Benjamin Kramer cb570f1bc9 TRE: Just erase dead BBs and tweak the iteration loop not to increment the deleted BB iterator.
Leaving empty blocks around just opens up a can of bugs like PR22704. Deleting
them early also slightly simplifies code.

Thanks to Sanjay for the IR test case.

llvm-svn: 230856
2015-02-28 16:47:27 +00:00
..
2014-11-19 13:32:51 +00:00