[llvm-dev] How LLVM guarantee the qualify of the product from the limited test suit?

[Robinson, Paul via llvm-dev]

> I was merely stating the quality of compiler test suites, and how
> valuable it would be to use the GCC tests in LLVM (or vice-versa). I
> agree with Paul that the LLVM tests are little more than smoke screen,
> and from what I've seen, the GCC tests are just a bigger smoke screen.

Possible language issue here....

A "smoke screen" is something to obscure/conceal whatever is behind it,
by making it hard to see through the smoke.
A "smoke test" is the initial power-on to see if your new hardware 
instantly starts billowing smoke (catches on fire).

I view the Clang/LLVM regression tests as a "smoke test" for Clang/LLVM;
the initial set of tests that tells you whether it is worth proceeding
to more thorough/expensive testing.  Not a smoke screen!
Thanks,
--paulr