Change LiveRange so it keeps a pointer to the VNInfo rather than an index.
Changes related modules so VNInfo's are not copied. This decrease
copy coalescing time by 45% and overall compilation time by 10% on siod.

llvm-svn: 41579
5 files changed
tree: 7f1724f4c9a0eb9c3291b16f99ece4fc28db55f1
  1. clang/
  2. llvm/