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[RewriteStatepointsForGC] clang-format file

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Format the entire file to reduce diff of change to follow.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234656 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Philip Reames 2015-04-10 22:34:56 +00:00
parent 306699f8ca
commit 50baf8e89d
1 changed files with 57 additions and 58 deletions
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115
lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
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@ -49,11 +49,11 @@ static cl::opt<bool> TraceLSP("trace-rewrite-statepoints", cl::Hidden,
// Print the liveset found at the insert location
static cl::opt<bool> PrintLiveSet("spp-print-liveset", cl::Hidden,
cl::init(false));
static cl::opt<bool> PrintLiveSetSize("spp-print-liveset-size",
cl::Hidden, cl::init(false));
static cl::opt<bool> PrintLiveSetSize("spp-print-liveset-size", cl::Hidden,
cl::init(false));
// Print out the base pointers for debugging
static cl::opt<bool> PrintBasePointers("spp-print-base-pointers",
cl::Hidden, cl::init(false));
static cl::opt<bool> PrintBasePointers("spp-print-base-pointers", cl::Hidden,
cl::init(false));
namespace {
struct RewriteStatepointsForGC : public FunctionPass {
@ -134,7 +134,7 @@ static bool isGCPointerType(const Type *T) {
// Return true if this type is one which a) is a gc pointer or contains a GC
// pointer and b) is of a type this code expects to encounter as a live value.
// (The insertion code will assert that a type which matches (a) and not (b)
// is not encountered.)
// is not encountered.)
static bool isHandledGCPointerType(Type *T) {
// We fully support gc pointers
if (isGCPointerType(T))
@ -151,17 +151,16 @@ static bool isHandledGCPointerType(Type *T) {
/// Returns true if this type contains a gc pointer whether we know how to
/// handle that type or not.
static bool containsGCPtrType(Type *Ty) {
if(isGCPointerType(Ty))
if (isGCPointerType(Ty))
return true;
if (VectorType *VT = dyn_cast<VectorType>(Ty))
return isGCPointerType(VT->getScalarType());
if (ArrayType *AT = dyn_cast<ArrayType>(Ty))
return containsGCPtrType(AT->getElementType());
if (StructType *ST = dyn_cast<StructType>(Ty))
return std::any_of(ST->subtypes().begin(), ST->subtypes().end(),
[](Type *SubType) {
return containsGCPtrType(SubType);
});
return std::any_of(
ST->subtypes().begin(), ST->subtypes().end(),
[](Type *SubType) { return containsGCPtrType(SubType); });
return false;
}
@ -325,7 +324,7 @@ analyzeParsePointLiveness(DominatorTree &DT, const CallSite &CS,
}
/// If we can trivially determine that this vector contains only base pointers,
/// return the base instruction.
/// return the base instruction.
static Value *findBaseOfVector(Value *I) {
assert(I->getType()->isVectorTy() &&
cast<VectorType>(I->getType())->getElementType()->isPointerTy() &&
@ -347,7 +346,7 @@ static Value *findBaseOfVector(Value *I) {
if (isa<UndefValue>(I))
// utterly meaningless, but useful for dealing with partially optimized
// code.
return I;
return I;
// Due to inheritance, this must be _after_ the global variable and undef
// checks
@ -401,7 +400,7 @@ static Value *findBaseDefiningValue(Value *I) {
if (isa<UndefValue>(I))
// utterly meaningless, but useful for dealing with
// partially optimized code.
return I;
return I;
// Due to inheritance, this must be _after_ the global variable and undef
// checks
@ -476,9 +475,9 @@ static Value *findBaseDefiningValue(Value *I) {
// predicate. From the perspective of base pointers, we just treat it
// like a load.
return I;
assert(!isa<AtomicRMWInst>(I) && "Xchg handled above, all others are "
"binary ops which don't apply to pointers");
"binary ops which don't apply to pointers");
// The aggregate ops. Aggregates can either be in the heap or on the
// stack, but in either case, this is simply a field load. As a result,
@ -495,7 +494,7 @@ static Value *findBaseDefiningValue(Value *I) {
// return a value which dynamically selects from amoung several base
// derived pointers (each with it's own base potentially). It's the job of
// the caller to resolve these.
assert((isa<SelectInst>(I) || isa<PHINode>(I)) &&
assert((isa<SelectInst>(I) || isa<PHINode>(I)) &&
"missing instruction case in findBaseDefiningValing");
return I;
}
@ -696,7 +695,7 @@ static Value *findBasePointer(Value *I, DefiningValueMapTy &cache,
done = true;
// Since we're adding elements to 'states' as we run, we can't keep
// iterators into the set.
