Implement clang support for indirect branch and address of label
using the new LLVM support for this.  This is temporarily hiding
behind horrible and ugly #ifdefs until the time when the optimizer
is stable (hopefully a week or so).  Until then, lets make it "opt in" :)

llvm-svn: 85446
6 files changed
tree: d89f05cd759ed3e4900f018b4a0e546745eb1f43
  1. clang/
  2. compiler-rt/
  3. llvm/