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-rw-r--r--lib/VMCore/ValueSymbolTable.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/VMCore/ValueSymbolTable.cpp b/lib/VMCore/ValueSymbolTable.cpp
index 51197b6bf3..6bd5b0c49c 100644
--- a/lib/VMCore/ValueSymbolTable.cpp
+++ b/lib/VMCore/ValueSymbolTable.cpp
@@ -81,7 +81,13 @@ void ValueSymbolTable::insert(Value* V) {
assert(V && "Can't insert null Value into symbol table!");
assert(V->hasName() && "Can't insert nameless Value into symbol table");
- // Check to see if there is a naming conflict. If so, rename this value
+ // Try inserting the name, assuming it won't conflict.
+ if (vmap.insert(make_pair(V->Name, V)).second) {
+ DOUT << " Inserted value: " << V->Name << ": " << *V << "\n";
+ return;
+ }
+
+ // Otherwise, there is a naming conflict. Rename this value.
std::string UniqueName = getUniqueName(V->getName());
DEBUG(DOUT << " Inserting value: " << UniqueName << ": " << *V << "\n");