[llvm] r232697 - SelectionDAGBuilder: update comment in HandlePHINodesInSuccessorBlocks.

[Hans Wennborg]

Author: hans
Date: Wed Mar 18 19:57:51 2015
New Revision: 232697

URL: http://llvm.org/viewvc/llvm-project?rev=232697&view=rev
Log:
SelectionDAGBuilder: update comment in HandlePHINodesInSuccessorBlocks.

>From what I can tell, the code is checking for PHIs that expect any value from
this block, not just constants.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp?rev=232697&r1=232696&r2=232697&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp Wed Mar 18 19:57:51 2015
@@ -7737,8 +7737,8 @@ SelectionDAGBuilder::HandlePHINodesInSuc
 
   SmallPtrSet<MachineBasicBlock *, 4> SuccsHandled;
 
-  // Check successor nodes' PHI nodes that expect a constant to be available
-  // from this block.
+  // Check PHI nodes in successors that expect a value to be available from this
+  // block.
   for (unsigned succ = 0, e = TI->getNumSuccessors(); succ != e; ++succ) {
     const BasicBlock *SuccBB = TI->getSuccessor(succ);
     if (!isa<PHINode>(SuccBB->begin())) continue;