review(S) 7004547: regular loop unroll should not unroll more than max unrolling
vladimir.kozlov at oracle.com
Mon Apr 4 15:01:44 PDT 2011
Fixed 7004547: regular loop unroll should not unroll more than max unrolling
Max unroll policy when calculating new loop body size does not take into account
that after unroll conjoined loop's head and tail will fold. As result there are
cases when max unroll was not done but regular unroll will do full unrolling for
Use long arithmetic to calculate exact trip count.
Add missing nodes limit check for loop split (pre-main-post).
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