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Change the Dominator info and LoopInfo classes to keep track of BasicBlock's, not

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const BasicBlocks


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2337 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-04-28 00:15:57 +00:00
parent 483e14ee04
commit a298d27808
8 changed files with 82 additions and 86 deletions
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lib/Analysis/PostDominators.cpp
+14 -14
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@@ -48,8 +48,8 @@ void cfg::DominatorSet::calcForwardDominatorSet(Function *M) {
DomSetType WorkingSet;
df_iterator<Function*> It = df_begin(M), End = df_end(M);
for ( ; It != End; ++It) {
const BasicBlock *BB = *It;
pred_const_iterator PI = pred_begin(BB), PEnd = pred_end(BB);
BasicBlock *BB = *It;
pred_iterator PI = pred_begin(BB), PEnd = pred_end(BB);
if (PI != PEnd) { // Is there SOME predecessor?
// Loop until we get to a predecessor that has had it's dom set filled
// in at least once. We are guaranteed to have this because we are
@@ -80,7 +80,7 @@ void cfg::DominatorSet::calcForwardDominatorSet(Function *M) {
// only have a single exit node (return stmt), then calculates the post
// dominance sets for the function.
//
void cfg::DominatorSet::calcPostDominatorSet(Function *M) {
void cfg::DominatorSet::calcPostDominatorSet(Function *F) {
// Since we require that the unify all exit nodes pass has been run, we know
// that there can be at most one return instruction in the function left.
// Get it.
@@ -88,8 +88,8 @@ void cfg::DominatorSet::calcPostDominatorSet(Function *M) {
Root = getAnalysis<UnifyFunctionExitNodes>().getExitNode();
if (Root == 0) { // No exit node for the function? Postdomsets are all empty
for (Function::const_iterator MI = M->begin(), ME = M->end(); MI!=ME; ++MI)
Doms[*MI] = DomSetType();
for (Function::iterator FI = F->begin(), FE = F->end(); FI != FE; ++FI)
Doms[*FI] = DomSetType();
return;
}
@@ -101,8 +101,8 @@ void cfg::DominatorSet::calcPostDominatorSet(Function *M) {
DomSetType WorkingSet;
idf_iterator<BasicBlock*> It = idf_begin(Root), End = idf_end(Root);
for ( ; It != End; ++It) {
const BasicBlock *BB = *It;
succ_const_iterator PI = succ_begin(BB), PEnd = succ_end(BB);
BasicBlock *BB = *It;
succ_iterator PI = succ_begin(BB), PEnd = succ_end(BB);
if (PI != PEnd) { // Is there SOME predecessor?
// Loop until we get to a successor that has had it's dom set filled
// in at least once. We are guaranteed to have this because we are
@@ -158,7 +158,7 @@ void cfg::ImmediateDominators::calcIDoms(const DominatorSet &DS) {
//
for (DominatorSet::const_iterator DI = DS.begin(), DEnd = DS.end();
DI != DEnd; ++DI) {
const BasicBlock *BB = DI->first;
BasicBlock *BB = DI->first;
const DominatorSet::DomSetType &Dominators = DI->second;
unsigned DomSetSize = Dominators.size();
if (DomSetSize == 1) continue; // Root node... IDom = null
@@ -237,7 +237,7 @@ void cfg::DominatorTree::calculate(const DominatorSet &DS) {
// Iterate over all nodes in depth first order...
for (df_iterator<BasicBlock*> I = df_begin(Root), E = df_end(Root);
I != E; ++I) {
const BasicBlock *BB = *I;
BasicBlock *BB = *I;
const DominatorSet::DomSetType &Dominators = DS.getDominators(BB);
unsigned DomSetSize = Dominators.size();
if (DomSetSize == 1) continue; // Root node... IDom = null
@@ -278,7 +278,7 @@ void cfg::DominatorTree::calculate(const DominatorSet &DS) {
// Iterate over all nodes in depth first order...
for (idf_iterator<BasicBlock*> I = idf_begin(Root), E = idf_end(Root);
I != E; ++I) {
const BasicBlock *BB = *I;
BasicBlock *BB = *I;
const DominatorSet::DomSetType &Dominators = DS.getDominators(BB);
unsigned DomSetSize = Dominators.size();
if (DomSetSize == 1) continue; // Root node... IDom = null
@@ -332,10 +332,10 @@ const cfg::DominanceFrontier::DomSetType &
cfg::DominanceFrontier::calcDomFrontier(const DominatorTree &DT,
const DominatorTree::Node *Node) {
// Loop over CFG successors to calculate DFlocal[Node]
const BasicBlock *BB = Node->getNode();
BasicBlock *BB = Node->getNode();
DomSetType &S = Frontiers[BB]; // The new set to fill in...
for (succ_const_iterator SI = succ_begin(BB), SE = succ_end(BB);
for (succ_iterator SI = succ_begin(BB), SE = succ_end(BB);
SI != SE; ++SI) {
// Does Node immediately dominate this successor?
if (DT[*SI]->getIDom() != Node)
@@ -365,11 +365,11 @@ const cfg::DominanceFrontier::DomSetType &
cfg::DominanceFrontier::calcPostDomFrontier(const DominatorTree &DT,
const DominatorTree::Node *Node) {
// Loop over CFG successors to calculate DFlocal[Node]
const BasicBlock *BB = Node->getNode();
BasicBlock *BB = Node->getNode();
DomSetType &S = Frontiers[BB]; // The new set to fill in...
if (!Root) return S;
for (pred_const_iterator SI = pred_begin(BB), SE = pred_end(BB);
for (pred_iterator SI = pred_begin(BB), SE = pred_end(BB);
SI != SE; ++SI) {
// Does Node immediately dominate this predeccessor?
if (DT[*SI]->getIDom() != Node)