zext(undef) = 0 and sext(undef) = 0, not undef.
This hopefully fixes a miscompilation of TargetData.cpp when self hosting.

llvm-svn: 40125
1 file changed
tree: 38d820d1e107ae67b6a7542fb82a0026c7fd5450
  1. clang/
  2. llvm/
  3. stacker/