1 files changed, 93 insertions, 0 deletions
diff --git a/mlir/lib/Support/TranslateClParser.cpp b/mlir/lib/Support/TranslateClParser.cpp
new file mode 100644
index 00000000000..1f538cb531d
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+++ b/mlir/lib/Support/TranslateClParser.cpp
@@ -0,0 +1,93 @@
+//===- TranslateClParser.h - Translations command line parser -------------===//
+//
+// Part of the MLIR 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 contains custom command line parser for translations.
+//
+//===----------------------------------------------------------------------===//
+
+#include "mlir/Support/TranslateClParser.h"
+
+#include "mlir/Analysis/Verifier.h"
+#include "mlir/IR/MLIRContext.h"
+#include "mlir/IR/Module.h"
+#include "mlir/Parser.h"
+#include "mlir/Support/LogicalResult.h"
+#include "mlir/Translation.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/FileUtilities.h"
+#include "llvm/Support/SourceMgr.h"
+#include "llvm/Support/ToolOutputFile.h"
+
+using namespace mlir;
+
+// Storage for the translation function wrappers that survive the parser.
+static SmallVector<TranslateFunction, 16> wrapperStorage;
+
+static LogicalResult printMLIROutput(ModuleOp module, raw_ostream &os) {
+  if (failed(verify(module)))
+    return failure();
+  module.print(os);
+  return success();
+}
+
+TranslationParser::TranslationParser(llvm::cl::Option &opt)
+    : llvm::cl::parser<const TranslateFunction *>(opt) {
+  const auto &toMLIRRegistry = getTranslationToMLIRRegistry();
+  const auto &fromMLIRRegistry = getTranslationFromMLIRRegistry();
+  const auto &fileToFileRegistry = getTranslationRegistry();
+
+  // Reserve the required capacity upfront so that pointers are not
+  // invalidated on reallocation.
+  wrapperStorage.reserve(toMLIRRegistry.size() + fromMLIRRegistry.size() +
+                         fileToFileRegistry.size());
+  for (const auto &kv : toMLIRRegistry) {
+    TranslateSourceMgrToMLIRFunction function = kv.second;
+    TranslateFunction wrapper = [function](llvm::SourceMgr &sourceMgr,
+                                           raw_ostream &output,
+                                           MLIRContext *context) {
+      OwningModuleRef module = function(sourceMgr, context);
+      if (!module)
+        return failure();
+      return printMLIROutput(*module, output);
+    };
+    wrapperStorage.emplace_back(std::move(wrapper));
+
+    addLiteralOption(kv.first(), &wrapperStorage.back(), kv.first());
+  }
+
+  for (const auto &kv : fromMLIRRegistry) {
+    TranslateFromMLIRFunction function = kv.second;
+    TranslateFunction wrapper = [function](llvm::SourceMgr &sourceMgr,
+                                           raw_ostream &output,
+                                           MLIRContext *context) {
+      auto module = OwningModuleRef(parseSourceFile(sourceMgr, context));
+      if (!module)
+        return failure();
+      return function(module.get(), output);
+    };
+    wrapperStorage.emplace_back(std::move(wrapper));
+
+    addLiteralOption(kv.first(), &wrapperStorage.back(), kv.first());
+  }
+  for (const auto &kv : fileToFileRegistry) {
+    wrapperStorage.emplace_back(kv.second);
+    addLiteralOption(kv.first(), &wrapperStorage.back(), kv.first());
+  }
+}
+
+void TranslationParser::printOptionInfo(const llvm::cl::Option &O,
+                                        size_t GlobalWidth) const {
+  TranslationParser *TP = const_cast<TranslationParser *>(this);
+  llvm::array_pod_sort(TP->Values.begin(), TP->Values.end(),
+                       [](const TranslationParser::OptionInfo *VT1,
+                          const TranslationParser::OptionInfo *VT2) {
+                         return VT1->Name.compare(VT2->Name);
+                       });
+  using llvm::cl::parser;
+  parser<const TranslateFunction *>::printOptionInfo(O, GlobalWidth);
+}