llvm-project

ba7feaab - [AMDGPU][Docs] Fix and update AMDGPUUsage.rst (#133894)

[AMDGPU][Docs] Fix and update AMDGPUUsage.rst (#133894) - Fix notes about SALU float and src1 SGPRs for dpp instructions - Add split between gfx11 and gfx12 sections, update references.