[9] RFR(S): 8139377: JVM can't be started w/ -XX:+EnableJVMCI -XX:+UseJVMCICompiler and default TypeProfileWidth

[Igor Veresov]

Looks good.

igor

> On Oct 12, 2015, at 9:16 AM, Zoltán Majó <zoltan.majo at oracle.com> wrote:
> 
> Hi,
> 
> 
> please review the following patch for JDK-8139377.
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8139377
> 
> Problem: JDK-8078554 defined a valid range for compiler-related command-line flags. The JVM checks at runtime if the value of each flag is within the range defined for the flag. JEP 243 (Java-Level JVM Compiler Interface) increased the value of TypeProfileWidth to 8 that is outside of the currently defined range for that flag.
> 
> Solution: Increase the upper bound of TypeProfileWidth to 8. I also tried to increase the value to 16 but that value triggers an assert on one of our supported platforms.
> 
> Webrev:
> http://cr.openjdk.java.net/~zmajo/8139377/webrev.00/
> 
> Testing:
> - all tests in hotspot/test/runtime/CommandLine on all supported platforms, all tests pass;
> - JPRT (testset hotspot), all tests pass.
> 
> Thank you and best regards,
> 
> 
> Zoltan
>