// If the values coming into the block are not the same, we need a PHI.
// Create the new PHI node, insert it into NewBB at the end of the block
PHINode *NewPHI =
- PHINode::Create(PN->getType(), PN->getName()+".ph", BI);
- NewPHI->reserveOperandSpace(NumPreds);
+ PHINode::Create(PN->getType(), NumPreds, PN->getName()+".ph", BI);
if (AA) AA->copyValue(PN, NewPHI);
// Move all of the PHI values for 'Preds' to the new PHI.
UncondBranch->eraseFromParent();
return cast<ReturnInst>(NewRet);
}
+
+/// GetFirstDebugLocInBasicBlock - Return first valid DebugLoc entry in a
+/// given basic block.
+DebugLoc llvm::GetFirstDebugLocInBasicBlock(const BasicBlock *BB) {
+ if (const Instruction *I = BB->getFirstNonPHI())
+ return I->getDebugLoc();
+ // Scanning entire block may be too expensive, if the first instruction
+ // does not have valid location info.
+ return DebugLoc();
+}