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[AVR] Prefer BasicBlock::getIterator over Function::begin() 

Thanks to Eli Friedman for the suggestion.

llvm-svn: 314182
This commit is contained in:
Dylan McKay 2017-09-26 01:37:53 +00:00
parent e26b7aafe0
commit 1446eedbc2
1 changed files with 1 additions and 1 deletions
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2
llvm/lib/Target/AVR/AVRISelLowering.cpp
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@ -1471,7 +1471,7 @@ MachineBasicBlock *AVRTargetLowering::insertShift(MachineInstr &MI,
const BasicBlock *LLVM_BB = BB->getBasicBlock();
MachineFunction::iterator I;
for (I = F->begin(); I != F->end() && &(*I) != BB; ++I);
for (I = BB->getIterator(); I != F->end() && &(*I) != BB; ++I);
if (I != F->end()) ++I;
// Create loop block.