Update comments to reflect reality.

llvm-svn: 139023
This commit is contained in:
Bill Wendling 2011-09-02 18:43:33 +00:00
parent 0a57375a28
commit a336e70573
2 changed files with 2 additions and 4 deletions

View File

@ -1574,8 +1574,7 @@ bool InstCombiner::DoOneIteration(Function &F, unsigned Iteration) {
for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
if (Visited.count(BB)) continue;
// Delete the instructions backwards, as it has a reduced likelihood of
// having to update as many def-use and use-def chains.
// Delete the instructions.
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ) {
Instruction *Inst = &*I++;
if (isa<TerminatorInst>(Inst))

View File

@ -1686,8 +1686,7 @@ static void DeleteInstructionInBlock(BasicBlock *BB) {
if (isa<TerminatorInst>(BB->begin()))
return;
// Delete the instructions backwards, as it has a reduced likelihood of
// having to update as many def-use and use-def chains.
// Delete the instructions.
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ) {
Instruction *Inst = &*I++;
if (isa<TerminatorInst>(Inst))