[PATCH] D83965: MIR Statepoint refactoring. Part 5: Handle non-local relocates in ISEL.

[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.

When gc.relocate is in different basic block from statepoint,
corresponding statepoint result must be exported to register.
Default LLVM mechanism does not work here, because on IR level
statepoint does not produce relocated values.
We have to manually export statepoint results into register and
copy it back at gc.relocate location. We also need a dedicated
map for that because we cannot use FunctionLowering.ValueMap.
Depends On D81648 <https://reviews.llvm.org/D81648>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83965

Files:
  llvm/include/llvm/CodeGen/FunctionLoweringInfo.h
  llvm/lib/CodeGen/SelectionDAG/StatepointLowering.cpp
  llvm/test/CodeGen/X86/statepoint-vreg.ll

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