Make the SCC printing passes use errs() instead of outs(), as the

other printing passes do, and update the documentation accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111601 91177308-0d34-0410-b5e6-96231b3b80d8

docs/Passes.html

@@ -649,7 +649,7 @@
 <div class="doc_text">
   <p>
   This pass, only available in <code>opt</code>, prints the call graph to
-  standard output in a human-readable form.
+  standard error in a human-readable form.
   </p>
 </div>
 
@@ -660,7 +660,7 @@
 <div class="doc_text">
   <p>
   This pass, only available in <code>opt</code>, prints the SCCs of the call
-  graph to standard output in a human-readable form.
+  graph to standard error in a human-readable form.
   </p>
 </div>
 
@@ -671,7 +671,7 @@
 <div class="doc_text">
   <p>
   This pass, only available in <code>opt</code>, prints the SCCs of each
-  function CFG to standard output in a human-readable form.
+  function CFG to standard error in a human-readable form.
   </p>
 </div>
 

tools/opt/PrintSCC.cpp

@@ -73,18 +73,18 @@ Z("print-callgraph-sccs", "Print SCCs of the Call Graph");
 
 bool CFGSCC::runOnFunction(Function &F) {
   unsigned sccNum = 0;
-  outs() << "SCCs for Function " << F.getName() << " in PostOrder:";
+  errs() << "SCCs for Function " << F.getName() << " in PostOrder:";
   for (scc_iterator<Function*> SCCI = scc_begin(&F),
          E = scc_end(&F); SCCI != E; ++SCCI) {
     std::vector<BasicBlock*> &nextSCC = *SCCI;
-    outs() << "\nSCC #" << ++sccNum << " : ";
+    errs() << "\nSCC #" << ++sccNum << " : ";
     for (std::vector<BasicBlock*>::const_iterator I = nextSCC.begin(),
            E = nextSCC.end(); I != E; ++I)
-      outs() << (*I)->getName() << ", ";
+      errs() << (*I)->getName() << ", ";
     if (nextSCC.size() == 1 && SCCI.hasLoop())
-      outs() << " (Has self-loop).";
+      errs() << " (Has self-loop).";
   }
-  outs() << "\n";
+  errs() << "\n";
 
   return true;
 }
@@ -94,19 +94,19 @@ bool CFGSCC::runOnFunction(Function &F) {
 bool CallGraphSCC::runOnModule(Module &M) {
   CallGraphNode* rootNode = getAnalysis<CallGraph>().getRoot();
   unsigned sccNum = 0;
-  outs() << "SCCs for the program in PostOrder:";
+  errs() << "SCCs for the program in PostOrder:";
   for (scc_iterator<CallGraphNode*> SCCI = scc_begin(rootNode),
          E = scc_end(rootNode); SCCI != E; ++SCCI) {
     const std::vector<CallGraphNode*> &nextSCC = *SCCI;
-    outs() << "\nSCC #" << ++sccNum << " : ";
+    errs() << "\nSCC #" << ++sccNum << " : ";
     for (std::vector<CallGraphNode*>::const_iterator I = nextSCC.begin(),
            E = nextSCC.end(); I != E; ++I)
-      outs() << ((*I)->getFunction() ? (*I)->getFunction()->getNameStr()
+      errs() << ((*I)->getFunction() ? (*I)->getFunction()->getNameStr()
                  : std::string("external node")) << ", ";
     if (nextSCC.size() == 1 && SCCI.hasLoop())
-      outs() << " (Has self-loop).";
+      errs() << " (Has self-loop).";
   }
-  outs() << "\n";
+  errs() << "\n";
 
   return true;
 }