Make printing a warning message optional in CheckBytecodeOutputToConsole.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19240 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/SystemUtils.cpp b/lib/Support/SystemUtils.cpp
index dfb8775..764f6be 100644
--- a/lib/Support/SystemUtils.cpp
+++ b/lib/Support/SystemUtils.cpp
@@ -19,12 +19,15 @@
 
 using namespace llvm;
 
-bool llvm::CheckBytecodeOutputToConsole(std::ostream* stream_to_check) {
+bool llvm::CheckBytecodeOutputToConsole(std::ostream* stream_to_check,
+                                        bool print_warning) {
   if (stream_to_check == &std::cout && sys::Process::StandardOutIsDisplayed()) {
-    std::cerr << "WARNING: You're attempting to print out a bytecode file.\n";
-    std::cerr << "This is inadvisable as it may cause display problems. If\n";
-    std::cerr << "you REALLY want to taste LLVM bytecode first-hand, you can\n";
-    std::cerr << "force output with the `-f' option.\n\n";
+    if (print_warning) {
+      std::cerr << "WARNING: You're attempting to print out a bytecode file.\n";
+      std::cerr << "This is inadvisable as it may cause display problems. If\n";
+      std::cerr << "you REALLY want to taste LLVM bytecode first-hand, you\n";
+      std::cerr << "can force output with the `-f' option.\n\n";
+    }
     return true;
   }
   return false;