[PATCH 08/79] [Backport to 15] Implement SPV_INTEL_tensor_float32_conversion extensio...

[PATCH 08/79] [Backport to 15] Implement SPV_INTEL_tensor_float32_conversion extension (#1656) (#1700)

This extension adds conversion instruction from float to tensor float (TF32)
data format. TF32 uses 1 bit for a sign, 8 bits for an exponent and 10 bits
for a fraction. This extension doesn’t introduce TF32 type in SPIR-V, instead
instruction below uses 32-bit float type to represent TF32 value.

Spec: https://github.com/intel/llvm/pull/6990

Co-authored-by: Dmitry Sidorov <dmitry.sidorov@intel.com>
Gbp-Pq: Name 0008-Backport-to-15-Implement-SPV_INTEL_tensor_float32_co.patch