[Bug target/12654] [3.3/3.4 regression] Incorrect comparison code generated for Alpha

[falk dot hueffner at student dot uni-tuebingen dot de]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12654



------- Additional Comments From falk dot hueffner at student dot uni-tuebingen dot de  2003-10-27 22:59 -------
Subject: Re:  [3.3/3.4 regression] Incorrect comparison code generated for Alpha

"tg at swox dot com" <gcc-bugzilla@gcc.gnu.org> writes:

> This is not good.  The compiler will never do unsigned comparisons
> against zero.

Not sure what you mean. If you mean that we never see (gtu x
(const_int 0)), then that's wrong.

> Why didn't you just use the simple and correct patch I supplied?

Because it yields worse code, for example for

int i_lt_0(int i) { if (i < 0) abort(); }