[Bug tree-optimization/19098] tree-ssa-dom.c has an "if" statement whose condition is probably wrong

[law at redhat dot com]

------- Additional Comments From law at redhat dot com  2004-12-21 07:34 -------
Subject: Re:  New: tree-ssa-dom.c has an "if"
	statement whose condition is probably wrong

On Tue, 2004-12-21 at 05:59 +0000, kazu at cs dot umass dot edu wrote:
> tree-ssa-dom.c has the following
> 
>       if (!e->flags & EDGE_DFS_BACK)
> 
> which is always 0 because !e->flags is always 0 or 1, and
> EDGE_DFS_BACK is 32.
That should be

!(e->flags & EDGE_DFS_BACK)


FWIW, this bug shouldn't affect correctness in any way -- it's merely
avoiding a pessimization.

jef




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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19098