[10] RFR(M): 8176506: C2: loop unswitching and unsafe accesses cause crash

Vladimir Kozlov vladimir.kozlov at oracle.com
Tue May 16 04:45:20 UTC 2017

Looks good to me.

Volker should look too.


On 5/12/17 12:55 AM, Roland Westrelin wrote:
>> X86 Manual says:
>> "Use the 0F0B opcode (UD2 instruction) or the 0FB9H opcode when
>> deliberately trying to generate an invalid opcode exception (#UD)."
> Thanks, Vladimir.
> Here is a new webrev. Halt now should trigger a SIGILL on all
> platforms. I tested x86, aarch64, arm64. The code for arm32 needs to be
> tested (I can't even build on arm32).
> http://cr.openjdk.java.net/~roland/8176506/webrev.04/
> Roland.

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