RFR: 8349479: C2: when a Type node becomes dead, make CFG path that uses it unreachable [v2]

[Roland Westrelin]

On Thu, 20 Mar 2025 08:27:04 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> Roland Westrelin has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   review
>
> test/hotspot/jtreg/compiler/c2/TestGuardOfCastIIDoesntFold.java line 30:
> 
>> 28:  * @run main/othervm -XX:-TieredCompilation -XX:-BackgroundCompilation -XX:-UseOnStackReplacement
>> 29:  *                   -XX:CompileCommand=dontinline,TestGuardOfCastIIDoesntFold::notInlined
>> 30:  *                   TestGuardOfCastIIDoesntFold
> 
> Nit: can we have a run without flags, please ;)

Done in new commit.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/23468#discussion_r2018890260