClass.h
diff --git a/mlir/tools/mlir-tblgen/OpFormatGen.h b/mlir/include/mlir/TableGen/OpFormatGen.h
similarity index 88%
rename from mlir/tools/mlir-tblgen/OpFormatGen.h
rename to mlir/include/mlir/TableGen/OpFormatGen.h
index 88dbc99d9f78e..fc5306031ebe6 100644
--- a/mlir/tools/mlir-tblgen/OpFormatGen.h
+++ b/mlir/include/mlir/TableGen/OpFormatGen.h
@@ -20,7 +20,8 @@ class OpClass;
 class Operator;
 
 // Generate the assembly format for the given operator.
-void generateOpFormat(const Operator &constOp, OpClass &opClass);
+void generateOpFormat(const Operator &constOp, OpClass &opClass,
+                      bool formatErrorIsFatal);
 
 } // namespace tblgen
 } // namespace mlir
diff --git a/mlir/tools/mlir-tblgen/OpGenHelpers.h b/mlir/include/mlir/TableGen/OpGenHelpers.h
similarity index 69%
rename from mlir/tools/mlir-tblgen/OpGenHelpers.h
rename to mlir/include/mlir/TableGen/OpGenHelpers.h
index 1b43d5d3ce3a7..51406f25325f8 100644
--- a/mlir/tools/mlir-tblgen/OpGenHelpers.h
+++ b/mlir/include/mlir/TableGen/OpGenHelpers.h
@@ -23,7 +23,9 @@ namespace tblgen {
 /// Returns all the op definitions filtered by the user. The filtering is via
 /// command-line option "op-include-regex" and "op-exclude-regex".
 std::vector<llvm::Record *>
-getRequestedOpDefinitions(const llvm::RecordKeeper &recordKeeper);
+getRequestedOpDefinitions(const llvm::RecordKeeper &recordKeeper,
+                          const std::string &opIncFilter,
+                          const std::string &opExcFilter);
 
 /// Checks whether `str` is a Python keyword or would shadow builtin function.
 /// Regenerate using python -c"print(set(sorted(__import__('keyword').kwlist)))"
@@ -31,7 +33,16 @@ bool isPythonReserved(llvm::StringRef str);
 
 /// Shard the op defintions into the number of shards set by "op-shard-count".
 void shardOpDefinitions(ArrayRef<llvm::Record *> defs,
-                        SmallVectorImpl<ArrayRef<llvm::Record *>> &shardedDefs);
+                        SmallVectorImpl<ArrayRef<llvm::Record *>> &shardedDefs,
+                        unsigned shardOpDefinitions);
+
+bool emitOpDecls(const llvm::RecordKeeper &recordKeeper, raw_ostream &os,
+                 const std::string &opIncFilter, const std::string &opExcFilter,
+                 unsigned opShardCount, bool formatErrorIsFatal);
+
+bool emitOpDefs(const llvm::RecordKeeper &recordKeeper, raw_ostream &os,
+                const std::string &opIncFilter, const std::string &opExcFilter,
+                unsigned opShardCount, bool formatErrorIsFatal);
 
 } // namespace tblgen
 } // namespace mlir
diff --git a/mlir/include/mlir/TableGen/OpInterfacesGen.h b/mlir/include/mlir/TableGen/OpInterfacesGen.h
new file mode 100644
index 0000000000000..f5d087941f5d6
--- /dev/null
+++ b/mlir/include/mlir/TableGen/OpInterfacesGen.h
@@ -0,0 +1,142 @@
+//===- OpInterfacesGen.h - MLIR operation generator helpers -----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines helpers used in the op interface generators.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MLIR_TOOLS_MLIRTBLGEN_OPINTERFACESGEN_H_
+#define MLIR_TOOLS_MLIRTBLGEN_OPINTERFACESGEN_H_
+
+#include "mlir/Support/LLVM.h"
+#include "mlir/TableGen/Format.h"
+#include "mlir/TableGen/GenInfo.h"
+#include "mlir/TableGen/Interfaces.h"
+#include "llvm/TableGen/Record.h"
+#include <vector>
+
+namespace mlir {
+namespace tblgen {
+
+template <typename GeneratorT>
+struct InterfaceGenRegistration {
+  InterfaceGenRegistration(StringRef genArg, StringRef genDesc)
+      : genDeclArg(("gen-" + genArg + "-interface-decls").str()),
+        genDefArg(("gen-" + genArg + "-interface-defs").str()),
+        genDocArg(("gen-" + genArg + "-interface-docs").str()),
+        genDeclDesc(("Generate " + genDesc + " interface declarations").str()),
+        genDefDesc(("Generate " + genDesc + " interface definitions").str()),
+        genDocDesc(("Generate " + genDesc + " interface documentation").str()),
+        genDecls(genDeclArg, genDeclDesc,
+                 [](const llvm::RecordKeeper &records, raw_ostream &os) {
+                   return GeneratorT(records, os).emitInterfaceDecls();
+                 }),
+        genDefs(genDefArg, genDefDesc,
+                [](const llvm::RecordKeeper &records, raw_ostream &os) {
+                  return GeneratorT(records, os).emitInterfaceDefs();
+                }),
+        genDocs(genDocArg, genDocDesc,
+                [](const llvm::RecordKeeper &records, raw_ostream &os) {
+                  return GeneratorT(records, os).emitInterfaceDocs();
+                }) {}
+
+  std::string genDeclArg, genDefArg, genDocArg;
+  std::string genDeclDesc, genDefDesc, genDocDesc;
+  mlir::GenRegistration genDecls, genDefs, genDocs;
+};
+
+/// This struct is the base generator used when processing tablegen interfaces.
+class InterfaceGenerator {
+public:
+  bool emitInterfaceDefs();
+  bool emitInterfaceDecls();
+  bool emitInterfaceDocs();
+
+protected:
+  InterfaceGenerator(std::vector<llvm::Record *> &&defs, raw_ostream &os)
+      : defs(std::move(defs)), os(os) {}
+
+  void emitConceptDecl(const Interface &interface);
+  void emitModelDecl(const Interface &interface);
+  void emitModelMethodsDef(const Interface &interface);
+  void emitTraitDecl(const Interface &interface, StringRef interfaceName,
+                     StringRef interfaceTraitsName);
+  void emitInterfaceDecl(const Interface &interface);
+
+  /// The set of interface records to emit.
+  std::vector<llvm::Record *> defs;
+  // The stream to emit to.
+  raw_ostream &os;
+  /// The C++ value type of the interface, e.g. Operation*.
+  StringRef valueType;
+  /// The C++ base interface type.
+  StringRef interfaceBaseType;
+  /// The name of the typename for the value template.
+  StringRef valueTemplate;
+  /// The name of the substituion variable for the value.
+  StringRef substVar;
+  /// The format context to use for methods.
+  tblgen::FmtContext nonStaticMethodFmt;
+  tblgen::FmtContext traitMethodFmt;
+  tblgen::FmtContext extraDeclsFmt;
+};
+
+std::vector<llvm::Record *>
+getAllInterfaceDefinitions(const llvm::RecordKeeper &recordKeeper,
+                           StringRef name);
+
+/// A specialized generator for attribute interfaces.
+struct AttrInterfaceGenerator : public InterfaceGenerator {
+  AttrInterfaceGenerator(const llvm::RecordKeeper &records, raw_ostream &os)
+      : InterfaceGenerator(getAllInterfaceDefinitions(records, "Attr"), os) {
+    valueType = "::mlir::...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/92709


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