remove unused stuff

27 files changed, 5 insertions, 406 deletions

diff --git a/compiler/ast.nim b/compiler/ast.nim
index 277a21ba5..a5357b2b4 100644
--- a/compiler/ast.nim
+++ b/compiler/ast.nim
@@ -862,9 +862,6 @@ type
     key*, val*: RootRef
 
   TPairSeq* = seq[TPair]
-  TTable* = object   # the same as table[PObject] of PObject
-    counter*: int
-    data*: TPairSeq
 
   TIdPair* = object
     key*: PIdObj
@@ -1108,12 +1105,6 @@ proc copyIdTable*(dest: var TIdTable, src: TIdTable) =
   newSeq(dest.data, len(src.data))
   for i in countup(0, high(src.data)): dest.data[i] = src.data[i]
 
-proc copyTable*(dest: var TTable, src: TTable) =
-  dest.counter = src.counter
-  if isNil(src.data): return
-  setLen(dest.data, len(src.data))
-  for i in countup(0, high(src.data)): dest.data[i] = src.data[i]
-
 proc copyObjectSet*(dest: var TObjectSet, src: TObjectSet) =
   dest.counter = src.counter
   if isNil(src.data): return
@@ -1327,10 +1318,6 @@ proc initStrTable*(x: var TStrTable) =
 proc newStrTable*: TStrTable =
   initStrTable(result)
 
-proc initTable(x: var TTable) =
-  x.counter = 0
-  newSeq(x.data, StartSize)
-
 proc initIdTable*(x: var TIdTable) =
   x.counter = 0
   newSeq(x.data, StartSize)
@@ -1511,16 +1498,6 @@ proc hasSubnodeWith*(n: PNode, kind: TNodeKind): bool =
         return true
     result = false
 
-proc replaceSons(n: PNode, oldKind, newKind: TNodeKind) =
-  for i in countup(0, sonsLen(n) - 1):
-    if n.sons[i].kind == oldKind: n.sons[i].kind = newKind
-
-proc sonsNotNil(n: PNode): bool =
-  for i in countup(0, sonsLen(n) - 1):
-    if n.sons[i] == nil:
-      return false
-  result = true
-
 proc getInt*(a: PNode): BiggestInt =
   case a.kind
   of nkIntLit..nkUInt64Lit: result = a.intVal
diff --git a/compiler/astalgo.nim b/compiler/astalgo.nim
index 3ca44ea7e..7c07b2995 100644
--- a/compiler/astalgo.nim
+++ b/compiler/astalgo.nim
@@ -31,17 +31,6 @@ proc objectSetIncl*(t: var TObjectSet, obj: RootRef)
 proc objectSetContainsOrIncl*(t: var TObjectSet, obj: RootRef): bool
   # more are not needed ...
 
-# ----------------------- (key, val)-Hashtables ----------------------------
-proc tablePut*(t: var TTable, key, val: RootRef)
-proc tableGet*(t: TTable, key: RootRef): RootRef
-type
-  TCmpProc* = proc (key, closure: RootRef): bool {.nimcall.} # true if found
-
-proc tableSearch*(t: TTable, key, closure: RootRef,
-                  comparator: TCmpProc): RootRef
-  # return val as soon as comparator returns true; if this never happens,
-  # nil is returned
-
 # ----------------------- str table -----------------------------------------
 proc strTableContains*(t: TStrTable, n: PSym): bool
 proc strTableAdd*(t: var TStrTable, n: PSym)
@@ -251,20 +240,6 @@ proc symToYamlAux(n: PSym, marker: var IntSet,
                   indent, maxRecDepth: int): Rope
 proc typeToYamlAux(n: PType, marker: var IntSet,
                    indent, maxRecDepth: int): Rope
-proc strTableToYaml(n: TStrTable, marker: var IntSet, indent: int,
-                    maxRecDepth: int): Rope =
-  var istr = rspaces(indent + 2)
-  result = rope("[")
-  var mycount = 0
-  for i in countup(0, high(n.data)):
-    if n.data[i] != nil:
-      if mycount > 0: add(result, ",")
-      addf(result, "$N$1$2",
-           [istr, symToYamlAux(n.data[i], marker, indent + 2, maxRecDepth - 1)])
-      inc(mycount)
-  if mycount > 0: addf(result, "$N$1", [rspaces(indent)])
-  add(result, "]")
-  assert(mycount == n.counter)
 
 proc ropeConstr(indent: int, c: openArray[Rope]): Rope =
   # array of (name, value) pairs
@@ -463,9 +438,6 @@ proc debug(n: PType) =
 proc debug(n: PNode) =
   echo($debugTree(n, 0, 100))
 
-const
-  EmptySeq = @[]
-
 proc nextTry(h, maxHash: Hash): Hash =
   result = ((5 * h) + 1) and maxHash
   # For any initial h in range(maxHash), repeating that maxHash times
@@ -519,55 +491,6 @@ proc objectSetContainsOrIncl(t: var TObjectSet, obj: RootRef): bool =
   inc(t.counter)
   result = false
 
