[jdk21u-dev] RFR: 8318049: C2: assert(!failure) failed: Missed optimization opportunity in PhaseIterGVN

[Yude Lin]

On Fri, 7 Mar 2025 20:11:46 GMT, Goetz Lindenmaier <goetz at openjdk.org> wrote:

> Hi @linade Please have a look at https://wiki.openjdk.org/display/JDKUpdates/How+to+contribute+or+backport+a+fix This is a change to a delicate component. Please elaborate why you think the risk is low. Give a reason and tell what testing you did. Thanks.

Hi GoeLin,
The patch is merely notifying that there is possibility for optimization for two types of nodes in certain cases. Whether anything would be done to them is up to the existing code. Therefore I think the risk is low. I manually ran tier1_compiler and tier2_compiler. No regression found. Thank you.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/1454#issuecomment-2710073827