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Revise tree pattern used to match inline finalizable test #5009

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@hzongaro hzongaro commented Mar 6, 2019

The pattern used to match an inline finalizable test might be incorrect in 64-bit mode as tree simplification might result in 32-bit operations being used. This change accounts for that possibility by checking whether an l2i was applied to the result of the load of isClassAndDepthFlags, and checks for 32-bit operations accordingly.

Fixes: Issue #4885

Deliver #4891 to the 0.13 branch

Signed-off-by: Henry Zongaro zongaro@ca.ibm.com

The pattern used to match an inline finalizable test might be incorrect
in 64-bit mode as tree simplification might result in 32-bit operations
being used.  This change accounts for that possibility by checking
whether an l2i was applied to the result of the load of
isClassAndDepthFlags, and checks for 32-bit operations accordingly.

Fixes:  Issue eclipse-openj9#4885

Signed-off-by:  Henry Zongaro <zongaro@ca.ibm.com>
@pshipton pshipton merged commit f5f3812 into eclipse-openj9:v0.13.0-release Mar 6, 2019
@hzongaro hzongaro deleted the ea-isfinalizable-test branch March 6, 2019 20:25
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