[PATCH] D101313: Drop the GCNRegBankReassign pass

[Baptiste Saleil via Phabricator via llvm-commits]

bsaleil created this revision.
bsaleil added projects: LLVM, AMDGPU.
Herald added subscribers: wenlei, kerbowa, asbirlea, mgrang, hiraditya, mgorny, nhaehnle, jvesely, arsenm.
bsaleil requested review of this revision.
Herald added a subscriber: llvm-commits.

Experiments show that the GCNRegBankReassign pass significantly impacts the compilation time and there is no case for which we see any improvement in performance. 
This patch removes this pass and its associated test cases from the tree.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D101313

Files:
  llvm/lib/Target/AMDGPU/AMDGPU.h
  llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
  llvm/lib/Target/AMDGPU/CMakeLists.txt
  llvm/lib/Target/AMDGPU/GCNRegBankReassign.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/ashr.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.i128.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.i16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.i8.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/extractelement.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/fdiv.f16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/fdiv.f32.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/fdiv.f64.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/fma.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/fshl.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/fshr.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.i16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.i8.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/insertelement.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.atomic.inc.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.image.gather4.a16.dim.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.image.gather4.dim.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.image.load.3d.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.image.sample.g16.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.sdot4.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.udot4.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.waterfall.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.wqm.demote.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/load-local.128.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/load-local.96.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/load-unaligned.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/lshr.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/mul.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/roundeven.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/saddsat.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/shl.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/ssubsat.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/store-local.128.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/store-local.96.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/uaddsat.ll
  llvm/test/CodeGen/AMDGPU/GlobalISel/usubsat.ll
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_local_pointer.ll
  llvm/test/CodeGen/AMDGPU/atomic_optimizations_pixelshader.ll
  llvm/test/CodeGen/AMDGPU/ctlz.ll
  llvm/test/CodeGen/AMDGPU/cvt_f32_ubyte.ll
  llvm/test/CodeGen/AMDGPU/ds-sub-offset.ll
  llvm/test/CodeGen/AMDGPU/fneg-fold-legalize-dag-increase-insts.ll
  llvm/test/CodeGen/AMDGPU/frem.ll
  llvm/test/CodeGen/AMDGPU/fshr.ll
  llvm/test/CodeGen/AMDGPU/idiv-licm.ll
  llvm/test/CodeGen/AMDGPU/idot2.ll
  llvm/test/CodeGen/AMDGPU/idot4s.ll
  llvm/test/CodeGen/AMDGPU/idot4u.ll
  llvm/test/CodeGen/AMDGPU/idot8s.ll
  llvm/test/CodeGen/AMDGPU/idot8u.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.image.dim.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.image.sample.a16.dim.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.image.sample.d16.dim.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.image.sample.dim.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.image.sample.g16.encode.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.image.sample.g16.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.waterfall.ll
  llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wqm.demote.ll
  llvm/test/CodeGen/AMDGPU/llvm.mulo.ll
  llvm/test/CodeGen/AMDGPU/lshr.v2i16.ll
  llvm/test/CodeGen/AMDGPU/memory_clause.ll
  llvm/test/CodeGen/AMDGPU/regbank-reassign-split.mir
  llvm/test/CodeGen/AMDGPU/regbank-reassign-wave64.mir
  llvm/test/CodeGen/AMDGPU/regbank-reassign.mir
  llvm/test/CodeGen/AMDGPU/saddo.ll
  llvm/test/CodeGen/AMDGPU/saddsat.ll
  llvm/test/CodeGen/AMDGPU/shl.v2i16.ll
  llvm/test/CodeGen/AMDGPU/ssubsat.ll
  llvm/test/CodeGen/AMDGPU/store-local.128.ll
  llvm/test/CodeGen/AMDGPU/store-local.96.ll
  llvm/test/CodeGen/AMDGPU/strict_fadd.f64.ll
  llvm/test/CodeGen/AMDGPU/strict_fma.f16.ll
  llvm/test/CodeGen/AMDGPU/strict_fma.f64.ll
  llvm/test/CodeGen/AMDGPU/strict_fmul.f64.ll
  llvm/test/CodeGen/AMDGPU/strict_fsub.f64.ll
  llvm/test/CodeGen/AMDGPU/vector_shuffle.packed.ll