review (S) for 6930043: C2: SIGSEGV in javasoft.sqe.tests.lang.arr017.arr01702.arr01702.loop_forw(II)I

[Tom Rodriguez]

http://cr.openjdk.java.net/~never/6930043

6930043: C2: SIGSEGV in javasoft.sqe.tests.lang.arr017.arr01702.arr01702.loop_forw(II)I
Reviewed-by:

The new loop predication code is missing logic to test that the
initial value of the index is in range.  In many cases will be
eliminated statically.  Tested with failing test.  Also tested that
this new test doesn't affect the performance improvement we were
seeing with scimark.

src/share/vm/opto/loopTransform.cpp
test/compiler/6930043/Test6930043.java