RFR: 8294245: Make Compile::print_inlining_stream stack allocated

[Vladimir Kozlov]

On Thu, 22 Sep 2022 17:10:40 GMT, Johan Sjölen <jsjolen at openjdk.org> wrote:

> Hi,
> 
> Could I have  a review for this? It simplifies some auxiliary code in the Compile class related to its usage of stringStream. The only notable disadvantage is that Compile will take up `sizeof(stringStream) - sizeof(stringStream*)` more space on the stack.
> 
> Currently testing tier1-3 for this change, no errors yet and almost finished.
> 
> Thanks,
> Johan

PrintInlining is used only for debugging and testing. That is why we chose to dynamically allocate data when it is needed. You are permanently increase size of Compile class which affects each compilation. Do you know size of `stringStream`. If it is small we can go with your changes.

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PR: https://git.openjdk.org/jdk/pull/10396