SmallVector<Value*, 16> Keys;
SmallVector<Value *, 16> Keys;
Keys.reserve(states.size());
for (auto Pair : states) {
Value *V = Pair.first;
@ -786,7 +785,7 @@ static Value *findBasePointer(Value *I, DefiningValueMapTy &cache,
// We want to keep naming deterministic in the loop that follows, so
// sort the keys before iteration. This is useful in allowing us to
// write stable tests. Note that there is no invalidation issue here.
SmallVector<Value*, 16> Keys;
SmallVector<Value *, 16> Keys;
Keys.reserve(states.size());
for (auto Pair : states) {
Value *V = Pair.first;
@ -801,7 +800,7 @@ static Value *findBasePointer(Value *I, DefiningValueMapTy &cache,
assert(!state.isUnknown() && "Optimistic algorithm didn't complete!");
if (!state.isConflict())
continue;
if (isa<PHINode>(v)) {
int num_preds =
std::distance(pred_begin(v->getParent()), pred_end(v->getParent()));
@ -847,7 +846,7 @@ static Value *findBasePointer(Value *I, DefiningValueMapTy &cache,
assert(!state.isUnknown() && "Optimistic algorithm didn't complete!");
if (!state.isConflict())
continue;
if (PHINode *basephi = dyn_cast<PHINode>(state.getBase())) {
PHINode *phi = cast<PHINode>(v);
unsigned NumPHIValues = phi->getNumIncomingValues();
@ -988,14 +987,15 @@ static Value *findBasePointer(Value *I, DefiningValueMapTy &cache,
// post condition: PointerToBase contains one (derived, base) pair for every
// pointer in live. Note that derived can be equal to base if the original
// pointer was a base pointer.
static void findBasePointers(const StatepointLiveSetTy &live,
DenseMap<llvm::Value *, llvm::Value *> &PointerToBase,
DominatorTree *DT, DefiningValueMapTy &DVCache,
DenseSet<llvm::Value *> &NewInsertedDefs) {
static void
findBasePointers(const StatepointLiveSetTy &live,
DenseMap<llvm::Value *, llvm::Value *> &PointerToBase,
DominatorTree *DT, DefiningValueMapTy &DVCache,
DenseSet<llvm::Value *> &NewInsertedDefs) {
// For the naming of values inserted to be deterministic - which makes for
// much cleaner and more stable tests - we need to assign an order to the
// live values. DenseSets do not provide a deterministic order across runs.
SmallVector<Value*, 64> Temp;
SmallVector<Value *, 64> Temp;
Temp.insert(Temp.end(), live.begin(), live.end());
std::sort(Temp.begin(), Temp.end(), order_by_name);
for (Value *ptr : Temp) {
@ -1010,7 +1010,7 @@ static void findBasePointers(const StatepointLiveSetTy &live,
// If you see this trip and like to live really dangerously, the code should
// be correct, just with idioms the verifier can't handle. You can try
// disabling the verifier at your own substaintial risk.
assert(!isa<ConstantPointerNull>(base) &&
assert(!isa<ConstantPointerNull>(base) &&
"the relocation code needs adjustment to handle the relocation of "
"a null pointer constant without causing false positives in the "
"safepoint ir verifier.");
@ -1024,13 +1024,14 @@ static void findBasePointers(DominatorTree &DT, DefiningValueMapTy &DVCache,
PartiallyConstructedSafepointRecord &result) {
DenseMap<llvm::Value *, llvm::Value *> PointerToBase;
DenseSet<llvm::Value *> NewInsertedDefs;
findBasePointers(result.liveset, PointerToBase, &DT, DVCache, NewInsertedDefs);
findBasePointers(result.liveset, PointerToBase, &DT, DVCache,
NewInsertedDefs);
if (PrintBasePointers) {
// Note: Need to print these in a stable order since this is checked in
// some tests.
