mozilla/rust — pull request #6665 by catamorphism (2013-05-21 20:17:36+00:00)
Title: rustc: Don't generate code for unreachable expressions

r? @nikomatsakis The way we deal with unreachable expressions in trans is pretty ad hoc,
but this at least doesn't make it worse, and eliminates the LLVM
assertion failure reported in #5741.