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[oota-llvm.git] / lib / Target / TargetMachine.cpp

diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index 6c00a3f492b9b83c70164032c795856cc3555d5a..15164ca28dfc0a59f82bf593b9b74cc4670ff0f9 100644 (file)
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -33,6 +33,7 @@ namespace llvm {
   bool ExceptionHandling;
   Reloc::Model RelocationModel;
   CodeModel::Model CMModel;
+  bool PerformTailCallOpt;
 }
 namespace {
   cl::opt<bool, true> PrintCode("print-machineinstrs",
@@ -116,6 +117,12 @@ namespace {
       clEnumValN(CodeModel::Large, "large",
                  "  Large code model"),
       clEnumValEnd));
+
+  cl::opt<bool, true>
+  EnablePerformTailCallOpt("tailcallopt",
+                           cl::desc("Turn on tail call optimization."),
+                           cl::location(PerformTailCallOpt),
+                           cl::init(false));
 }
 
 //---------------------------------------------------------------------------