//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group. It is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#include "llvm/GlobalValue.h"
#include "llvm/Type.h"
#include "llvm/ValueSymbolTable.h"
-#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/SmallString.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/raw_ostream.h"
using namespace llvm;
// Class destructor
ValueSymbolTable::~ValueSymbolTable() {
#ifndef NDEBUG // Only do this in -g mode...
for (iterator VI = vmap.begin(), VE = vmap.end(); VI != VE; ++VI)
- cerr << "Value still in symbol table! Type = '"
- << VI->getValue()->getType()->getDescription() << "' Name = '"
- << VI->getKeyData() << "'\n";
+ dbgs() << "Value still in symbol table! Type = '"
+ << *VI->getValue()->getType() << "' Name = '"
+ << VI->getKeyData() << "'\n";
assert(vmap.empty() && "Values remain in symbol table!");
#endif
}
-// getUniqueName - Given a base name, return a string that is either equal to
-// it (or derived from it) that does not already occur in the symbol table for
-// the specified type.
-//
-std::string ValueSymbolTable::getUniqueName(const std::string &BaseName) const {
- std::string TryName = BaseName;
-
- // See if the name exists
- while (vmap.find(&TryName[0], &TryName[TryName.size()]) != vmap.end())
- // Loop until we find a free name in the symbol table.
- TryName = BaseName + utostr(++LastUnique);
- return TryName;
-}
-
-
-// lookup a value - Returns null on failure...
-//
-Value *ValueSymbolTable::lookup(const std::string &Name) const {
- const_iterator VI = vmap.find(&Name[0], &Name[Name.size()]);
- if (VI != vmap.end()) // We found the symbol
- return VI->getValue();
- return 0;
-}
-
// Insert a value into the symbol table with the specified name...
//
void ValueSymbolTable::reinsertValue(Value* V) {
// Try inserting the name, assuming it won't conflict.
if (vmap.insert(V->Name)) {
- //DOUT << " Inserted value: " << V->Name << ": " << *V << "\n";
+ //DEBUG(dbgs() << " Inserted value: " << V->Name << ": " << *V << "\n");
return;
}
- // FIXME: this could be much more efficient.
-
// Otherwise, there is a naming conflict. Rename this value.
- std::string UniqueName = V->getName();
-
+ SmallString<256> UniqueName(V->getName().begin(), V->getName().end());
+
+ // The name is too already used, just free it so we can allocate a new name.
V->Name->Destroy();
unsigned BaseSize = UniqueName.size();
while (1) {
- // Trim any suffix off.
+ // Trim any suffix off and append the next number.
UniqueName.resize(BaseSize);
- UniqueName += utostr(++LastUnique);
+ raw_svector_ostream(UniqueName) << ++LastUnique;
+
// Try insert the vmap entry with this suffix.
- ValueName &NewName = vmap.GetOrCreateValue(&UniqueName[0],
- &UniqueName[UniqueName.size()]);
+ ValueName &NewName = vmap.GetOrCreateValue(UniqueName);
if (NewName.getValue() == 0) {
// Newly inserted name. Success!
NewName.setValue(V);
V->Name = &NewName;
- //DEBUG(DOUT << " Inserted value: " << UniqueName << ": " << *V << "\n");
+ //DEBUG(dbgs() << " Inserted value: " << UniqueName << ": " << *V << "\n");
return;
}
}
}
void ValueSymbolTable::removeValueName(ValueName *V) {
- //DEBUG(DOUT << " Removing Value: " << V->getKeyData() << "\n");
- // Remove the value from the plane.
+ //DEBUG(dbgs() << " Removing Value: " << V->getKeyData() << "\n");
+ // Remove the value from the symbol table.
vmap.remove(V);
}
/// createValueName - This method attempts to create a value name and insert
/// it into the symbol table with the specified name. If it conflicts, it
/// auto-renames the name and returns that instead.
-ValueName *ValueSymbolTable::createValueName(const char *NameStart,
- unsigned NameLen, Value *V) {
- ValueName &Entry = vmap.GetOrCreateValue(NameStart, NameStart+NameLen);
+ValueName *ValueSymbolTable::createValueName(StringRef Name, Value *V) {
+ // In the common case, the name is not already in the symbol table.
+ ValueName &Entry = vmap.GetOrCreateValue(Name);
if (Entry.getValue() == 0) {
Entry.setValue(V);
- //DEBUG(DOUT << " Inserted value: " << Entry.getKeyData() << ": "
+ //DEBUG(dbgs() << " Inserted value: " << Entry.getKeyData() << ": "
// << *V << "\n");
return &Entry;
}
- // FIXME: this could be much more efficient.
-
// Otherwise, there is a naming conflict. Rename this value.
- std::string UniqueName(NameStart, NameStart+NameLen);
+ SmallString<256> UniqueName(Name.begin(), Name.end());
+
while (1) {
- // Trim any suffix off.
- UniqueName.resize(NameLen);
- UniqueName += utostr(++LastUnique);
+ // Trim any suffix off and append the next number.
+ UniqueName.resize(Name.size());
+ raw_svector_ostream(UniqueName) << ++LastUnique;
+
// Try insert the vmap entry with this suffix.
- ValueName &NewName = vmap.GetOrCreateValue(&UniqueName[0],
- &UniqueName[UniqueName.size()]);
+ ValueName &NewName = vmap.GetOrCreateValue(UniqueName);
if (NewName.getValue() == 0) {
// Newly inserted name. Success!
NewName.setValue(V);
- //DEBUG(DOUT << " Inserted value: " << UniqueName << ": " << *V << "\n");
+ //DEBUG(dbgs() << " Inserted value: " << UniqueName << ": " << *V << "\n");
return &NewName;
}
}
// dump - print out the symbol table
//
void ValueSymbolTable::dump() const {
- //DOUT << "ValueSymbolTable:\n";
+ //DEBUG(dbgs() << "ValueSymbolTable:\n");
for (const_iterator I = begin(), E = end(); I != E; ++I) {
- //DOUT << " '" << I->getKeyData() << "' = ";
+ //DEBUG(dbgs() << " '" << I->getKeyData() << "' = ");
I->getValue()->dump();
- //DOUT << "\n";
+ //DEBUG(dbgs() << "\n");
}
}