-proc tableRawGet(t: TTable, key: RootRef): int =
-  var h: Hash = hashNode(key) and high(t.data) # start with real hash value
-  while t.data[h].key != nil:
-    if t.data[h].key == key:
-      return h
-    h = nextTry(h, high(t.data))
-  result = -1
-
-proc tableSearch(t: TTable, key, closure: RootRef,
-                 comparator: TCmpProc): RootRef =
-  var h: Hash = hashNode(key) and high(t.data) # start with real hash value
-  while t.data[h].key != nil:
-    if t.data[h].key == key:
-      if comparator(t.data[h].val, closure):
-        # BUGFIX 1
-        return t.data[h].val
-    h = nextTry(h, high(t.data))
-  result = nil
-
-proc tableGet(t: TTable, key: RootRef): RootRef =
-  var index = tableRawGet(t, key)
-  if index >= 0: result = t.data[index].val
-  else: result = nil
-
-proc tableRawInsert(data: var TPairSeq, key, val: RootRef) =
-  var h: Hash = hashNode(key) and high(data)
-  while data[h].key != nil:
-    assert(data[h].key != key)
-    h = nextTry(h, high(data))
-  assert(data[h].key == nil)
-  data[h].key = key
-  data[h].val = val
-
-proc tableEnlarge(t: var TTable) =
-  var n: TPairSeq
-  newSeq(n, len(t.data) * GrowthFactor)
-  for i in countup(0, high(t.data)):
-    if t.data[i].key != nil: tableRawInsert(n, t.data[i].key, t.data[i].val)
-  swap(t.data, n)
-
-proc tablePut(t: var TTable, key, val: RootRef) =
-  var index = tableRawGet(t, key)
-  if index >= 0:
-    t.data[index].val = val
-  else:
-    if mustRehash(len(t.data), t.counter): tableEnlarge(t)
-    tableRawInsert(t.data, key, val)
-    inc(t.counter)
-
 proc strTableContains(t: TStrTable, n: PSym): bool =
   var h: Hash = n.name.h and high(t.data) # start with real hash value
   while t.data[h] != nil:
diff --git a/compiler/ccgcalls.nim b/compiler/ccgcalls.nim
index 408a0c09c..48157925c 100644
--- a/compiler/ccgcalls.nim
+++ b/compiler/ccgcalls.nim
@@ -411,7 +411,7 @@ proc genPatternCall(p: BProc; ri: PNode; pat: string; typ: PType): Rope =
         add(result, substr(pat, start, i - 1))
 
 proc genInfixCall(p: BProc, le, ri: PNode, d: var TLoc) =
-  var op, a: TLoc
+  var op: TLoc
   initLocExpr(p, ri.sons[0], op)
   # getUniqueType() is too expensive here:
   var typ = skipTypes(ri.sons[0].typ, abstractInst)
@@ -458,7 +458,7 @@ proc genInfixCall(p: BProc, le, ri: PNode, d: var TLoc) =
 
 proc genNamedParamCall(p: BProc, ri: PNode, d: var TLoc) =
   # generates a crappy ObjC call
-  var op, a: TLoc
+  var op: TLoc
   initLocExpr(p, ri.sons[0], op)
   var pl = ~"["
   # getUniqueType() is too expensive here:
diff --git a/compiler/ccgexprs.nim b/compiler/ccgexprs.nim
index 67debfe4f..8d0ead368 100644
--- a/compiler/ccgexprs.nim
+++ b/compiler/ccgexprs.nim
@@ -30,19 +30,6 @@ proc intLiteral(i: BiggestInt): Rope =
   else:
     result = ~"(IL64(-9223372036854775807) - IL64(1))"
 
-proc int32Literal(i: int): Rope =
-  if i == int(low(int32)):
-    result = ~"(-2147483647 -1)"
-  else:
-    result = rope(i)
-
-proc genHexLiteral(v: PNode): Rope =
-  # hex literals are unsigned in C
-  # so we don't generate hex literals any longer.
-  if v.kind notin {nkIntLit..nkUInt64Lit}:
-    internalError(v.info, "genHexLiteral")
-  result = intLiteral(v.intVal)
-
 proc getStrLit(m: BModule, s: string): Rope =
   discard cgsym(m, "TGenericSeq")
   result = getTempName(m)
@@ -395,9 +382,6 @@ proc genDeepCopy(p: BProc; dest, src: TLoc) =
     linefmt(p, cpsStmts, "$1 = $2;$n", rdLoc(dest), rdLoc(src))
   else: internalError("genDeepCopy: " & $ty.kind)
 
-proc getDestLoc(p: BProc, d: var TLoc, typ: PType) =
-  if d.k == locNone: getTemp(p, typ, d)
-
 proc putLocIntoDest(p: BProc, d: var TLoc, s: TLoc) =
   if d.k != locNone:
     if lfNoDeepCopy in d.flags: genAssignment(p, d, s, {})
@@ -448,13 +432,6 @@ proc unaryStmt(p: BProc, e: PNode, d: var TLoc, frmt: string) =
   initLocExpr(p, e.sons[1], a)
   lineCg(p, cpsStmts, frmt, [rdLoc(a)])
 
