1. [AMDGPU] Switch AnnotateUniformValues to MemorySSA (details)
Commit ab90ae6f476d439c275f8b7ce5fe8b827f9c390e by Stanislav.Mekhanoshin
[AMDGPU] Switch AnnotateUniformValues to MemorySSA

This shall speedup compilation and also remove threshold
limitations used by memory dependency analysis.

It also seem to fix the bug in the coalescer_remat.ll
where an SMRD load was used in presence of a potentially
clobbering store.

Fixes: SWDEV-272132

Differential Revision:
The file was modifiedllvm/test/CodeGen/AMDGPU/llc-pipeline.ll
The file was modifiedllvm/test/CodeGen/AMDGPU/global-smrd-unknown.ll
The file was modifiedllvm/test/CodeGen/AMDGPU/soft-clause-exceeds-register-budget.ll
The file was modifiedllvm/lib/Target/AMDGPU/AMDGPUAnnotateUniformValues.cpp
The file was modifiedllvm/test/CodeGen/AMDGPU/coalescer_remat.ll