[PATCH 06/79] [Backport to 15] Add SPV_INTEL_masked_gather_scatter extension (#1580...

[PATCH 06/79] [Backport to 15] Add SPV_INTEL_masked_gather_scatter extension (#1580) (#1695)

This extension allows TypeVector to have a Physical Pointer Type
Component Type and introduces gather/scatter instructions.
It will be useful for explicitly vectorized kernels.

Spec: https://github.com/intel/llvm/pull/6613

Signed-off-by: Sidorov, Dmitry <dmitry.sidorov@intel.com
Signed-off-by: Sidorov, Dmitry <dmitry.sidorov@intel.com
Co-authored-by: Dmitry Sidorov <dmitry.sidorov@intel.com>
Gbp-Pq: Name 0006-Backport-to-15-Add-SPV_INTEL_masked_gather_scatter-e.patch