-proc binaryStmtChar(p: BProc, e: PNode, d: var TLoc, frmt: string) =
-  var a, b: TLoc
-  if (d.k != locNone): internalError(e.info, "binaryStmtChar")
-  initLocExpr(p, e.sons[1], a)
-  initLocExpr(p, e.sons[2], b)
-  lineCg(p, cpsStmts, frmt, [rdCharLoc(a), rdCharLoc(b)])
-
 proc binaryExpr(p: BProc, e: PNode, d: var TLoc, frmt: string) =
   var a, b: TLoc
   assert(e.sons[1].typ != nil)
@@ -1236,7 +1213,6 @@ proc genNewFinalize(p: BProc, e: PNode) =
     a, b, f: TLoc
     refType, bt: PType
     ti: Rope
-    oldModule: BModule
   refType = skipTypes(e.sons[1].typ, abstractVarRange)
   initLocExpr(p, e.sons[1], a)
   initLocExpr(p, e.sons[2], f)
@@ -1671,7 +1647,6 @@ proc binaryFloatArith(p: BProc, e: PNode, d: var TLoc, m: TMagic) =
     binaryArith(p, e, d, m)
 
 proc genMagicExpr(p: BProc, e: PNode, d: var TLoc, op: TMagic) =
-  var line, filen: Rope
   case op
   of mOr, mAnd: genAndOr(p, e, d, op)
   of mNot..mToBiggestInt: unaryArith(p, e, d, op)
diff --git a/compiler/ccgstmts.nim b/compiler/ccgstmts.nim
index a5ce147c3..e1734bc52 100644
--- a/compiler/ccgstmts.nim
+++ b/compiler/ccgstmts.nim
@@ -459,7 +459,6 @@ proc genWhileStmt(p: BProc, t: PNode) =
   # significantly worse code
   var
     a: TLoc
-    labl: TLabel
   assert(sonsLen(t) == 2)
   inc(p.withinLoop)
   genLineDir(p, t)
@@ -757,16 +756,6 @@ proc genCase(p: BProc, t: PNode, d: var TLoc) =
     else:
       genOrdinalCase(p, t, d)
 
-proc hasGeneralExceptSection(t: PNode): bool =
-  var length = sonsLen(t)
-  var i = 1
-  while (i < length) and (t.sons[i].kind == nkExceptBranch):
-    var blen = sonsLen(t.sons[i])
-    if blen == 1:
-      return true
-    inc(i)
-  result = false
-
 proc genTryCpp(p: BProc, t: PNode, d: var TLoc) =
   # code to generate:
   #
@@ -1089,7 +1078,6 @@ proc genDiscriminantCheck(p: BProc, a, tmp: TLoc, objtype: PType,
 proc asgnFieldDiscriminant(p: BProc, e: PNode) =
   var a, tmp: TLoc
   var dotExpr = e.sons[0]
-  var d: PSym
   if dotExpr.kind == nkCheckedFieldExpr: dotExpr = dotExpr.sons[0]
   initLocExpr(p, e.sons[0], a)
   getTemp(p, a.t, tmp)
diff --git a/compiler/ccgtypes.nim b/compiler/ccgtypes.nim
index 3d1c2affc..e30395d2e 100644
--- a/compiler/ccgtypes.nim
+++ b/compiler/ccgtypes.nim
@@ -744,14 +744,6 @@ proc getClosureType(m: BModule, t: PType, kind: TClosureTypeKind): Rope =
           "void* ClEnv;$n} $1;$n",
            [result, rettype, desc])
 
-proc getTypeDesc(m: BModule, magic: string): Rope =
-  var sym = magicsys.getCompilerProc(magic)
-  if sym != nil:
-    result = getTypeDesc(m, sym.typ)
-  else:
-    rawMessage(errSystemNeeds, magic)
-    result = nil
-
 proc finishTypeDescriptions(m: BModule) =
   var i = 0
   while i < len(m.typeStack):
@@ -1000,9 +992,6 @@ proc fakeClosureType(owner: PSym): PType =
 type
   TTypeInfoReason = enum  ## for what do we need the type info?
     tiNew,                ## for 'new'
-    tiNewSeq,             ## for 'newSeq'
-    tiNonVariantAsgn,     ## for generic assignment without variants
-    tiVariantAsgn         ## for generic assignment with variants
 
 include ccgtrav
 
diff --git a/compiler/cgen.nim b/compiler/cgen.nim
index 878ee1cd8..b68bf64bb 100644
--- a/compiler/cgen.nim
+++ b/compiler/cgen.nim
@@ -167,10 +167,6 @@ proc linefmt(p: BProc, s: TCProcSection, frmt: FormatStr,
              args: varargs[Rope]) =
   add(p.s(s), indentLine(p, ropecg(p.module, frmt, args)))
 
