diff options
Diffstat (limited to 'lib/VMCore/Value.cpp')
| -rw-r--r-- | lib/VMCore/Value.cpp | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/lib/VMCore/Value.cpp b/lib/VMCore/Value.cpp index cdde96b..dd06441 100644 --- a/lib/VMCore/Value.cpp +++ b/lib/VMCore/Value.cpp @@ -96,8 +96,8 @@ unsigned Value::getNumUses() const { void Value::setName(const std::string &name) { if (Name == name) return; // Name is already set. + // Get the symbol table to update for this object. SymbolTable *ST = 0; - if (Instruction *I = dyn_cast<Instruction>(this)) { if (BasicBlock *P = I->getParent()) if (Function *PP = P->getParent()) @@ -113,9 +113,19 @@ void Value::setName(const std::string &name) { return; // no name is setable for this. } - if (ST && hasName()) ST->remove(this); - Name = name; - if (ST && hasName()) ST->insert(this); + if (!ST) // No symbol table to update? Just do the change. + Name = name; + else if (hasName()) { + if (!name.empty()) { // Replacing name. + ST->changeName(this, name); + } else { // Transitioning from hasName -> noname. + ST->remove(this); + Name.clear(); + } + } else { // Transitioning from noname -> hasName. + Name = name; + ST->insert(this); + } } // uncheckedReplaceAllUsesWith - This is exactly the same as replaceAllUsesWith, |