| Issue |
91716
|
| Summary |
[DebugInfo][LICM] Missing debug location updates
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Apochens
|
LICM[-L932](https://github.com/llvm/llvm-project/blob/6aac30fa43f094ac25269bda163dc89a88cb8da7/llvm/lib/Transforms/Scalar/LICM.cpp#L932), [-L937](https://github.com/llvm/llvm-project/blob/6aac30fa43f094ac25269bda163dc89a88cb8da7/llvm/lib/Transforms/Scalar/LICM.cpp#L937): Newly created FDiv `ReciprocalDivisor` is inserted before the instruction `I` replaced by new FMul `Product`.
```cpp
-> auto ReciprocalDivisor = BinaryOperator::CreateFDiv(One, Divisor);
| ReciprocalDivisor->setFastMathFlags(I.getFastMathFlags());
| SafetyInfo->insertInstructionTo(ReciprocalDivisor, I.getParent());
|_ ReciprocalDivisor->insertBefore(&I);
-> auto Product =
| BinaryOperator::CreateFMul(I.getOperand(0), ReciprocalDivisor);
| Product->setFastMathFlags(I.getFastMathFlags());
| SafetyInfo->insertInstructionTo(Product, I.getParent());
| Product->insertAfter(&I);
| I.replaceAllUsesWith(Product);
|_ eraseInstruction(I, *SafetyInfo, MSSAU);
```
I will give the patch later.
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