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Fix bug exposed by this testcase:

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declare int "call_operand"      (%rtx_def*, int)        ;; Prototype for: call_operand
declare int "restore_operand"   (%rtx_def*, int)        ;; Prototype for: restore_operand

%rtx_def = type opaque
%rtx_def = type int
implementation

llvm-svn: 934
This commit is contained in:
Chris Lattner 2001-10-22 04:55:44 +00:00
parent 8acdb272f4
commit 3495dd8b2f
2 changed files with 30 additions and 9 deletions
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6
include/llvm/SymbolTable.h
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@ -62,7 +62,7 @@ public:
// insert - Add named definition to the symbol table...
inline void insert(Value *N) {
assert(N->hasName() && "Value must be named to go into symbol table!");
insertEntry(N->getName(), N);
insertEntry(N->getName(), N->getType(), N);
}
// insert - Insert a constant or type into the symbol table with the specified
@ -72,7 +72,7 @@ public:
inline void insert(const string &Name, Value *V) {
assert((isa<Type>(V) || isa<ConstPoolVal>(V)) &&
"Can only insert types and constants here!");
insertEntry(Name, V);
insertEntry(Name, V->getType(), V);
}
void remove(Value *N);
@ -111,7 +111,7 @@ private:
// insertEntry - Insert a value into the symbol table with the specified
// name...
//
void insertEntry(const string &Name, Value *V);
void insertEntry(const string &Name, const Type *Ty, Value *V);
// This function is called when one of the types in the type plane are refined
virtual void refineAbstractType(const DerivedType *OldTy, const Type *NewTy);

33
lib/VMCore/SymbolTable.cpp
View File

@ -119,9 +119,7 @@ Value *SymbolTable::type_remove(const type_iterator &It) {
// insertEntry - Insert a value into the symbol table with the specified
// name...
//
void SymbolTable::insertEntry(const string &Name, Value *V) {
const Type *VTy = V->getType();
void SymbolTable::insertEntry(const string &Name, const Type *VTy, Value *V) {
// TODO: The typeverifier should catch this when its implemented
assert(lookup(VTy, Name) == 0 &&
"SymbolTable::insertEntry - Name already in symbol table!");
@ -133,9 +131,16 @@ void SymbolTable::insertEntry(const string &Name, Value *V) {
iterator I = find(VTy);
if (I == end()) { // Not in collection yet... insert dummy entry
(*this)[VTy] = VarMap();
I = find(VTy);
// Insert a new empty element. I points to the new elements.
I = super::insert(make_pair(VTy, VarMap())).first;
assert(I != end() && "How did insert fail?");
// Check to see if the type is abstract. If so, it might be refined in the
// future, which would cause the plane of the old type to get merged into
// a new type plane.
//
if (VTy->isAbstract())
cast<DerivedType>(VTy)->addAbstractTypeUser(this);
}
I->second.insert(make_pair(Name, V));
@ -153,7 +158,23 @@ void SymbolTable::refineAbstractType(const DerivedType *OldType,
const Type *NewType) {
if (OldType == NewType) return; // Noop, don't waste time dinking around
iterator TPI = find(Type::TypeTy);
// Search to see if we have any values of the type oldtype. If so, we need to
// move them into the newtype plane...
iterator TPI = find(OldType);
if (TPI != end()) {
VarMap &OldPlane = TPI->second;
while (!OldPlane.empty()) {
pair<const string, Value*> V = *OldPlane.begin();
OldPlane.erase(OldPlane.begin());
insertEntry(V.first, NewType, V.second);
}
// Ok, now we are not referencing the type anymore... take me off your user
// list please!
OldType->removeAbstractTypeUser(this);
}
TPI = find(Type::TypeTy);
assert(TPI != end() &&"Type plane not in symbol table but we contain types!");
// Loop over all of the types in the symbol table, replacing any references to