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fit some more code in 80 cols.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50016 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2008-04-21 00:25:49 +00:00
parent 34093a634a
commit 48a80b07bd
1 changed files with 14 additions and 12 deletions
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26
lib/Transforms/Scalar/LoopUnswitch.cpp
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@ -115,12 +115,12 @@ namespace {
LoopProcessWorklist.erase(I); LoopProcessWorklist.erase(I);
} }
/// Split all of the edges from inside the loop to their exit blocks. Update /// Split all of the edges from inside the loop to their exit blocks.
/// the appropriate Phi nodes as we do so. /// Update the appropriate Phi nodes as we do so.
void SplitExitEdges(Loop *L, const SmallVector<BasicBlock *, 8> &ExitBlocks, void SplitExitEdges(Loop *L, const SmallVector<BasicBlock *, 8> &ExitBlocks,
SmallVector<BasicBlock *, 8> &MiddleBlocks); SmallVector<BasicBlock *, 8> &MiddleBlocks);
/// If BB's dominance frontier has a member that is not part of loop L then /// If BB's dominance frontier has a member that is not part of loop L then
/// remove it. Add NewDFMember in BB's dominance frontier. /// remove it. Add NewDFMember in BB's dominance frontier.
void ReplaceLoopExternalDFMember(Loop *L, BasicBlock *BB, void ReplaceLoopExternalDFMember(Loop *L, BasicBlock *BB,
BasicBlock *NewDFMember); BasicBlock *NewDFMember);
@ -644,10 +644,10 @@ void LoopUnswitch::ReplaceLoopExternalDFMember(Loop *L, BasicBlock *BB,
DF->addToFrontier(DFI, NewDFMember); DF->addToFrontier(DFI, NewDFMember);
} }
/// SplitExitEdges - /// SplitExitEdges - Split all of the edges from inside the loop to their exit
/// Split all of the edges from inside the loop to their exit blocks. Update /// blocks. Update the appropriate Phi nodes as we do so.
/// the appropriate Phi nodes as we do so. void LoopUnswitch::SplitExitEdges(Loop *L,
void LoopUnswitch::SplitExitEdges(Loop *L, const SmallVector<BasicBlock *, 8> &ExitBlocks, const SmallVector<BasicBlock *, 8> &ExitBlocks,
SmallVector<BasicBlock *, 8> &MiddleBlocks) { SmallVector<BasicBlock *, 8> &MiddleBlocks) {
for (unsigned i = 0, e = ExitBlocks.size(); i != e; ++i) { for (unsigned i = 0, e = ExitBlocks.size(); i != e; ++i) {
@ -854,8 +854,8 @@ void LoopUnswitch::UnswitchNontrivialCondition(Value *LIC, Constant *Val,
// If LBB's dominance frontier includes DFMember // If LBB's dominance frontier includes DFMember
// such that DFMember is also a member of LoopDF then // such that DFMember is also a member of LoopDF then
// - Remove DFMember from LBB's dominance frontier // - Remove DFMember from LBB's dominance frontier
// - Copy loop exiting blocks', that are dominated by BB, dominance frontier // - Copy loop exiting blocks', that are dominated by BB,
// member in BB's dominance frontier // dominance frontier member in BB's dominance frontier
DominanceFrontier::iterator LBBI = DF->find(LBB); DominanceFrontier::iterator LBBI = DF->find(LBB);
DominanceFrontier::iterator NBBI = DF->find(NBB); DominanceFrontier::iterator NBBI = DF->find(NBB);
@ -874,7 +874,8 @@ void LoopUnswitch::UnswitchNontrivialCondition(Value *LIC, Constant *Val,
// If LBB dominates loop exits then insert loop exit block's DF // If LBB dominates loop exits then insert loop exit block's DF
// into B's DF. // into B's DF.
for(SmallVector<BasicBlock *, 4>::iterator LExitI = ExitingBlocks.begin(), for(SmallVector<BasicBlock *, 4>::iterator
LExitI = ExitingBlocks.begin(),
LExitE = ExitingBlocks.end(); LExitI != LExitE; ++LExitI) { LExitE = ExitingBlocks.end(); LExitI != LExitE; ++LExitI) {
BasicBlock *E = *LExitI; BasicBlock *E = *LExitI;
@ -892,7 +893,8 @@ void LoopUnswitch::UnswitchNontrivialCondition(Value *LIC, Constant *Val,
removeB = true; removeB = true;
} }
// If B's replacement is inserted in DF then now is the time to remove B. // If B's replacement is inserted in DF then now is the time to remove
// B.
if (removeB) { if (removeB) {
DF->removeFromFrontier(LBBI, B); DF->removeFromFrontier(LBBI, B);
if (L->contains(B)) if (L->contains(B))
@ -1158,7 +1160,7 @@ void LoopUnswitch::RewriteLoopBodyWithConditionConstant(Loop *L, Value *LIC,
BranchInst::Create(Split, SI->getSuccessor(i), BranchInst::Create(Split, SI->getSuccessor(i),
ConstantInt::getTrue(), OldTerm); ConstantInt::getTrue(), OldTerm);
LPM->deleteSimpleAnalysisValue(Old->getTerminator(), L); LPM->deleteSimpleAnalysisValue(Old->getTerminator(), L);
Old->getTerminator()->eraseFromParent(); Old->getTerminator()->eraseFromParent();
PHINode *PN; PHINode *PN;