https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19676
Andrew Pinski changed:
What|Removed |Added
See Also||https://gcc.gnu.org/bugzill
--- Additional Comments From andrewhutchinson at cox dot net 2005-01-28
20:15 ---
Subject: Re: Loop optimizer fails to reverse
simple loop
GCC 3.3.1 did reverse testloop3 but not testloop2() or testloop(4). So
4.0 gets 4/5 right an 3.3.1 3/5 right.
Its complicated by other optimisa
--- Additional Comments From pinskia at gcc dot gnu dot org 2005-01-28
19:54 ---
Confirmed, we should be able to do this on the tree level but don't for
testloop2, testloop3, testloop4.
To answer this question:
* - why is gcc inconsistent in loop reversal bounds
Because sometimes
