RFR: JDK-8295406: C1 crash with -XX:TypeProfileArgsLimit=0 -XX:TypeProfileLevel=222

Damon Fenacci duke at openjdk.org
Fri Jan 6 07:26:58 UTC 2023


On Wed, 4 Jan 2023 13:41:36 GMT, Damon Fenacci <duke at openjdk.org> wrote:

> `-XX:TypeProfileArgsLimit=0 -XX:TypeProfileLevel=222` cause an assert to fail in `LIRGenerator::profile_arguments`.
> 
> `LIRGenerator::profile_arguments` actually checks if arguments need to be profiled but the `MethodData::profile_arguments` method doesn't take `TypeProfileArgsLimit=0` into account.
> 
> Adding a check for _TypeProfileArgsLimit>0_ to determine if arguments have to be profiled.

@rwestrel thanks a lot for your hint!

Added `TestTypeProfileArgsLimit` regression test that checks for `TypeProfileArgsLimit=0` and `TypeProfileLevel=222` plus a few other combinations of `TypeProfileArgsLimit`, `TypeProfileLevel` and `TypeProfileParmsLimit`.

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PR: https://git.openjdk.org/jdk/pull/11843


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