[llvm-commits] [llvm] r147696 - /llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

[Chad Rosier]

Author: mcrosier
Date: Fri Jan  6 17:45:47 2012
New Revision: 147696

URL: http://llvm.org/viewvc/llvm-project?rev=147696&view=rev
Log:
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Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp?rev=147696&r1=147695&r2=147696&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp Fri Jan  6 17:45:47 2012
@@ -903,6 +903,10 @@
 }
 
 #ifndef NDEBUG
+// Collect per Instruction statistics for fast-isel misses.  Only those
+// instructions that cause the bail are accounted for.  It does not account for
+// instructions higher in the block.  Thus, summing the per instructions stats
+// will not add up to what is reported by NumFastIselFailures.
 static void collectFailStats(const Instruction *I) {
   switch (I->getOpcode()) {
   default: assert (0 && "<Invalid operator> ");