llvm-project

e45993d9 - [AMDGPU] Fix sub-dword atomic flat saddr store with no D16. NFCI (#160253)

[AMDGPU] Fix sub-dword atomic flat saddr store with no D16. NFCI (#160253) The pattern does not factor saddr. There is no way to write a test for it because gfx1200 does not have sram-ecc but also no saddr, and gfx1250 does not fall into this preserving category while has sram-ecc. Nevertheless, the day we could fix it that would become a problem. For now it is OK that change does not fail. That was untested before and it is untested now, but at least t16 block uses t16 patterns.