[jdk17u-dev] RFR: 8297264: C2: Cast node is not processed again in CCP and keeps a wrong too narrow type which is later replaced by top

[Goetz Lindenmaier]

On Tue, 17 Jan 2023 17:19:44 GMT, Goetz Lindenmaier <goetz at openjdk.org> wrote:

> I backport this for parity with 17.0.7-oracle.
> 
> I had to place the call to push_cast_ii by hand.
> In head, PhaseCCP::analyze() is refactored. 
> I also took push_if_not_bottom_type() from head
> to make it as similar as possible.

Pre-submit test failure: boot jdk download failed, unrelated.

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PR: https://git.openjdk.org/jdk17u-dev/pull/1078