Initial scaffolding for an -emit-llvm mode. This requires the LLVM VMCore

library to be built for the driver to link.

llvm-svn: 39495

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/Driver/clang.cpp b/clang/Driver/clang.cpp
index 102b52730e0..670c3b79eea 100644
--- a/clang/Driver/clang.cpp
+++ b/clang/Driver/clang.cpp
@@ -52,6 +52,7 @@ static cl::opt<bool>
 Stats("stats", cl::desc("Print performance metrics and statistics"));
 
 enum ProgActions {
+  EmitLLVM,                     // Emit a .ll file.
   ParseASTPrint,                // Parse ASTs and print them.
   ParseAST,                     // Parse ASTs.
   ParsePrintCallbacks,          // Parse and print each callback.
@@ -82,6 +83,8 @@ ProgAction(cl::desc("Choose output type:"), cl::ZeroOrMore,
                         "Run parser and build ASTs"),
              clEnumValN(ParseASTPrint, "parse-ast-print",
                         "Run parser, build ASTs, then print ASTs"),
+             clEnumValN(EmitLLVM, "emit-llvm",
+                        "Build ASTs then convert to LLVM, emit .ll file"),
              clEnumValEnd));
 
 //===----------------------------------------------------------------------===//
@@ -1141,6 +1144,9 @@ static void ProcessInputFile(const std::string &InFile,
   case ParseASTPrint:
     PrintASTs(PP, MainFileID);
     break;
+  case EmitLLVM:
+    EmitLLVMFromASTs(PP, MainFileID, Stats);
+    break;
   }
   
   if (Stats) {