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Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,

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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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65382 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-02-24 18:55:53 +00:00
parent 57f0db833d
commit 46bdfb0e6b
21 changed files with 177 additions and 145 deletions
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lib/Analysis/LoopVR.cpp
+1 -1
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@@ -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);