reimplement multiple return value handling in IPSCCP, making it 
more aggressive an correct.  This survives building llvm in 64-bit
mode with optimizations and the built llvm passes make check.

llvm-svn: 85973
2 files changed
tree: f9258f719c55d369b8d65643e8170d3a11b26757
  1. clang/
  2. compiler-rt/
  3. llvm/