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add a short comment on result type, marshalCmmBlockBranch

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This commit is contained in:
Norman Ramsey 2021-10-22 09:50:24 -04:00
parent 9f2574d9c2
commit 7e9eaf743d
1 changed files with 2 additions and 0 deletions
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asterius/src/Asterius/CodeGen.hs
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@ -1561,6 +1561,8 @@ newtype NeedsUnreachableBlock = NeedsUnreachableBlock Bool
marshalCmmBlockBranch ::
GHC.CmmNode GHC.O GHC.C ->
CodeGen ([Expression], Maybe Expression, [RelooperAddBranch], NeedsUnreachableBlock)
-- results: branch hwelpers, siwtch cond expr, branches,
marshalCmmBlockBranch instr = case instr of
GHC.CmmBranch lbl -> do
k <- marshalLabel lbl