[jdk13u-dev] Integrated: 8272574: C2: assert(false) failed: Bad graph detected in build_loop_late

[Yuri Nesterenko]

Should be backported for parity with major releases. First series of tests run OK.

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Commit messages:
 - Backport 16c3ad1ff4d9a0e21f15656c73a96a6c143c811a

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/352/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=352&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272574
  Stats: 96 lines in 4 files changed: 91 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/352.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/352/head:pull/352

PR: https://git.openjdk.java.net/jdk13u-dev/pull/352