[PATCH] D131825: (Reland) [fastalloc] Support allocating specific register class in fastalloc

[LuoYuanke via Phabricator via llvm-commits]

LuoYuanke created this revision.
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Reland commit 719658d078c4 <https://reviews.llvm.org/rG719658d078c4093d1ee716fb65ae94673df7b22b>

The base RA support infrastructure that only allow a specific register
class be allocated in RA pss. Since greedy RA, basic RA derived from
base RA, they all allow allocating specific register class. Fast RA
doesn't support allocating register for specific register class. This
patch is to enable ShouldAllocateClass in fast RA, so that it can
support allocating register for specific register class.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D131825

Files:
  llvm/lib/CodeGen/RegAllocFast.cpp
  llvm/test/CodeGen/AMDGPU/GlobalISel/image-waterfall-loop-O0.ll
  llvm/test/CodeGen/AMDGPU/cf-loop-on-constant.ll
  llvm/test/CodeGen/AMDGPU/collapse-endcf.ll
  llvm/test/CodeGen/AMDGPU/control-flow-fastregalloc.ll
  llvm/test/CodeGen/AMDGPU/indirect-addressing-term.ll
  llvm/test/CodeGen/AMDGPU/mubuf-legalize-operands.ll
  llvm/test/CodeGen/AMDGPU/no-source-locations-in-prologue.ll
  llvm/test/CodeGen/AMDGPU/sgpr-spills-split-regalloc.ll
  llvm/test/CodeGen/AMDGPU/wwm-reserved-spill.ll

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