[llvm-commits] [llvm] r97709 - /llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp

[Chris Lattner]

Author: lattner
Date: Wed Mar  3 19:43:43 2010
New Revision: 97709

URL: http://llvm.org/viewvc/llvm-project?rev=97709&view=rev
Log:
add a comment.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp?rev=97709&r1=97708&r2=97709&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp Wed Mar  3 19:43:43 2010
@@ -413,6 +413,7 @@
 }
 
 void X86DAGToDAGISel::PreprocessISelDAG() {
+  // OptForSize is used in pattern predicates that isel is matching.
   OptForSize = MF->getFunction()->hasFnAttr(Attribute::OptimizeForSize);
   
   for (SelectionDAG::allnodes_iterator I = CurDAG->allnodes_begin(),