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fix typos; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240592 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -134,8 +134,7 @@ static bool iterativelySimplifyCFG(Function &F, const TargetTransformInfo &TTI,
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while (LocalChange) {
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LocalChange = false;
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// Loop over all of the basic blocks and remove them if they are unneeded...
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//
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// Loop over all of the basic blocks and remove them if they are unneeded.
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for (Function::iterator BBIt = F.begin(); BBIt != F.end(); ) {
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if (SimplifyCFG(BBIt++, TTI, BonusInstThreshold, AC)) {
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LocalChange = true;
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@ -159,7 +158,7 @@ static bool simplifyFunctionCFG(Function &F, const TargetTransformInfo &TTI,
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// iterativelySimplifyCFG can (rarely) make some loops dead. If this happens,
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// removeUnreachableBlocks is needed to nuke them, which means we should
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// iterate between the two optimizations. We structure the code like this to
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// avoid reruning iterativelySimplifyCFG if the second pass of
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// avoid rerunning iterativelySimplifyCFG if the second pass of
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// removeUnreachableBlocks doesn't do anything.
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if (!removeUnreachableBlocks(F))
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return true;
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