[PATCH] D46584: [Evaluator] Improve evaluation of call instruction

[George Rimar via Phabricator via llvm-commits]

grimar added inline comments.


================
Comment at: lib/Transforms/Utils/Evaluator.cpp:243
+  return NewRV ? NewRV : RV;
+}
 /// Evaluate all instructions in block BB, returning true if successful, false
----------------
Seems it better looks like:


```
Constant *Evaluator::substCallExprArgument(Value *CallExpr, Constant *RV) {
  ConstantExpr *CE = dyn_cast<ConstantExpr>(CallExpr);
  if (!CE || CE->getOpcode() != Instruction::BitCast)
    return RV;

  if (auto *FT = dyn_cast<FunctionType>(CE->getType()->getPointerElementType()))
    return ConstantFoldLoadThroughBitcast(RV, FT->getReturnType(), DL);
  return RV;
}
```



https://reviews.llvm.org/D46584