Mercurial > hg > truffle
diff src/share/vm/opto/loopTransform.cpp @ 3456:782e2bb60c41
7052494: Eclipse test fails on JDK 7 b142
Summary: Keep 'ne' test in Counted loop when we can't guarantee during compilation that init < limit.
Reviewed-by: never
author | kvn |
---|---|
date | Mon, 20 Jun 2011 16:45:35 -0700 |
parents | 789d04408ca3 |
children | e3cbc9ddd434 |
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--- a/src/share/vm/opto/loopTransform.cpp Tue Jun 21 02:43:10 2011 -0700 +++ b/src/share/vm/opto/loopTransform.cpp Mon Jun 20 16:45:35 2011 -0700 @@ -83,7 +83,7 @@ #ifdef ASSERT BoolTest::mask bt = cl->loopexit()->test_trip(); assert(bt == BoolTest::lt || bt == BoolTest::gt || - (bt == BoolTest::ne && !LoopLimitCheck), "canonical test is expected"); + bt == BoolTest::ne, "canonical test is expected"); #endif Node* init_n = cl->init_trip(); @@ -1070,9 +1070,11 @@ // direction: // positive stride use < // negative stride use > + // + // not-equal test is kept for post loop to handle case + // when init > limit when stride > 0 (and reverse). if (pre_end->in(CountedLoopEndNode::TestValue)->as_Bool()->_test._test == BoolTest::ne) { - assert(!LoopLimitCheck, "only canonical tests (lt or gt) are expected"); BoolTest::mask new_test = (main_end->stride_con() > 0) ? BoolTest::lt : BoolTest::gt; // Modify pre loop end condition