[PATCH, tree-ssa] Avoid -Wuninitialized warning in try_unroll_loop_completely()

[Chung-Ju Wu]

Hi,

I noticed there is an uninitialized variable warning
when compiling tree-ssa-loop-ivcanon.c file.

Attached patch is a slight modification to avoid the warning
and a plaintext ChangeLog is as below.

Is it OK for trunk?


2013-04-14  Chung-Ju Wu  <jasonwucj@gmail.com>

        * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Avoid
        -Wuninitialized warning.


Best regards,
jasonwucj
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