git: openjdk/jdk: 8300865: C2: product reduction in ProdRed_Double is not vectorized

[Sandhya Viswanathan]

Changeset: f9ad7df4
Author:    Sandhya Viswanathan <sviswanathan at openjdk.org>
Date:      2023-05-31 22:39:54 +0000
URL:       https://git.openjdk.org/jdk/commit/f9ad7df4dafa0a2da38e8cbb4150049fb04f4327

8300865: C2: product reduction in ProdRed_Double is not vectorized

Reviewed-by: fgao, epeter, kvn

! src/hotspot/share/opto/superword.cpp
! test/hotspot/jtreg/compiler/loopopts/superword/ProdRed_Double.java
! test/micro/org/openjdk/bench/vm/compiler/VectorReduction.java