-proc appLineCg(p: BProc, r: var Rope, frmt: FormatStr,
-               args: varargs[Rope]) =
-  add(r, indentLine(p, ropecg(p.module, frmt, args)))
-
 proc safeLineNm(info: TLineInfo): int =
   result = toLinenumber(info)
   if result < 0: result = 0 # negative numbers are not allowed in #line
@@ -259,8 +255,7 @@ proc genObjectInit(p: BProc, section: TCProcSection, t: PType, a: TLoc,
 
 type
   TAssignmentFlag = enum
-    needToCopy, needForSubtypeCheck, afDestIsNil, afDestIsNotNil, afSrcIsNil,
-    afSrcIsNotNil
+    needToCopy, afDestIsNil, afDestIsNotNil, afSrcIsNil, afSrcIsNotNil
   TAssignmentFlags = set[TAssignmentFlag]
 
 proc genRefAssign(p: BProc, dest, src: TLoc, flags: TAssignmentFlags)
@@ -595,9 +590,6 @@ proc generateHeaders(m: BModule) =
       addf(m.s[cfsHeaders], "#include $1$N", [rope(it.data)])
     it = PStrEntry(it.next)
 
-proc retIsNotVoid(s: PSym): bool =
-  result = (s.typ.sons[0] != nil) and not isInvalidReturnType(s.typ.sons[0])
-
 proc initFrame(p: BProc, procname, filename: Rope): Rope =
   discard cgsym(p.module, "nimFrame")
   if p.maxFrameLen > 0:
diff --git a/compiler/extccomp.nim b/compiler/extccomp.nim
index 2dcfc0226..6f8b0b197 100644
--- a/compiler/extccomp.nim
+++ b/compiler/extccomp.nim
@@ -505,10 +505,6 @@ proc noAbsolutePaths: bool {.inline.} =
   # `optGenMapping` is included here for niminst.
   result = gGlobalOptions * {optGenScript, optGenMapping} != {}
 
-const
-  specialFileA = 42
-  specialFileB = 42
-
 var fileCounter: int
 
 proc add(s: var string, many: openArray[string]) =
diff --git a/compiler/idgen.nim b/compiler/idgen.nim
index 333772705..c6b1a4d07 100644
--- a/compiler/idgen.nim
+++ b/compiler/idgen.nim
@@ -54,6 +54,6 @@ proc loadMaxIds*(project: string) =
     if f.readLine(line):
       var frontEndId = parseInt(line)
       if f.readLine(line):
-        var backEndId = parseInt(line)
+        # var backEndId = parseInt(line)
         gFrontEndId = max(gFrontEndId, frontEndId)
     f.close()
diff --git a/compiler/lexer.nim b/compiler/lexer.nim
index 0eee5004e..9c513034b 100644
--- a/compiler/lexer.nim
+++ b/compiler/lexer.nim
@@ -211,9 +211,6 @@ proc closeLexer*(lex: var TLexer) =
   inc(gLinesCompiled, lex.lineNumber)
   closeBaseLexer(lex)
 
-proc getColumn(L: TLexer): int =
-  result = getColNumber(L, L.bufpos)
-
 proc getLineInfo(L: TLexer): TLineInfo =
   result = newLineInfo(L.fileIdx, L.lineNumber, getColNumber(L, L.bufpos))
 
@@ -237,12 +234,6 @@ proc lexMessagePos(L: var TLexer, msg: TMsgKind, pos: int, arg = "") =
 proc matchTwoChars(L: TLexer, first: char, second: set[char]): bool =
   result = (L.buf[L.bufpos] == first) and (L.buf[L.bufpos + 1] in second)
 
-proc isFloatLiteral(s: string): bool =
-  for i in countup(0, len(s) - 1):
-    if s[i] in {'.', 'e', 'E'}:
-      return true
-  result = false
-
 {.push overflowChecks: off.}
 # We need to parse the largest uint literal without overflow checks
 proc unsafeParseUInt(s: string, b: var BiggestInt, start = 0): int =
diff --git a/compiler/modules.nim b/compiler/modules.nim
index 9120bd1b6..aa12325f4 100644
--- a/compiler/modules.nim
+++ b/compiler/modules.nim
@@ -38,9 +38,6 @@ proc getModule*(fileIdx: int32): PSym =
   if fileIdx >= 0 and fileIdx < gCompiledModules.len:
     result = gCompiledModules[fileIdx]
 
-template hash(x: PSym): untyped =
-  gMemCacheData[x.position].hash
-
 proc hashChanged(fileIdx: int32): bool =
   internalAssert fileIdx >= 0 and fileIdx < gMemCacheData.len
 
@@ -220,12 +217,6 @@ proc includeModule*(s: PSym, fileIdx: int32): PNode {.procvar.} =
     addDep(s, fileIdx)
     doHash(fileIdx)
 
