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

Thanks to Eli Friedman for the suggestion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@314182 91177308-0d34-0410-b5e6-96231b3b80d8
hacxman · Sep 26, 2017 · c35197f · c35197f
1 parent fca6e8b
commit c35197f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/Target/AVR/AVRISelLowering.cpp b/lib/Target/AVR/AVRISelLowering.cpp
@@ -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.