[PATCH] D111285: Fix invalid Kill on callee save on RISC-V

[David Callahan via Phabricator via llvm-commits]

david2050 added a comment.

An example of incorrect code in baseline is below where the spill of X1 is marked killed but is live to the following SW.

  Function Live Ins: $x1
  
  bb.0.entry:
    liveins: $x1
    $x2 = frame-setup ADDI $x2, -32
    CFI_INSTRUCTION def_cfa_offset 32
    SD killed $x1, $x2, 24
    SD killed $x8, $x2, 16
    CFI_INSTRUCTION offset $x1, -8
    CFI_INSTRUCTION offset $x8, -16
    $x8 = frame-setup ADDI $x2, 32
    CFI_INSTRUCTION def_cfa $x8, 0
    SW killed renamable $x1, $x8, -20 :: (store 4 into %ir.a)


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D111285/new/

https://reviews.llvm.org/D111285