-proc `==^`(a, b: string): bool =
-  try:
-    result = sameFile(a, b)
-  except OSError:
-    result = false
-
 proc compileSystemModule* =
   if magicsys.systemModule == nil:
     systemFileIdx = fileInfoIdx(options.libpath/"system.nim")
diff --git a/compiler/msgs.nim b/compiler/msgs.nim
index 4a9980066..a926f0f49 100644
--- a/compiler/msgs.nim
+++ b/compiler/msgs.nim
@@ -660,8 +660,6 @@ const
   WarningColor = fgYellow
   HintTitle    = "Hint: "
   HintColor    = fgGreen
-  InfoTitle    = "Info: "
-  InfoColor    = fgCyan
 
 proc getInfoContextLen*(): int = return msgContext.len
 proc setInfoContextLen*(L: int) = setLen(msgContext, L)
diff --git a/compiler/nimblecmd.nim b/compiler/nimblecmd.nim
index c6c2ab058..9c5c17287 100644
--- a/compiler/nimblecmd.nim
+++ b/compiler/nimblecmd.nim
@@ -63,18 +63,6 @@ proc addNimblePath(p: string, info: TLineInfo) =
     message(info, hintPath, p)
     lists.prependStr(options.lazyPaths, p)
 
-proc addPathWithNimFiles(p: string, info: TLineInfo) =
-  proc hasNimFile(dir: string): bool =
-    for kind, path in walkDir(dir):
-      if kind == pcFile and path.endsWith(".nim"):
-        result = true
-        break
-  if hasNimFile(p):
-    addNimblePath(p, info)
-  else:
-    for kind, p2 in walkDir(p):
-      if hasNimFile(p2): addNimblePath(p2, info)
-
 proc addPathRec(dir: string, info: TLineInfo) =
   var packages = newStringTable(modeStyleInsensitive)
   var pos = dir.len-1
diff --git a/compiler/parser.nim b/compiler/parser.nim
index 19ef0960a..40862eb63 100644
--- a/compiler/parser.nim
+++ b/compiler/parser.nim
@@ -340,26 +340,6 @@ proc parseSymbol(p: var TParser, allowNil = false): PNode =
       if not isKeyword(p.tok.tokType): getTok(p)
       result = ast.emptyNode
 
-proc indexExpr(p: var TParser): PNode =
-  #| indexExpr = expr
-  result = parseExpr(p)
-
-proc indexExprList(p: var TParser, first: PNode, k: TNodeKind,
-                   endToken: TTokType): PNode =
-  #| indexExprList = indexExpr ^+ comma
-  result = newNodeP(k, p)
-  addSon(result, first)
-  getTok(p)
-  optInd(p, result)
-  while p.tok.tokType notin {endToken, tkEof}:
-    var a = indexExpr(p)
-    addSon(result, a)
-    if p.tok.tokType != tkComma: break
-    getTok(p)
-    skipComment(p, a)
-  optPar(p)
-  eat(p, endToken)
-
 proc colonOrEquals(p: var TParser, a: PNode): PNode =
   if p.tok.tokType == tkColon:
     result = newNodeP(nkExprColonExpr, p)
diff --git a/compiler/renderer.nim b/compiler/renderer.nim
index 0e733d643..a116a8afe 100644
--- a/compiler/renderer.nim
+++ b/compiler/renderer.nim
@@ -146,12 +146,6 @@ proc put(g: var TSrcGen, kind: TTokType, s: string) =
   else:
     g.pendingWhitespace = s.len
 
-proc putLong(g: var TSrcGen, kind: TTokType, s: string, lineLen: int) =
-  # use this for tokens over multiple lines.
-  addPendingNL(g)
-  addTok(g, kind, s)
-  g.lineLen = lineLen
-
 proc toNimChar(c: char): string =
   case c
   of '\0': result = "\\0"
@@ -264,9 +258,6 @@ proc pushCom(g: var TSrcGen, n: PNode) =
 proc popAllComs(g: var TSrcGen) =
   setLen(g.comStack, 0)
 
-proc popCom(g: var TSrcGen) =
-  setLen(g.comStack, len(g.comStack) - 1)
-
 const
   Space = " "
 
@@ -492,7 +483,7 @@ proc fits(g: TSrcGen, x: int): bool =
 
 type
   TSubFlag = enum
-    rfLongMode, rfNoIndent, rfInConstExpr
+    rfLongMode, rfInConstExpr
   TSubFlags = set[TSubFlag]
   TContext = tuple[spacing: int, flags: TSubFlags]
 
@@ -675,16 +666,6 @@ proc gfor(g: var TSrcGen, n: PNode) =
   gcoms(g)
   gstmts(g, n.sons[length - 1], c)
 
