Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,

to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.

llvm-svn: 65382

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Analysis/LoopVR.cpp b/llvm/lib/Analysis/LoopVR.cpp
index d0b77b89f0a..3a7ec7b9886 100644
--- a/llvm/lib/Analysis/LoopVR.cpp
+++ b/llvm/lib/Analysis/LoopVR.cpp
@@ -27,7 +27,7 @@ static RegisterPass<LoopVR> X("loopvr", "Loop Value Ranges", true, true);
 
 /// getRange - determine the range for a particular SCEV within a given Loop
 ConstantRange LoopVR::getRange(SCEVHandle S, Loop *L, ScalarEvolution &SE) {
-  SCEVHandle T = SE.getIterationCount(L);
+  SCEVHandle T = SE.getBackedgeTakenCount(L);
   if (isa<SCEVCouldNotCompute>(T))
     return ConstantRange(cast<IntegerType>(S->getType())->getBitWidth(), true);