// Used for both models.
Function *WriteFn;
Function *AbortFn;
+ Constant *AbortMessageInit;
Value *AbortMessage;
unsigned AbortMessageLength;
// current module.
bool LowerInvoke::doInitialization(Module &M) {
const Type *VoidPtrTy = PointerType::get(Type::SByteTy);
+ AbortMessage = 0;
if (ExpensiveEHSupport) {
// Insert a type for the linked list of jump buffers. Unfortunately, we
// don't know the size of the target's setjmp buffer, so we make a guess.
Constant *Msg =
ConstantArray::get("ERROR: Exception thrown, but not caught!\n");
AbortMessageLength = Msg->getNumOperands()-1; // don't include \0
+ AbortMessageInit = Msg;
GlobalVariable *MsgGV = M.getGlobalVariable("abort.msg", Msg->getType());
if (MsgGV && (!MsgGV->hasInitializer() || MsgGV->getInitializer() != Msg))
MsgGV = 0;
- if (!MsgGV)
- MsgGV = new GlobalVariable(Msg->getType(), true,
- GlobalValue::InternalLinkage,
- Msg, "abort.msg", &M);
- std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::LongTy));
- AbortMessage =
- ConstantExpr::getGetElementPtr(ConstantPointerRef::get(MsgGV), GEPIdx);
+
+ if (MsgGV) {
+ std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::LongTy));
+ AbortMessage =
+ ConstantExpr::getGetElementPtr(ConstantPointerRef::get(MsgGV), GEPIdx);
+ }
} else {
// The abort message for cheap EH support tells the user that EH is not
ConstantArray::get("Exception handler needed, but not enabled. Recompile"
" program with -enable-correct-eh-support.\n");
AbortMessageLength = Msg->getNumOperands()-1; // don't include \0
+ AbortMessageInit = Msg;
GlobalVariable *MsgGV = M.getGlobalVariable("abort.msg", Msg->getType());
if (MsgGV && (!MsgGV->hasInitializer() || MsgGV->getInitializer() != Msg))
MsgGV = 0;
- if (!MsgGV)
- MsgGV = new GlobalVariable(Msg->getType(), true,
- GlobalValue::InternalLinkage,
- Msg, "abort.msg", &M);
- std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::LongTy));
- AbortMessage =
- ConstantExpr::getGetElementPtr(ConstantPointerRef::get(MsgGV), GEPIdx);
+ if (MsgGV) {
+ std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::LongTy));
+ AbortMessage =
+ ConstantExpr::getGetElementPtr(ConstantPointerRef::get(MsgGV), GEPIdx);
+ }
}
// We need the 'write' and 'abort' functions for both models.
void LowerInvoke::writeAbortMessage(Instruction *IB) {
if (WriteFn) {
+ if (!AbortMessage) {
+ GlobalVariable *MsgGV = new GlobalVariable(AbortMessageInit->getType(),
+ true,
+ GlobalValue::InternalLinkage,
+ AbortMessageInit, "abort.msg",
+ WriteFn->getParent());
+ std::vector<Constant*> GEPIdx(2, Constant::getNullValue(Type::LongTy));
+ AbortMessage =
+ ConstantExpr::getGetElementPtr(ConstantPointerRef::get(MsgGV), GEPIdx);
+ }
+
// These are the arguments we WANT...
std::vector<Value*> Args;
Args.push_back(ConstantInt::get(Type::IntTy, 2));