A Clang regression related to switch statements and inlining

[throw16180339]

This was posted a couple days ago as https://news.ycombinator.com/item?id=43088797.

[nicula]

Oh wow didn't know about this. Somebody else posted it for me. Sorry for the dup:)

[pcwalton]

I'm actually quite impressed that LLVM is able to convert that dependent load of an array into a switch statement.