RFR: 8267982: Set the node after peephole optimization to be removed

Tue Jun 1 01:32:37 UTC 2021

Hi all,

Enable peephole can cause SIGSEGV sometimes in OopFlow::build_oop_map(Node*, int, PhaseRegAlloc*, int*)+0x238 , so must set a removed-flags for the peephole-nodes , to avoid be set-live-bit() and cause crash.
 Please review this trivial change.

Thanks,
Sun Guoyun

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Commit messages:
 - 8267982: Set the node after peephole optimization to be removed

Changes: https://git.openjdk.java.net/jdk/pull/4276/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4276&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267982
  Stats: 7 lines in 3 files changed: 5 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/4276.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/4276/head:pull/4276

PR: https://git.openjdk.java.net/jdk/pull/4276