RFR(XS): 8213779: Loop opts anti dependent store detection should ignore uncommon trap calls

Vladimir Kozlov vladimir.kozlov at oracle.com
Tue Nov 13 18:52:46 UTC 2018

Looks good.

Based on history there was CheckTypeNode subclass of IfNode which had more inputs.


On 11/13/18 1:05 AM, Roland Westrelin wrote:
> http://cr.openjdk.java.net/~roland/8213779/webrev.00/
> This is a small improvement to anti dependent store detection during
> loop opts: uncommon trap calls don't make any change to the memory state
> so shouldn't be considered as stores. Unrelated, this patch removes what
> appears to be dead code in ifnode.cpp (an IfNode never has 3 inputs).
> Roland.

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