hg: panama/dev: 8224988: Fix for failing regressions over Skylake.

[jatin.bhateja at intel.com]

Changeset: 73fd0971fb14
Author:    jbhateja
Date:      2019-06-18 10:09 +0530
URL:       http://hg.openjdk.java.net/panama/dev/rev/73fd0971fb14

8224988: Fix for failing regressions over Skylake.
Summary: Discrepancy b/w operand type and usage withing instruction encode block is fixed.
  Register allocator may allocate VecX operand from higher register-bank for target supporting
  AVX512, but its user instruction expects it to be allocated always from lower register-bank.
Reviewed-by: vdeshpande
Contributed-by: Jatin Bhateja <jatin.bhateja at intel.com>

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