[llvm-commits] [llvm] r37851 - /llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp

[Duncan Sands]

> Looking at it a little more, I think the instcombine folds are actually
> wrong here. For example, it does X + undef -> undef, but that's wrong if
> X is a NaN.

Right, that's why I suggested X + undef -> X.

Ciao,

Duncan.