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Add comment to emphasize that the while body is empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66115 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -153,7 +153,7 @@ void CondProp::SimplifyPredecessors(BranchInst *BI) {
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return;
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BasicBlock::iterator BBI = BB->begin();
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BasicBlock::iterator BBE = BB->end();
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while (BBI != BBE && isa<DbgInfoIntrinsic>(++BBI)) ;
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while (BBI != BBE && isa<DbgInfoIntrinsic>(++BBI)) /* empty */;
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if (&*BBI != BI)
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return;
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@ -192,7 +192,7 @@ void CondProp::SimplifyPredecessors(SwitchInst *SI) {
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return;
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BasicBlock::iterator BBI = BB->begin();
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BasicBlock::iterator BBE = BB->end();
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while (BBI != BBE && isa<DbgInfoIntrinsic>(++BBI)) ;
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while (BBI != BBE && isa<DbgInfoIntrinsic>(++BBI)) /* empty */;
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if (&*BBI != SI)
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return;
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