Migrated FrontendActions.cpp to the new LLVMTargetMachine code emission API.

Author: matinraayai

flang/lib/Frontend/FrontendActions.cpp

@@ -52,6 +52,7 @@
 #include "llvm/Analysis/TargetLibraryInfo.h"
 #include "llvm/Analysis/TargetTransformInfo.h"
 #include "llvm/Bitcode/BitcodeWriterPass.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/CodeGen/MachineOptimizationRemarkEmitter.h"
 #include "llvm/IR/LLVMRemarkStreamer.h"
 #include "llvm/IR/LegacyPassManager.h"
@@ -919,7 +920,7 @@ getOutputStream(CompilerInstance &ci, llvm::StringRef inFile,
 /// \param [in] codeGenOpts options configuring codegen pipeline
 /// \param [out] os Output stream to emit the generated code to
 static void generateMachineCodeOrAssemblyImpl(clang::DiagnosticsEngine &diags,
-                                              llvm::TargetMachine &tm,
+                                              llvm::LLVMTargetMachine &tm,
                                               BackendActionTy act,
                                               llvm::Module &llvmModule,
                                               const CodeGenOptions &codeGenOpts,
@@ -932,6 +933,7 @@ static void generateMachineCodeOrAssemblyImpl(clang::DiagnosticsEngine &diags,
   // Currently only the legacy pass manager is supported.
   // TODO: Switch to the new PM once it's available in the backend.
   llvm::legacy::PassManager codeGenPasses;
+  llvm::MachineModuleInfo mmi(&tm);
   codeGenPasses.add(
       createTargetTransformInfoWrapperPass(tm.getTargetIRAnalysis()));
 
@@ -943,7 +945,7 @@ static void generateMachineCodeOrAssemblyImpl(clang::DiagnosticsEngine &diags,
   llvm::CodeGenFileType cgft = (act == BackendActionTy::Backend_EmitAssembly)
                                    ? llvm::CodeGenFileType::AssemblyFile
                                    : llvm::CodeGenFileType::ObjectFile;
-  if (tm.addPassesToEmitFile(codeGenPasses, os, nullptr, cgft)) {
+  if (tm.addPassesToEmitFile(codeGenPasses, mmi, os, nullptr, cgft)) {
     unsigned diagID =
         diags.getCustomDiagID(clang::DiagnosticsEngine::Error,
                               "emission of this file type is not supported");
@@ -1369,7 +1371,8 @@ void CodeGenAction::executeAction() {
   if (action == BackendActionTy::Backend_EmitAssembly ||
       action == BackendActionTy::Backend_EmitObj) {
     generateMachineCodeOrAssemblyImpl(
-        diags, targetMachine, action, *llvmModule, codeGenOpts,
+        diags, *static_cast<llvm::LLVMTargetMachine *>(&targetMachine), action,
+        *llvmModule, codeGenOpts,
         ci.isOutputStreamNull() ? *os : ci.getOutputStream());
     return;
   }