Dan Gohman 922244c634 Implement proper ObjC ARC objc_retainBlock "escape" analysis, so that
the optimizer doesn't eliminate objc_retainBlock calls which are needed
for their side effect of copying blocks onto the heap.
This implements rdar://10361249.

llvm-svn: 148076
2012-01-13 00:39:07 +00:00
..
2012-01-12 19:54:02 +00:00