llvm-project

ba5cde79 - [AMDGPU][GlobalISel] Fix issue with copy_scc_vcc on gfx7 (#165355)

[AMDGPU][GlobalISel] Fix issue with copy_scc_vcc on gfx7 (#165355) When selecting for G_AMDGPU_COPY_SCC_VCC, we use S_CMP_LG_U64 or S_CMP_LG_U32 for wave64 and wave32 respectively. However, on gfx7 we do not have the S_CMP_LG_U64 instruction. Work around this issue by using S_OR_B64 instead.