[PATCH] D81647: MIR Statepoint refactoring. Part 3: Spill GC Ptr regs.

[Denis Antrushin via Phabricator via llvm-commits]

dantrushin created this revision.
dantrushin added reviewers: reames, skatkov.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.

Extend FixupStatepointCallerSaved pass with ability to spill
statepoint GC pointer arguments (optionally allowing them on CSRs).
Special handling is required for invoke statepoints, because at MI
level single landing pad may be shared my multiple statepoints, so
we must ensure we spill landing pad's live-ins into the same stack
slots.

Full change set is available at D81603 <https://reviews.llvm.org/D81603>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D81647

Files:
  llvm/lib/CodeGen/FixupStatepointCallerSaved.cpp
  llvm/test/CodeGen/X86/statepoint-vreg.mir

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