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Reduce indentation. No functionality change. 

llvm-svn: 138968
This commit is contained in:
Bill Wendling 2011-09-01 21:29:49 +00:00
parent bf8280ff27
commit a3ba6d3b80
1 changed files with 18 additions and 17 deletions
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35
llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
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@ -1571,25 +1571,26 @@ bool InstCombiner::DoOneIteration(Function &F, unsigned Iteration) {
// Do a quick scan over the function. If we find any blocks that are
// unreachable, remove any instructions inside of them. This prevents
// the instcombine code from having to deal with some bad special cases.
for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
if (!Visited.count(BB)) {
// Delete the instructions backwards, as it has a reduced likelihood of
// having to update as many def-use and use-def chains.
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ) {
Instruction *Inst = &*I++;
if (isa<TerminatorInst>(Inst))
break;
if (!Inst->use_empty())
Inst->replaceAllUsesWith(UndefValue::get(Inst->getType()));
if (isa<LandingPadInst>(Inst))
continue;
if (!isa<DbgInfoIntrinsic>(Inst)) {
++NumDeadInst;
MadeIRChange = true;
}
Inst->eraseFromParent();
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.
for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ) {
Instruction *Inst = &*I++;
if (isa<TerminatorInst>(Inst))
break;
if (!Inst->use_empty())
Inst->replaceAllUsesWith(UndefValue::get(Inst->getType()));
if (isa<LandingPadInst>(Inst))
continue;
if (!isa<DbgInfoIntrinsic>(Inst)) {
++NumDeadInst;
MadeIRChange = true;
}
Inst->eraseFromParent();
}
}
}
while (!Worklist.isEmpty()) {