-proc gmacro(g: var TSrcGen, n: PNode) =
-  var c: TContext
-  initContext(c)
-  gsub(g, n.sons[0])
-  putWithSpace(g, tkColon, ":")
-  if longMode(n) or (lsub(n.sons[1]) + g.lineLen > MaxLineLen):
-    incl(c.flags, rfLongMode)
-  gcoms(g)
-  gsons(g, n, c, 1)
-
 proc gcase(g: var TSrcGen, n: PNode) =
   var c: TContext
   initContext(c)
diff --git a/compiler/sem.nim b/compiler/sem.nim
index 7db4ae47e..ccbd665e9 100644
--- a/compiler/sem.nim
+++ b/compiler/sem.nim
@@ -39,7 +39,6 @@ proc semStmt(c: PContext, n: PNode): PNode
 proc semParamList(c: PContext, n, genericParams: PNode, s: PSym)
 proc addParams(c: PContext, n: PNode, kind: TSymKind)
 proc maybeAddResult(c: PContext, s: PSym, n: PNode)
-proc instGenericContainer(c: PContext, n: PNode, header: PType): PType
 proc tryExpr(c: PContext, n: PNode, flags: TExprFlags = {}): PNode
 proc activate(c: PContext, n: PNode)
 proc semQuoteAst(c: PContext, n: PNode): PNode
@@ -187,7 +186,6 @@ proc semIdentVis(c: PContext, kind: TSymKind, n: PNode,
   # identifier with visibility
 proc semIdentWithPragma(c: PContext, kind: TSymKind, n: PNode,
                         allowed: TSymFlags): PSym
-proc semStmtScope(c: PContext, n: PNode): PNode
 
 proc typeAllowedCheck(info: TLineInfo; typ: PType; kind: TSymKind) =
   let t = typeAllowed(typ, kind)
diff --git a/compiler/semexprs.nim b/compiler/semexprs.nim
index fc31829ba..99bfa9b51 100644
--- a/compiler/semexprs.nim
+++ b/compiler/semexprs.nim
@@ -414,8 +414,6 @@ proc arrayConstrType(c: PContext, n: PNode): PType =
   if sonsLen(n) == 0:
     rawAddSon(typ, newTypeS(tyEmpty, c)) # needs an empty basetype!
   else:
-    var x = n.sons[0]
-    var lastIndex: BiggestInt = sonsLen(n) - 1
     var t = skipTypes(n.sons[0].typ, {tyGenericInst, tyVar, tyOrdinal})
     addSonSkipIntLit(typ, t)
   typ.sons[0] = makeRangeType(c, 0, sonsLen(n) - 1, n.info)
@@ -512,16 +510,6 @@ proc fixAbstractType(c: PContext, n: PNode) =
         #if (it.typ == nil):
         #  InternalError(it.info, "fixAbstractType: " & renderTree(it))
 
-proc skipObjConv(n: PNode): PNode =
-  case n.kind
-  of nkHiddenStdConv, nkHiddenSubConv, nkConv:
-    if skipTypes(n.sons[1].typ, abstractPtrs).kind in {tyTuple, tyObject}:
-      result = n.sons[1]
-    else:
-      result = n
-  of nkObjUpConv, nkObjDownConv: result = n.sons[0]
-  else: result = n
-
 proc isAssignable(c: PContext, n: PNode; isUnsafeAddr=false): TAssignableResult =
   result = parampatterns.isAssignable(c.p.owner, n, isUnsafeAddr)
 
diff --git a/compiler/semfold.nim b/compiler/semfold.nim
index 02f238ae6..1cb726053 100644
--- a/compiler/semfold.nim
+++ b/compiler/semfold.nim
@@ -458,32 +458,6 @@ proc getConstIfExpr(c: PSym, n: PNode): PNode =
       if result == nil: result = getConstExpr(c, it.sons[0])
     else: internalError(it.info, "getConstIfExpr()")
 
-proc partialAndExpr(c: PSym, n: PNode): PNode =
-  # partial evaluation
-  result = n
-  var a = getConstExpr(c, n.sons[1])
-  var b = getConstExpr(c, n.sons[2])
-  if a != nil:
-    if getInt(a) == 0: result = a
-    elif b != nil: result = b
-    else: result = n.sons[2]
-  elif b != nil:
-    if getInt(b) == 0: result = b
-    else: result = n.sons[1]
-
-proc partialOrExpr(c: PSym, n: PNode): PNode =
-  # partial evaluation
-  result = n
-  var a = getConstExpr(c, n.sons[1])
-  var b = getConstExpr(c, n.sons[2])
-  if a != nil:
-    if getInt(a) != 0: result = a
-    elif b != nil: result = b
-    else: result = n.sons[2]
-  elif b != nil:
-    if getInt(b) != 0: result = b
-    else: result = n.sons[1]
-
 proc leValueConv(a, b: PNode): bool =
   result = false
   case a.kind
diff --git a/compiler/seminst.nim b/compiler/seminst.nim
index 460db4f7c..959908564 100644
--- a/compiler/seminst.nim
+++ b/compiler/seminst.nim
@@ -97,22 +97,6 @@ proc genericCacheGet(genericSym: PSym, entry: TInstantiation;
       if inst.compilesId == id and sameInstantiation(entry, inst[]):
         return inst.sym
 
