Integrated: 8271203: C2: assert(iff->Opcode() == Op_If || iff->Opcode() == Op_CountedLoopEnd || iff->Opcode() == Op_RangeCheck) failed: Check this code when new subtype is added

[Yi Yang]

On Wed, 28 Jul 2021 09:54:29 GMT, Yi Yang <yyang at openjdk.org> wrote:

> Hi, I'm trying to fix [JDK-8271203](https://bugs.openjdk.java.net/browse/JDK-8271203). It's reasonable to unswitch LongCountedLoop, so relax it.
> 
> ![image](https://user-images.githubusercontent.com/5010047/127302280-0faa90bb-add7-4639-8c63-49668901f267.png)

This pull request has now been integrated.

Changeset: 3f38a50c
Author:    Yi Yang <yyang at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/3f38a50c528cccc30ca9e513b15ce9866d92aa82
Stats:     66 lines in 2 files changed: 64 ins; 0 del; 2 mod

8271203: C2: assert(iff->Opcode() == Op_If || iff->Opcode() == Op_CountedLoopEnd || iff->Opcode() == Op_RangeCheck) failed: Check this code when new subtype is added

Reviewed-by: chagedorn, roland, thartmann

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PR: https://git.openjdk.java.net/jdk/pull/4920