[llvm] r239916 - fix typos in comments; NFC

[Sanjay Patel]

Author: spatel
Date: Wed Jun 17 11:34:48 2015
New Revision: 239916

URL: http://llvm.org/viewvc/llvm-project?rev=239916&view=rev
Log:
fix typos in comments; NFC

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=239916&r1=239915&r2=239916&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp Wed Jun 17 11:34:48 2015
@@ -83,11 +83,11 @@ EnableFMFInDAG("enable-fmf-dag", cl::ini
                 cl::desc("Enable fast-math-flags for DAG nodes"));
 
 // Limit the width of DAG chains. This is important in general to prevent
-// prevent DAG-based analysis from blowing up. For example, alias analysis and
+// DAG-based analysis from blowing up. For example, alias analysis and
 // load clustering may not complete in reasonable time. It is difficult to
 // recognize and avoid this situation within each individual analysis, and
 // future analyses are likely to have the same behavior. Limiting DAG width is
-// the safe approach, and will be especially important with global DAGs.
+// the safe approach and will be especially important with global DAGs.
 //
 // MaxParallelChains default is arbitrarily high to avoid affecting
 // optimization, but could be lowered to improve compile time. Any ld-ld-st-st