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handle function-level forward references, read binops.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36620 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2007-05-01 07:01:57 +00:00
parent 6f7c8ffd9a
commit a7c49aac98
2 changed files with 145 additions and 20 deletions
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19
lib/Bitcode/Reader/BitcodeReader.h
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@@ -51,6 +51,22 @@ public:
virtual void print(std::ostream&) const {}
Constant *getConstantFwdRef(unsigned Idx, const Type *Ty);
Value *getValueFwdRef(unsigned Idx, const Type *Ty);
void AssignValue(Value *V, unsigned Idx) {
if (Idx == size()) {
push_back(V);
} else if (Value *OldV = getOperand(Idx)) {
// If there was a forward reference to this value, replace it.
setOperand(Idx, V);
OldV->replaceAllUsesWith(V);
delete OldV;
} else {
initVal(Idx, V);
}
}
private:
void initVal(unsigned Idx, Value *V) {
assert(Uses[Idx] == 0 && "Cannot init an already init'd Use!");
Uses[Idx].init(V, this);
@@ -113,6 +129,9 @@ public:
bool ParseBitcode();
private:
const Type *getTypeByID(unsigned ID, bool isTypeTable = false);
Value *getFnValueByID(unsigned ID, const Type *Ty) {
return ValueList.getValueFwdRef(ID, Ty);
}
bool ParseModule(const std::string &ModuleID);
bool ParseTypeTable();