Yi Yang

8288204: GVN Crash: assert() failed: correct memory chain

10

Hi can I have a review for this fix? LoadBNode::Ideal crashes after performing GVN right after EA. The bad IR is as follows:  The memory input of Load#971 is...

8327864: Support segmented heap dump for HotSpotDiagnosticMXBean

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We've received feedback from users of cloud APM platform wanting the new version of the JDK to allow the HotSpotDiagnosticMXBean.dumpHeap underpinnings to reduce STW time using sgemented heapdump. Supporting segmented...

cmd/compile: greedy basic block layout

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Implement Pettis&Hanse's greedy algorithm, i.e. bottom-up variant Fixes #66420

cmd/compile: greedy basic block layout

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### Proposal Details Fine-grained performance metrics (such as L1-iTLB, IPC, branch-load, branch-load-miss, etc.) and optimization experiments(#63670) have repeatedly shown that block layout can noticably impact code execution efficiency. In contrast...