errs() << "Base Pairs (w/o Relocation):\n";
SmallVector<Value*, 64> Temp;
SmallVector<Value *, 64> Temp;
Temp.reserve(PointerToBase.size());
for (auto Pair : PointerToBase) {
Temp.push_back(Pair.first);
@ -1038,8 +1039,8 @@ static void findBasePointers(DominatorTree &DT, DefiningValueMapTy &DVCache,
std::sort(Temp.begin(), Temp.end(), order_by_name);
for (Value *Ptr : Temp) {
Value *Base = PointerToBase[Ptr];
errs() << " derived %" << Ptr->getName() << " base %"
<< Base->getName() << "\n";
errs() << " derived %" << Ptr->getName() << " base %" << Base->getName()
<< "\n";
}
}
@ -1091,8 +1092,7 @@ static void fixupLiveness(DominatorTree &DT, const CallSite &CS,
static void fixupLiveReferences(
Function &F, DominatorTree &DT, Pass *P,
const DenseSet<llvm::Value *> &allInsertedDefs,
ArrayRef<CallSite> toUpdate,
const DenseSet<llvm::Value *> &allInsertedDefs, ArrayRef<CallSite> toUpdate,
MutableArrayRef<struct PartiallyConstructedSafepointRecord> records) {
for (size_t i = 0; i < records.size(); i++) {
struct PartiallyConstructedSafepointRecord &info = records[i];
@ -1189,7 +1189,7 @@ static void CreateGCRelocates(ArrayRef<llvm::Value *> liveVariables,
// combination. This results is some blow up the function declarations in
// the IR, but removes the need for argument bitcasts which shrinks the IR
// greatly and makes it much more readable.
SmallVector<Type *, 1> types; // one per 'any' type
SmallVector<Type *, 1> types; // one per 'any' type
types.push_back(liveVariables[i]->getType()); // result type
Value *gc_relocate_decl = Intrinsic::getDeclaration(
M, Intrinsic::experimental_gc_relocate, types);
@ -1342,7 +1342,7 @@ makeStatepointExplicitImpl(const CallSite &CS, /* to replace */
// Take the name of the original value call if it had one.
token->takeName(CS.getInstruction());
// The GCResult is already inserted, we just need to find it
// The GCResult is already inserted, we just need to find it
#ifndef NDEBUG
Instruction *toReplace = CS.getInstruction();
assert((toReplace->hasNUses(0) || toReplace->hasNUses(1)) &&
@ -1360,7 +1360,6 @@ makeStatepointExplicitImpl(const CallSite &CS, /* to replace */
// Second, create a gc.relocate for every live variable
CreateGCRelocates(liveVariables, live_start, basePtrs, token, Builder);
}
namespace {
@ -1392,7 +1391,7 @@ static void stablize_order(SmallVectorImpl<Value *> &basevec,
// Replace an existing gc.statepoint with a new one and a set of gc.relocates
// which make the relocations happening at this safepoint explicit.
//
//
// WARNING: Does not do any fixup to adjust users of the original live
// values. That's the callers responsibility.
static void
@ -1470,8 +1469,8 @@ static void relocationViaAlloca(
// record initial number of (static) allocas; we'll check we have the same
// number when we get done.
int InitialAllocaNum = 0;
for (auto I = F.getEntryBlock().begin(), E = F.getEntryBlock().end();
I != E; I++)
for (auto I = F.getEntryBlock().begin(), E = F.getEntryBlock().end(); I != E;
I++)
if (isa<AllocaInst>(*I))
InitialAllocaNum++;
#endif
@ -1513,8 +1512,8 @@ static void relocationViaAlloca(
// In case if it was invoke statepoint
// we will insert stores for exceptional path gc relocates.
if (isa<InvokeInst>(Statepoint)) {
insertRelocationStores(info.UnwindToken->users(),
allocaMap, visitedLiveValues);
insertRelocationStores(info.UnwindToken->users(), allocaMap,
visitedLiveValues);
}
#ifndef NDEBUG
@ -1544,7 +1543,7 @@ static void relocationViaAlloca(
};
// Insert the clobbering stores. These may get intermixed with the
// gc.results and gc.relocates, but that's fine.
// gc.results and gc.relocates, but that's fine.
if (auto II = dyn_cast<InvokeInst>(Statepoint)) {
InsertClobbersAt(II->getNormalDest()->getFirstInsertionPt());
InsertClobbersAt(II->getUnwindDest()->getFirstInsertionPt());
@ -1611,7 +1610,7 @@ static void relocationViaAlloca(
assert(!inst->isTerminator() &&
"The only TerminatorInst that can produce a value is "
"InvokeInst which is handled above.");
store->insertAfter(inst);
store->insertAfter(inst);
}
} else {
assert((isa<Argument>(def) || isa<GlobalVariable>(def) ||
@ -1629,8 +1628,8 @@ static void relocationViaAlloca(
}
#ifndef NDEBUG
for (auto I = F.getEntryBlock().begin(), E = F.getEntryBlock().end();
I != E; I++)
for (auto I = F.getEntryBlock().begin(), E = F.getEntryBlock().end(); I != E;
I++)
if (isa<AllocaInst>(*I))
InitialAllocaNum--;
assert(InitialAllocaNum == 0 && "We must not introduce any extra allocas");
@ -1733,7 +1732,7 @@ static void addBasesAsLiveValues(StatepointLiveSetTy &liveset,
/// slightly non-trivial since it requires a format change. Given how rare
/// such cases are (for the moment?) scalarizing is an acceptable comprimise.
