Cheng Shao pushed to branch wip/faster-linkBCO at Glasgow Haskell Compiler / GHC

Commits:

• 1433ee49
  by Cheng Shao at 2026-03-21T01:15:31+00:00

  ghci: use SmallArray directly in ResolvedBCO
  
  This patch makes ghci use `SmallArray` directly in `ResolvedBCO` when
  applicable, making the memory representation more compact and reducing
  marshaling overhead. Closes #27058.
  

• e57d087b
  by Cheng Shao at 2026-03-21T01:40:59+00:00

  compiler: use SmallArray directly in UnlinkedBCO
  
  This patch makes the compiler use `SmallArray` directly in
  `UnlinkedBCO` when applicable, making the memory representation more
  compact and reducing marshaling overhead.
  

1 changed file:

• compiler/GHC/ByteCode/Types.hs

Changes:

         unlinkedBCOArity  :: {-# UNPACK #-} !Int,

         unlinkedBCOInstrs :: !(BCOByteArray Word16),      -- insns

         unlinkedBCOBitmap :: !(BCOByteArray Word),      -- bitmap

-        unlinkedBCOLits   :: !(SmallArray BCONPtr),       -- non-ptrs

-        unlinkedBCOPtrs   :: !(SmallArray BCOPtr)         -- ptrs

+        unlinkedBCOLits   :: !(SmallArray BCONPtr),     -- non-ptrs

+        unlinkedBCOPtrs   :: !(SmallArray BCOPtr)       -- ptrs

    }

 instance NFData UnlinkedBCO where