Re: [PATCH] Fix ICE in rtl-optimization/PR61220, PR61225

[Jeff Law]

On 05/20/14 20:12, Zhenqiang Chen wrote:
In the code, there are 4 combinations of EDGE_COUNT: <1, 1>, <1, 2>,
<2, 1> and <2, 2>.  <2, 1> is "illegal". <2, 2> is legal, but need
split_edge. <1, *> can bypass the second check. EDGE_CRITICAL_P can
only distinguish <2, 2> from others.
So I think two explicit checks is more efficient than EDGE_CRITICAL_P.
OK.  It was more a question of clarity than efficiency.  Your patch is 
fine as-is.

jeff