The original back-to-back if optimization added by JDK-8143542 relies on using split-if to nicely fold the dominated (and to be removed) if away afterwards in IGVN. However, it does not handle data dependencies correctly which could lead to crashes in rare cases (JDK-8275610). The fix for JDK-8275610 simply disables JDK-8143542 if there are data dependencies involved. This RFE aims to improve the back-to-back if optimization to also work correctly with data dependencies.
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JDK-8275610 C2: Object field load floats above its null check resulting in a segfault
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- Resolved
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JDK-8143542 C2 doesn't eliminate identical checks
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- Resolved
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- Closed
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- Open
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