-proc removeDefaultParamValues(n: PNode) =
-  # we remove default params, because they cannot be instantiated properly
-  # and they are not needed anyway for instantiation (each param is already
-  # provided).
-  when false:
-    for i in countup(1, sonsLen(n)-1):
-      var a = n.sons[i]
-      if a.kind != nkIdentDefs: IllFormedAst(a)
-      var L = a.len
-      if a.sons[L-1].kind != nkEmpty and a.sons[L-2].kind != nkEmpty:
-        # ``param: typ = defaultVal``.
-        # We don't need defaultVal for semantic checking and it's wrong for
-        # ``cmp: proc (a, b: T): int = cmp``. Hm, for ``cmp = cmp`` that is
-        # not possible... XXX We don't solve this issue here.
-        a.sons[L-1] = ast.emptyNode
-
 proc freshGenSyms(n: PNode, owner, orig: PSym, symMap: var TIdTable) =
   # we need to create a fresh set of gensym'ed symbols:
   if n.kind == nkSym and sfGenSym in n.sym.flags and n.sym.owner == orig:
@@ -128,17 +112,6 @@ proc freshGenSyms(n: PNode, owner, orig: PSym, symMap: var TIdTable) =
 
 proc addParamOrResult(c: PContext, param: PSym, kind: TSymKind)
 
-proc addProcDecls(c: PContext, fn: PSym) =
-  # get the proc itself in scope (e.g. for recursion)
-  addDecl(c, fn)
-
-  for i in 1 .. <fn.typ.n.len:
-    var param = fn.typ.n.sons[i].sym
-    param.owner = fn
-    addParamOrResult(c, param, fn.kind)
-
-  maybeAddResult(c, fn, fn.ast)
-
 proc instantiateBody(c: PContext, n, params: PNode, result, orig: PSym) =
   if n.sons[bodyPos].kind != nkEmpty:
     inc c.inGenericInst
@@ -187,9 +160,6 @@ proc instGenericContainer(c: PContext, info: TLineInfo, header: PType,
   cl.allowMetaTypes = allowMetaTypes
   result = replaceTypeVarsT(cl, header)
 
-proc instGenericContainer(c: PContext, n: PNode, header: PType): PType =
-  result = instGenericContainer(c, n.info, header)
-
 proc instantiateProcType(c: PContext, pt: TIdTable,
                           prc: PSym, info: TLineInfo) =
   # XXX: Instantiates a generic proc signature, while at the same
diff --git a/compiler/semmagic.nim b/compiler/semmagic.nim
index d9fec6275..629c1b939 100644
--- a/compiler/semmagic.nim
+++ b/compiler/semmagic.nim
@@ -147,13 +147,6 @@ proc isStrangeArray(t: PType): bool =
   let t = t.skipTypes(abstractInst)
   result = t.kind == tyArray and t.firstOrd != 0
 
-proc isNegative(n: PNode): bool =
-  let n = n.skipConv
-  if n.kind in {nkCharLit..nkUInt64Lit}:
-    result = n.intVal < 0
-  elif n.kind in nkCallKinds and n.sons[0].kind == nkSym:
-    result = n.sons[0].sym.magic in {mUnaryMinusI, mUnaryMinusI64}
-
 proc magicsAfterOverloadResolution(c: PContext, n: PNode,
                                    flags: TExprFlags): PNode =
   case n[0].sym.magic
diff --git a/compiler/sempass2.nim b/compiler/sempass2.nim
index 120c4c774..72f289e4e 100644
--- a/compiler/sempass2.nim
+++ b/compiler/sempass2.nim
@@ -268,10 +268,6 @@ proc createTag(n: PNode): PNode =
     result.typ = sysTypeFromName"TEffect"
   if not n.isNil: result.info = n.info
 
-proc createAnyGlobal(n: PNode): PNode =
-  result = newSymNode(anyGlobal)
-  result.info = n.info
-
 proc addEffect(a: PEffects, e: PNode, useLineInfo=true) =
   assert e.kind != nkRaiseStmt
   var aa = a.exc
@@ -793,9 +789,6 @@ proc track(tracked: PEffects, n: PNode) =
 proc subtypeRelation(spec, real: PNode): bool =
   result = safeInheritanceDiff(real.excType, spec.typ) <= 0
 
-proc symbolPredicate(spec, real: PNode): bool =
-  result = real.sym.id == spec.sym.id
-
 proc checkRaisesSpec(spec, real: PNode, msg: string, hints: bool;
                      effectPredicate: proc (a, b: PNode): bool {.nimcall.}) =
   # check that any real exception is listed in 'spec'; mark those as used;
diff --git a/compiler/semstmts.nim b/compiler/semstmts.nim
index 5d1770a32..c1f06a5c6 100644
--- a/compiler/semstmts.nim
+++ b/compiler/semstmts.nim
@@ -1135,11 +1135,6 @@ type
   TProcCompilationSteps = enum
     stepRegisterSymbol,
     stepDetermineType,
-    stepCompileBody
-
-proc isForwardDecl(s: PSym): bool =
-  internalAssert s.kind == skProc
-  result = s.ast[bodyPos].kind != nkEmpty
 
 proc semProcAux(c: PContext, n: PNode, kind: TSymKind,
                 validPragmas: TSpecialWords,
@@ -1177,8 +1172,6 @@ proc semProcAux(c: PContext, n: PNode, kind: TSymKind,
     s.ast = n
     #s.scope = c.currentScope
 
