http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46619
--- Comment #3 from Eskil Steenberg <eskil at obsession dot se> 2010-11-23 17:55:56 UTC --- (In reply to comment #2) > Do you have a run-time testcase? There is a test you can run in v_prime.c , it should fail to set the high bit and therefor should not ever find a prime. Testing that something is broken by finding that some thing doesn't do some thing is kind of hard, so I would rather recommend looking at just the assembly code and try to figure out why it thinks that the specific line can be removed. (the obvious one to me is that it thinks that uv is signed and therefor can never go as high as 0x80000000). Cheers E
