Differential D69303 Diff 226038 llvm/lib/Transforms/IPO/GlobalOpt.cpp

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llvm/lib/Transforms/IPO/GlobalOpt.cpp

Show First 20 Lines • Show All 885 Lines • ▼ Show 20 Lines	new GlobalVariable(Type::getInt1Ty(GV->getContext()), false,
ConstantInt::getFalse(GV->getContext()),		ConstantInt::getFalse(GV->getContext()),
GV->getName()+".init", GV->getThreadLocalMode());		GV->getName()+".init", GV->getThreadLocalMode());
bool InitBoolUsed = false;		bool InitBoolUsed = false;

// Loop over all uses of GV, processing them in turn.		// Loop over all uses of GV, processing them in turn.
while (!GV->use_empty()) {		while (!GV->use_empty()) {
if (StoreInst *SI = dyn_cast<StoreInst>(GV->user_back())) {		if (StoreInst *SI = dyn_cast<StoreInst>(GV->user_back())) {
// The global is initialized when the store to it occurs.		// The global is initialized when the store to it occurs.
new StoreInst(ConstantInt::getTrue(GV->getContext()), InitBool, false, 0,		new StoreInst(ConstantInt::getTrue(GV->getContext()), InitBool, false,
SI->getOrdering(), SI->getSyncScopeID(), SI);		None, SI->getOrdering(), SI->getSyncScopeID(), SI);
SI->eraseFromParent();		SI->eraseFromParent();
continue;		continue;
}		}

LoadInst *LI = cast<LoadInst>(GV->user_back());		LoadInst *LI = cast<LoadInst>(GV->user_back());
while (!LI->use_empty()) {		while (!LI->use_empty()) {
Use &LoadUse = *LI->use_begin();		Use &LoadUse = *LI->use_begin();
ICmpInst *ICI = dyn_cast<ICmpInst>(LoadUse.getUser());		ICmpInst *ICI = dyn_cast<ICmpInst>(LoadUse.getUser());
▲ Show 20 Lines • Show All 817 Lines • ▼ Show 20 Lines	if (StoreInst *SI = dyn_cast<StoreInst>(UI)) {
} else {		} else {
assert((isa<CastInst>(StoredVal) \|\| isa<SelectInst>(StoredVal)) &&		assert((isa<CastInst>(StoredVal) \|\| isa<SelectInst>(StoredVal)) &&
"This is not a form that we understand!");		"This is not a form that we understand!");
StoreVal = StoredVal->getOperand(0);		StoreVal = StoredVal->getOperand(0);
assert(isa<LoadInst>(StoreVal) && "Not a load of NewGV!");		assert(isa<LoadInst>(StoreVal) && "Not a load of NewGV!");
}		}
}		}
StoreInst *NSI =		StoreInst *NSI =
new StoreInst(StoreVal, NewGV, false, 0, SI->getOrdering(),		new StoreInst(StoreVal, NewGV, false, None, SI->getOrdering(),
SI->getSyncScopeID(), SI);		SI->getSyncScopeID(), SI);
NSI->setDebugLoc(SI->getDebugLoc());		NSI->setDebugLoc(SI->getDebugLoc());
} else {		} else {
// Change the load into a load of bool then a select.		// Change the load into a load of bool then a select.
LoadInst *LI = cast<LoadInst>(UI);		LoadInst *LI = cast<LoadInst>(UI);
LoadInst *NLI = new LoadInst(NewGV->getValueType(), NewGV,		LoadInst *NLI = new LoadInst(NewGV->getValueType(), NewGV,
LI->getName() + ".b", false, None,		LI->getName() + ".b", false, None,
LI->getOrdering(), LI->getSyncScopeID(), LI);		LI->getOrdering(), LI->getSyncScopeID(), LI);
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