cleanup: scc_iterator consumers should use isAtEnd

No functional change.  Updated loops from:

    for (I = scc_begin(), E = scc_end(); I != E; ++I)

to:

    for (I = scc_begin(); !I.isAtEnd(); ++I)

for teh win.

llvm-svn: 200789

2 files changed, 3 insertions, 5 deletions

diff --git a/llvm/lib/Transforms/IPO/FunctionAttrs.cpp b/llvm/lib/Transforms/IPO/FunctionAttrs.cpp
index 92d2f79fa73..5ff55b0169e 100644
--- a/llvm/lib/Transforms/IPO/FunctionAttrs.cpp
+++ b/llvm/lib/Transforms/IPO/FunctionAttrs.cpp
@@ -604,8 +604,7 @@ bool FunctionAttrs::AddArgumentAttrs(const CallGraphSCC &SCC) {
   // made.  If the definition doesn't have a 'nocapture' attribute by now, it
   // captures.
 
-  for (scc_iterator<ArgumentGraph*> I = scc_begin(&AG), E = scc_end(&AG);
-       I != E; ++I) {
+  for (scc_iterator<ArgumentGraph*> I = scc_begin(&AG); !I.isAtEnd(); ++I) {
     std::vector<ArgumentGraphNode*> &ArgumentSCC = *I;
     if (ArgumentSCC.size() == 1) {
       if (!ArgumentSCC[0]->Definition) continue;  // synthetic root node
diff --git a/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp b/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
index 707da30192c..60382889ef0 100644
--- a/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
+++ b/llvm/lib/Transforms/Scalar/StructurizeCFG.cpp
@@ -277,9 +277,8 @@ bool StructurizeCFG::doInitialization(Region *R, RGPassManager &RGM) {
 
 /// \brief Build up the general order of nodes
 void StructurizeCFG::orderNodes() {
-  scc_iterator<Region *> I = scc_begin(ParentRegion),
-                         E = scc_end(ParentRegion);
-  for (Order.clear(); I != E; ++I) {
+  scc_iterator<Region *> I = scc_begin(ParentRegion);
+  for (Order.clear(); !I.isAtEnd(); ++I) {
     std::vector<RegionNode *> &Nodes = *I;
     Order.append(Nodes.begin(), Nodes.end());
   }