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[Bug c/22072] bizarre code for int*int/2
- From: "falk at debian dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 15 Jun 2005 11:43:53 -0000
- Subject: [Bug c/22072] bizarre code for int*int/2
- References: <20050615060438.22072.felix-gcc@fefe.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From falk at debian dot org 2005-06-15 11:43 -------
(In reply to comment #0)
> Why are the two instructions after the imull emitted? Shouldn't this become
> simply imull and sarl?
No. A signed division by two is not a shift.
The complaint about $2 not propagating seems valid though. Maybe somebody
can try 4.x on it.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22072