static void splitVectorValues(Instruction *StatepointInst,
StatepointLiveSetTy& LiveSet, DominatorTree &DT) {
StatepointLiveSetTy &LiveSet, DominatorTree &DT) {
SmallVector<Value *, 16> ToSplit;
for (Value *V : LiveSet)
if (isa<VectorType>(V->getType()))
@ -1744,19 +1743,19 @@ static void splitVectorValues(Instruction *StatepointInst,
Function &F = *(StatepointInst->getParent()->getParent());
DenseMap<Value*, AllocaInst*> AllocaMap;
DenseMap<Value *, AllocaInst *> AllocaMap;
// First is normal return, second is exceptional return (invoke only)
DenseMap<Value*, std::pair<Value*,Value*>> Replacements;
DenseMap<Value *, std::pair<Value *, Value *>> Replacements;
for (Value *V : ToSplit) {
LiveSet.erase(V);
AllocaInst *Alloca = new AllocaInst(V->getType(), "",
F.getEntryBlock().getFirstNonPHI());
AllocaInst *Alloca =
new AllocaInst(V->getType(), "", F.getEntryBlock().getFirstNonPHI());
AllocaMap[V] = Alloca;
VectorType *VT = cast<VectorType>(V->getType());
IRBuilder<> Builder(StatepointInst);
SmallVector<Value*, 16> Elements;
SmallVector<Value *, 16> Elements;
for (unsigned i = 0; i < VT->getNumElements(); i++)
Elements.push_back(Builder.CreateExtractElement(V, Builder.getInt32(i)));
LiveSet.insert(Elements.begin(), Elements.end());
@ -1780,7 +1779,7 @@ static void splitVectorValues(Instruction *StatepointInst,
} else {
InvokeInst *Invoke = cast<InvokeInst>(StatepointInst);
// We've already normalized - check that we don't have shared destination
// blocks
// blocks
BasicBlock *NormalDest = Invoke->getNormalDest();
assert(!isa<PHINode>(NormalDest->begin()));
BasicBlock *UnwindDest = Invoke->getUnwindDest();
@ -1796,7 +1795,7 @@ static void splitVectorValues(Instruction *StatepointInst,
AllocaInst *Alloca = AllocaMap[V];
// Capture all users before we start mutating use lists
SmallVector<Instruction*, 16> Users;
SmallVector<Instruction *, 16> Users;
for (User *U : V->users())
Users.push_back(cast<Instruction>(U));
@ -1804,8 +1803,8 @@ static void splitVectorValues(Instruction *StatepointInst,
if (auto Phi = dyn_cast<PHINode>(I)) {
for (unsigned i = 0; i < Phi->getNumIncomingValues(); i++)
if (V == Phi->getIncomingValue(i)) {
LoadInst *Load = new LoadInst(Alloca, "",
Phi->getIncomingBlock(i)->getTerminator());
LoadInst *Load = new LoadInst(
Alloca, "", Phi->getIncomingBlock(i)->getTerminator());
Phi->setIncomingValue(i, Load);
}
} else {
@ -1820,7 +1819,7 @@ static void splitVectorValues(Instruction *StatepointInst,
Store->insertAfter(I);
else
Store->insertAfter(Alloca);
// Normal return for invoke, or call return
Instruction *Replacement = cast<Instruction>(Replacements[V].first);
(new StoreInst(Replacement, Alloca))->insertAfter(Replacement);
@ -1831,7 +1830,7 @@ static void splitVectorValues(Instruction *StatepointInst,
}
// apply mem2reg to promote alloca to SSA
SmallVector<AllocaInst*, 16> Allocas;
SmallVector<AllocaInst *, 16> Allocas;
for (Value *V : ToSplit)
Allocas.push_back(AllocaMap[V]);
PromoteMemToReg(Allocas, DT);
@ -2056,7 +2055,7 @@ bool RewriteStatepointsForGC::runOnFunction(Function &F) {
return false;
DominatorTree &DT = getAnalysis<DominatorTreeWrapperPass>().getDomTree();
// Gather all the statepoints which need rewritten. Be careful to only
// consider those in reachable code since we need to ask dominance queries
// when rewriting. We'll delete the unreachable ones in a moment.
@ -2073,7 +2072,7 @@ bool RewriteStatepointsForGC::runOnFunction(Function &F) {
}
bool MadeChange = false;
// Delete any unreachable statepoints so that we don't have unrewritten
// statepoints surviving this pass. This makes testing easier and the
// resulting IR less confusing to human readers. Rather than be fancy, we