llvm-project

e486a26b - [AMDGPU] Add liverange split instructions into BB Prolog (#117544)

[AMDGPU] Add liverange split instructions into BB Prolog (#117544) The COPY inserted for liverange split during sgpr-regalloc pipeline currently breaks the BB prolog during the subsequent vgpr-regalloc phase while spilling and/or splitting the vector liveranges. This patch fixes it by correctly including the LR split instructions during sgpr-regalloc and wwm-regalloc pipelines into the BB prolog.