test/run-pass/if-ret.rs passes only with optimization turned on

[marijnh]

Without -O, you get

Basic Block in function '_ZN3fooE' does not have terminator!
label %5
LLVM ERROR: Broken module, no Basic Block terminator!

[brson]

This is a regression. Was not the case yesterday.

[brson]

bisected: 13f8b3f

[msullivan]

So should this be closed?

[catamorphism]

Is there a way that "make check" could run tests both with and without optimization?

[brson]

I don't think it would be simple. I'd like an unoptimized tinderbox, though.

[catamorphism]

I un-reverted, but with a change that allows it to pass with optimization either off or on.