Integrated: 8264063: Outer Safepoint poll load should not reference the head of inner strip mined loop.
kvn at openjdk.java.net
Thu Apr 8 15:09:15 UTC 2021
On Wed, 7 Apr 2021 02:29:20 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:
> When loop is "strip mined" polling address load ([parse1.cpp#L2280](https://github.com/openjdk/jdk/blob/master/src/hotspot/share/opto/parse1.cpp#L2280)) should be cloned together with safepoint node and pinned outside inner loop. Otherwise we have issues like (https://bugs.openjdk.java.net/browse/JDK-8263352)
> I also remove leftover (unused needs_polling_address_input() method) from (https://bugs.openjdk.java.net/browse/JDK-8220051) changes.
> Tested hs-tier1-4
This pull request has now been integrated.
Author: Vladimir Kozlov <kvn at openjdk.org>
Stats: 57 lines in 7 files changed: 10 ins; 46 del; 1 mod
8264063: Outer Safepoint poll load should not reference the head of inner strip mined loop.
Reviewed-by: roland, vlivanov
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