[LLVMdev] warning from -instcombine

[Jay Foad]

Hi,

I noticed this code in lib/Transforms/Scalar/InstructionCombining.cpp:

      cerr << "WARNING: While resolving call to function '"
           << Callee->getName() << "' arguments were dropped!\n";

If you're using LLVM as a static compiler, this warning is a bit
incongruous, because it's not formatted in the same way as warnings
from the front end, and it isn't suppressed by -w.

If you're using LLVM as a JIT, it seems completely wrong for any
optimisation pass to use cerr like this.

So should it be removed, or downgraded to DOUT, or something?

There are a few other instances of cerr << "WARNING: ..." in other LLVM passes.

Thanks,
Jay.