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minor cleanups

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34904 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2007-03-04 04:50:21 +00:00
parent d7f3de655b
commit 57939df2eb
1 changed files with 8 additions and 7 deletions
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15
lib/Transforms/Scalar/SCCP.cpp
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@ -239,6 +239,9 @@ public:
return TrackedGlobals;
}
inline void markOverdefined(Value *V) {
markOverdefined(ValueState[V], V);
}
private:
// markConstant - Make a value be marked as "constant". If the value
@ -277,9 +280,6 @@ private:
OverdefinedInstWorkList.push_back(V);
}
}
inline void markOverdefined(Value *V) {
markOverdefined(ValueState[V], V);
}
inline void mergeInValue(LatticeVal &IV, Value *V, LatticeVal &MergeWithV) {
if (IV.isOverdefined() || MergeWithV.isUndefined())
@ -1365,9 +1365,8 @@ bool SCCP::runOnFunction(Function &F) {
Solver.MarkBlockExecutable(F.begin());
// Mark all arguments to the function as being overdefined.
std::map<Value*, LatticeVal> &Values = Solver.getValueMapping();
for (Function::arg_iterator AI = F.arg_begin(), E = F.arg_end(); AI != E; ++AI)
Values[AI].markOverdefined();
Solver.markOverdefined(AI);
// Solve for constants.
bool ResolvedUndefs = true;
@ -1385,6 +1384,8 @@ bool SCCP::runOnFunction(Function &F) {
//
SmallSet<BasicBlock*, 16> &ExecutableBBs = Solver.getExecutableBlocks();
SmallVector<Instruction*, 32> Insts;
std::map<Value*, LatticeVal> &Values = Solver.getValueMapping();
for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
if (!ExecutableBBs.count(BB)) {
DOUT << " BasicBlock Dead:" << *BB;
@ -1486,14 +1487,13 @@ bool IPSCCP::runOnModule(Module &M) {
// Loop over all functions, marking arguments to those with their addresses
// taken or that are external as overdefined.
//
std::map<Value*, LatticeVal> &Values = Solver.getValueMapping();
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F)
if (!F->hasInternalLinkage() || AddressIsTaken(F)) {
if (!F->isDeclaration())
Solver.MarkBlockExecutable(F->begin());
for (Function::arg_iterator AI = F->arg_begin(), E = F->arg_end();
AI != E; ++AI)
Values[AI].markOverdefined();
Solver.markOverdefined(AI);
} else {
Solver.AddTrackedFunction(F);
}
@ -1525,6 +1525,7 @@ bool IPSCCP::runOnModule(Module &M) {
SmallSet<BasicBlock*, 16> &ExecutableBBs = Solver.getExecutableBlocks();
SmallVector<Instruction*, 32> Insts;
SmallVector<BasicBlock*, 32> BlocksToErase;
std::map<Value*, LatticeVal> &Values = Solver.getValueMapping();
for (Module::iterator F = M.begin(), E = M.end(); F != E; ++F) {
for (Function::arg_iterator AI = F->arg_begin(), E = F->arg_end();