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[SCCP] Pass a Value * instead of templating this function. NFC.

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Thanks to Eli for the suggestion!

llvm-svn: 275366
This commit is contained in:
Davide Italiano 2016-07-14 03:02:34 +00:00
parent b9db25ac49
commit 7dbaefb75a
1 changed files with 8 additions and 9 deletions
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17
lib/Transforms/Scalar/SCCP.cpp
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@ -1510,16 +1510,15 @@ bool SCCPSolver::ResolvedUndefsIn(Function &F) {
return false;
}
template <typename ArgOrInst>
static bool tryToReplaceWithConstant(SCCPSolver Solver, ArgOrInst *AI) {
static bool tryToReplaceWithConstant(SCCPSolver Solver, Value *V) {
Constant *Const = nullptr;
if (AI->getType()->isStructTy()) {
std::vector<LatticeVal> IVs = Solver.getStructLatticeValueFor(AI);
if (V->getType()->isStructTy()) {
std::vector<LatticeVal> IVs = Solver.getStructLatticeValueFor(V);
if (std::any_of(IVs.begin(), IVs.end(),
[](LatticeVal &LV) { return LV.isOverdefined(); }))
return false;
std::vector<Constant *> ConstVals;
StructType *ST = dyn_cast<StructType>(AI->getType());
StructType *ST = dyn_cast<StructType>(V->getType());
for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
LatticeVal V = IVs[i];
ConstVals.push_back(V.isConstant()
@ -1528,16 +1527,16 @@ static bool tryToReplaceWithConstant(SCCPSolver Solver, ArgOrInst *AI) {
}
Const = ConstantStruct::get(ST, ConstVals);
} else {
LatticeVal IV = Solver.getLatticeValueFor(AI);
LatticeVal IV = Solver.getLatticeValueFor(V);
if (IV.isOverdefined())
return false;
Const = IV.isConstant() ? IV.getConstant() : UndefValue::get(AI->getType());
Const = IV.isConstant() ? IV.getConstant() : UndefValue::get(V->getType());
}
assert(Const && "Constant is nullptr here!");
DEBUG(dbgs() << " Constant: " << *Const << " = " << *AI << '\n');
DEBUG(dbgs() << " Constant: " << *Const << " = " << *V << '\n');
// Replaces all of the uses of a variable with uses of the constant.
AI->replaceAllUsesWith(Const);
V->replaceAllUsesWith(Const);
return true;
}