* Introduce a new SelectionDAG::getIntPtrConstant method
  and switch various codegen pieces and the X86 backend over
  to using it.

* Add some comments to SelectionDAGNodes.h

* Introduce a second argument to FP_ROUND, which indicates
  whether the FP_ROUND changes the value of its input. If
  not it is safe to xform things like fp_extend(fp_round(x)) -> x.

llvm-svn: 46125
13 files changed
tree: ca9bd1f17d76cada208253ddf1f88973e324afb4
  1. clang/
  2. llvm/