1.1 --- a/src/share/vm/opto/loopTransform.cpp Thu Mar 31 02:31:57 2011 -0700
1.2 +++ b/src/share/vm/opto/loopTransform.cpp Thu Mar 31 13:22:34 2011 -0700
1.3 @@ -432,6 +432,12 @@
1.4 return false;
1.5 }
1.6
1.7 + // Currently we don't have policy to optimize one iteration loops.
1.8 + // Maximally unrolling transformation is used for that:
1.9 + // it is peeled and the original loop become non reachable (dead).
1.10 + if (trip_count == 1)
1.11 + return true;
1.12 +
1.13 // Do not unroll a loop with String intrinsics code.
1.14 // String intrinsics are large and have loops.
1.15 for (uint k = 0; k < _body.size(); k++) {
