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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116664 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer
2010-10-16 08:25:21 +00:00
parent 138abae2a2
commit e70c526d59
4 changed files with 111 additions and 111 deletions
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46
lib/CodeGen/MachineModuleInfo.cpp
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@@ -41,30 +41,30 @@ class MMIAddrLabelMapCallbackPtr : CallbackVH {
public:
MMIAddrLabelMapCallbackPtr() : Map(0) {}
MMIAddrLabelMapCallbackPtr(Value *V) : CallbackVH(V), Map(0) {}
void setPtr(BasicBlock *BB) {
ValueHandleBase::operator=(BB);
}
void setMap(MMIAddrLabelMap *map) { Map = map; }
virtual void deleted();
virtual void allUsesReplacedWith(Value *V2);
};
class MMIAddrLabelMap {
MCContext &Context;
struct AddrLabelSymEntry {
/// Symbols - The symbols for the label. This is a pointer union that is
/// either one symbol (the common case) or a list of symbols.
PointerUnion<MCSymbol *, std::vector<MCSymbol*>*> Symbols;
Function *Fn; // The containing function of the BasicBlock.
unsigned Index; // The index in BBCallbacks for the BasicBlock.
};
DenseMap<AssertingVH<BasicBlock>, AddrLabelSymEntry> AddrLabelSymbols;
/// BBCallbacks - Callbacks for the BasicBlock's that we have entries for. We
/// use this so we get notified if a block is deleted or RAUWd.
std::vector<MMIAddrLabelMapCallbackPtr> BBCallbacks;
@@ -76,23 +76,23 @@ class MMIAddrLabelMap {
DenseMap<AssertingVH<Function>, std::vector<MCSymbol*> >
DeletedAddrLabelsNeedingEmission;
public:
MMIAddrLabelMap(MCContext &context) : Context(context) {}
~MMIAddrLabelMap() {
assert(DeletedAddrLabelsNeedingEmission.empty() &&
"Some labels for deleted blocks never got emitted");
// Deallocate any of the 'list of symbols' case.
for (DenseMap<AssertingVH<BasicBlock>, AddrLabelSymEntry>::iterator
I = AddrLabelSymbols.begin(), E = AddrLabelSymbols.end(); I != E; ++I)
if (I->second.Symbols.is<std::vector<MCSymbol*>*>())
delete I->second.Symbols.get<std::vector<MCSymbol*>*>();
}
MCSymbol *getAddrLabelSymbol(BasicBlock *BB);
std::vector<MCSymbol*> getAddrLabelSymbolToEmit(BasicBlock *BB);
void takeDeletedSymbolsForFunction(Function *F,
void takeDeletedSymbolsForFunction(Function *F,
std::vector<MCSymbol*> &Result);
void UpdateForDeletedBlock(BasicBlock *BB);
@@ -104,7 +104,7 @@ MCSymbol *MMIAddrLabelMap::getAddrLabelSymbol(BasicBlock *BB) {
assert(BB->hasAddressTaken() &&
"Shouldn't get label for block without address taken");
AddrLabelSymEntry &Entry = AddrLabelSymbols[BB];
// If we already had an entry for this block, just return it.
if (!Entry.Symbols.isNull()) {
assert(BB->getParent() == Entry.Fn && "Parent changed");
@@ -112,7 +112,7 @@ MCSymbol *MMIAddrLabelMap::getAddrLabelSymbol(BasicBlock *BB) {
return Entry.Symbols.get<MCSymbol*>();
return (*Entry.Symbols.get<std::vector<MCSymbol*>*>())[0];
}
// Otherwise, this is a new entry, create a new symbol for it and add an
// entry to BBCallbacks so we can be notified if the BB is deleted or RAUWd.
BBCallbacks.push_back(BB);
@@ -129,9 +129,9 @@ MMIAddrLabelMap::getAddrLabelSymbolToEmit(BasicBlock *BB) {
assert(BB->hasAddressTaken() &&
"Shouldn't get label for block without address taken");
AddrLabelSymEntry &Entry = AddrLabelSymbols[BB];
std::vector<MCSymbol*> Result;
// If we already had an entry for this block, just return it.
if (Entry.Symbols.isNull())
Result.push_back(getAddrLabelSymbol(BB));
@@ -152,7 +152,7 @@ takeDeletedSymbolsForFunction(Function *F, std::vector<MCSymbol*> &Result) {
// If there are no entries for the function, just return.
if (I == DeletedAddrLabelsNeedingEmission.end()) return;
// Otherwise, take the list.
std::swap(Result, I->second);
DeletedAddrLabelsNeedingEmission.erase(I);
@@ -175,7 +175,7 @@ void MMIAddrLabelMap::UpdateForDeletedBlock(BasicBlock *BB) {
if (MCSymbol *Sym = Entry.Symbols.dyn_cast<MCSymbol*>()) {
if (Sym->isDefined())
return;
// If the block is not yet defined, we need to emit it at the end of the
// function. Add the symbol to the DeletedAddrLabelsNeedingEmission list
// for the containing Function. Since the block is being deleted, its
@@ -187,7 +187,7 @@ void MMIAddrLabelMap::UpdateForDeletedBlock(BasicBlock *BB) {
for (unsigned i = 0, e = Syms->size(); i != e; ++i) {
MCSymbol *Sym = (*Syms)[i];
if (Sym->isDefined()) continue; // Ignore already emitted labels.
// If the block is not yet defined, we need to emit it at the end of the
// function. Add the symbol to the DeletedAddrLabelsNeedingEmission list
// for the containing Function. Since the block is being deleted, its
@@ -195,7 +195,7 @@ void MMIAddrLabelMap::UpdateForDeletedBlock(BasicBlock *BB) {
// 'Entry'.
DeletedAddrLabelsNeedingEmission[Entry.Fn].push_back(Sym);
}
// The entry is deleted, free the memory associated with the symbol list.
delete Syms;
}
@@ -225,7 +225,7 @@ void MMIAddrLabelMap::UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New) {
SymList->push_back(PrevSym);
NewEntry.Symbols = SymList;
}
std::vector<MCSymbol*> *SymList =
NewEntry.Symbols.get<std::vector<MCSymbol*>*>();
@@ -234,7 +234,7 @@ void MMIAddrLabelMap::UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New) {
SymList->push_back(Sym);
return;
}
// Otherwise, concatenate the list.
std::vector<MCSymbol*> *Syms =OldEntry.Symbols.get<std::vector<MCSymbol*>*>();
SymList->insert(SymList->end(), Syms->begin(), Syms->end());
@@ -272,7 +272,7 @@ MachineModuleInfo::MachineModuleInfo()
MachineModuleInfo::~MachineModuleInfo() {
delete ObjFileMMI;
// FIXME: Why isn't doFinalization being called??
//assert(AddrLabelSymbols == 0 && "doFinalization not called");
delete AddrLabelSymbols;
@@ -472,7 +472,7 @@ void MachineModuleInfo::TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap) {
(LPMap && (*LPMap)[BeginLabel] != 0)) &&
(EndLabel->isDefined() ||
(LPMap && (*LPMap)[EndLabel] != 0))) continue;
LandingPad.BeginLabels.erase(LandingPad.BeginLabels.begin() + j);
LandingPad.EndLabels.erase(LandingPad.EndLabels.begin() + j);
--j, --e;