1 files changed, 0 insertions, 104 deletions
diff --git a/compiler/nir/nirslots.nim b/compiler/nir/nirslots.nim
deleted file mode 100644
index a01e7a633..000000000
--- a/compiler/nir/nirslots.nim
+++ /dev/null
@@ -1,104 +0,0 @@
-#
-#
-#           The Nim Compiler
-#        (c) Copyright 2023 Andreas Rumpf
-#
-#    See the file "copying.txt", included in this
-#    distribution, for details about the copyright.
-#
-
-## Management of slots. Similar to "register allocation"
-## in lower level languages.
-
-import std / [assertions, tables]
-import nirtypes, nirinsts
-
-type
-  SlotManagerFlag* = enum
-    ReuseTemps,
-    ReuseVars
-  SlotKind* = enum
-    Temp, Perm
-  SlotManager* = object # "register allocator"
-    live: Table[SymId, (SlotKind, TypeId)]
-    dead: Table[TypeId, seq[SymId]]
-    flags: set[SlotManagerFlag]
-    inScope: seq[SymId]
-
-proc initSlotManager*(flags: set[SlotManagerFlag]): SlotManager {.inline.} =
-  SlotManager(flags: flags)
-
-proc allocRaw(m: var SlotManager; t: TypeId; f: SlotManagerFlag; k: SlotKind;
-              symIdgen: var int32): SymId {.inline.} =
-  if f in m.flags and m.dead.hasKey(t) and m.dead[t].len > 0:
-    result = m.dead[t].pop()
-  else:
-    inc symIdgen
-    result = SymId(symIdgen)
-    m.inScope.add result
-  m.live[result] = (k, t)
-
-proc allocTemp*(m: var SlotManager; t: TypeId; symIdgen: var int32): SymId {.inline.} =
-  result = allocRaw(m, t, ReuseTemps, Temp, symIdgen)
-
-proc allocVar*(m: var SlotManager; t: TypeId; symIdgen: var int32): SymId {.inline.} =
-  result = allocRaw(m, t, ReuseVars, Perm, symIdgen)
-
-proc freeLoc*(m: var SlotManager; s: SymId) =
-  let t = m.live.getOrDefault(s)
-  assert t[1].int != 0
-  m.live.del s
-  m.dead.mgetOrPut(t[1], @[]).add s
-
-proc freeTemp*(m: var SlotManager; s: SymId) =
-  let t = m.live.getOrDefault(s)
-  if t[1].int != 0 and t[0] == Temp:
-    m.live.del s
-    m.dead.mgetOrPut(t[1], @[]).add s
-
-iterator stillAlive*(m: SlotManager): (SymId, TypeId) =
-  for k, v in pairs(m.live):
-    yield (k, v[1])
-
-proc getType*(m: SlotManager; s: SymId): TypeId {.inline.} = m.live[s][1]
-
-proc openScope*(m: var SlotManager) =
-  m.inScope.add SymId(-1) # add marker
-
-proc closeScope*(m: var SlotManager) =
-  var i = m.inScope.len - 1
-  while i >= 0:
-    if m.inScope[i] == SymId(-1):
-      m.inScope.setLen i
-      break
-    dec i
-
-when isMainModule:
-  var symIdgen: int32
-  var m = initSlotManager({ReuseTemps})
-
-  var g = initTypeGraph(Literals())
-
-  let a = g.openType ArrayTy
-  g.addBuiltinType Int8Id
-  g.addArrayLen 5
-  let finalArrayType = finishType(g, a)
-
-  let obj = g.openType ObjectDecl
-  g.addName "MyType"
-
-  g.addField "p", finalArrayType, 0
-  let objB = finishType(g, obj)
-
-  let x = m.allocTemp(objB, symIdgen)
-  assert x.int == 0
-
-  let y = m.allocTemp(objB, symIdgen)
-  assert y.int == 1
-
-  let z = m.allocTemp(Int8Id, symIdgen)
-  assert z.int == 2
-
-  m.freeLoc y
-  let y2 = m.allocTemp(objB, symIdgen)
-  assert y2.int == 1