Teach -callgraph to always print the callgraph (as the

description says it does), not just when -analyze is
used as well.  This means printing to stderr, so adjust
some tests.

llvm-svn: 56337

llvm/test/Analysis/CallGraph/2008-09-09-DirectCall.ll

@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | opt -analyze -callgraph -disable-output | grep {Calls function 'callee'} | count 2
+; RUN: llvm-as < %s | opt -callgraph -disable-output |& grep {Calls function 'callee'} | count 2
 
 define internal void @callee(...) {
 entry:

llvm/test/Analysis/CallGraph/2008-09-09-UsedByGlobal.ll

@@ -1,4 +1,4 @@
-; RUN: llvm-as < %s | opt -analyze -callgraph -disable-output | grep {Calls function}
+; RUN: llvm-as < %s | opt -callgraph -disable-output |& grep {Calls function}
 
 @a = global void ()* @f		; <void ()**> [#uses=0]
 

llvm/test/Other/2002-01-31-CallGraph.ll

@@ -1,6 +1,6 @@
 ;  Call graph construction crash: Not handling indirect calls right
 ;
-; RUN: llvm-as < %s | opt -analyze -callgraph
+; RUN: llvm-as < %s | opt -analyze -callgraph >& /dev/null
 ;
 
         %FunTy = type i32 (i32)

llvm/tools/opt/AnalysisWrappers.cpp

@@ -75,10 +75,9 @@ namespace {
       AU.setPreservesAll();
       AU.addRequiredTransitive<CallGraph>();
     }
-    virtual bool runOnModule(Module &M) { return false; }
-
-    virtual void print(std::ostream &OS, const Module *M) const {
-      getAnalysis<CallGraph>().print(OS, M);
+    virtual bool runOnModule(Module &M) {
+      getAnalysis<CallGraph>().print(std::cerr, &M);
+      return false;
     }
   };