Integrated: 8266388: C2: Improve constant ShiftCntV on x86

Vladimir Ivanov vlivanov at openjdk.java.net
Mon May 3 09:50:57 UTC 2021


On Fri, 30 Apr 2021 19:18:37 GMT, Vladimir Ivanov <vlivanov at openjdk.org> wrote:

> Clone ShiftCntV w/ a constant input during matching on x86. 
> It enables `vshiftI_imm`/`vshiftL_imm` when ShiftCntV is shared.
> 
> Testing:
> - [x] hs-tier1 - hs-tier4

This pull request has now been integrated.

Changeset: b42d4969
Author:    Vladimir Ivanov <vlivanov at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/b42d4969b1753e717a66218fd465243dfeccd455
Stats:     6 lines in 3 files changed: 4 ins; 0 del; 2 mod

8266388: C2: Improve constant ShiftCntV on x86

Reviewed-by: kvn

-------------

PR: https://git.openjdk.java.net/jdk/pull/3823


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