-    # if typeIsDetermined: assert phase == stepCompileBody
-    # else: assert phase == stepDetermineType
   # before compiling the proc body, set as current the scope
   # where the proc was declared
   let oldScope = c.currentScope
@@ -1560,8 +1553,3 @@ proc semStmtList(c: PContext, n: PNode, flags: TExprFlags): PNode =
 proc semStmt(c: PContext, n: PNode): PNode =
   # now: simply an alias:
   result = semExprNoType(c, n)
-
-proc semStmtScope(c: PContext, n: PNode): PNode =
-  openScope(c)
-  result = semStmt(c, n)
-  closeScope(c)
diff --git a/compiler/semtempl.nim b/compiler/semtempl.nim
index 20b5071ac..dfe3ded0d 100644
--- a/compiler/semtempl.nim
+++ b/compiler/semtempl.nim
@@ -287,35 +287,6 @@ proc semTemplBodySons(c: var TemplCtx, n: PNode): PNode =
   for i in 0.. < n.len:
     result.sons[i] = semTemplBody(c, n.sons[i])
 
-proc wrapInBind(c: var TemplCtx; n: PNode; opr: string): PNode =
-  let ident = getIdent(opr)
-  if ident.id in c.toInject: return n
-
-  let s = searchInScopes(c.c, ident)
-  if s != nil:
-    var callee: PNode
-    if contains(c.toBind, s.id):
-      callee = symChoice(c.c, n, s, scClosed)
-    elif contains(c.toMixin, s.name.id):
-      callee = symChoice(c.c, n, s, scForceOpen)
-    elif s.owner == c.owner and sfGenSym in s.flags:
-      # template tmp[T](x: var seq[T]) =
-      # var yz: T
-      incl(s.flags, sfUsed)
-      callee = newSymNode(s, n.info)
-      styleCheckUse(n.info, s)
-    else:
-      callee = semTemplSymbol(c.c, n, s)
-
-    let call = newNodeI(nkCall, n.info)
-    call.add(callee)
-    for i in 0 .. n.len-1: call.add(n[i])
-    result = newNodeI(nkBind, n.info, 2)
-    result.sons[0] = n
-    result.sons[1] = call
-  else:
-    result = n
-
 proc oprIsRoof(n: PNode): bool =
   const roof = "^"
   case n.kind
diff --git a/compiler/transf.nim b/compiler/transf.nim
index d64276cfb..92e2234fd 100644
--- a/compiler/transf.nim
+++ b/compiler/transf.nim
@@ -584,13 +584,6 @@ proc transformFor(c: PTransf, n: PNode): PTransNode =
   popTransCon(c)
   # echo "transformed: ", stmtList.PNode.renderTree
 
-proc getMagicOp(call: PNode): TMagic =
-  if call.sons[0].kind == nkSym and
-      call.sons[0].sym.kind in {skProc, skMethod, skConverter}:
-    result = call.sons[0].sym.magic
-  else:
-    result = mNone
-
 proc transformCase(c: PTransf, n: PNode): PTransNode =
   # removes `elif` branches of a case stmt
   # adds ``else: nil`` if needed for the code generator
diff --git a/compiler/types.nim b/compiler/types.nim
index c56382b89..79d834f26 100644
--- a/compiler/types.nim
+++ b/compiler/types.nim
@@ -142,10 +142,6 @@ proc elemType*(t: PType): PType =
   else: result = t.lastSon
   assert(result != nil)
 
-proc skipGeneric(t: PType): PType =
-  result = t
-  while result.kind == tyGenericInst: result = lastSon(result)
-
 proc isOrdinalType(t: PType): bool =
   assert(t != nil)
   # caution: uint, uint64 are no ordinal types!
@@ -573,10 +569,6 @@ proc typeToString(typ: PType, prefer: TPreferedDesc = preferName): string =
     result = typeToStr[t.kind]
   result.addTypeFlags(t)
 
-proc resultType(t: PType): PType =
-  assert(t.kind == tyProc)
-  result = t.sons[0]          # nil is allowed
-
 proc base(t: PType): PType =
   result = t.sons[0]
 
@@ -767,18 +759,6 @@ proc equalParams(a, b: PNode): TParamsEquality =
         result = paramsIncompatible # overloading by different
                                     # result types does not work
 
-proc sameLiteral(x, y: PNode): bool =
-  if x.kind == y.kind:
-    case x.kind
-    of nkCharLit..nkInt64Lit: result = x.intVal == y.intVal
-    of nkFloatLit..nkFloat64Lit: result = x.floatVal == y.floatVal
-    of nkNilLit: result = true
-    else: assert(false)
-
-proc sameRanges(a, b: PNode): bool =
-  result = sameLiteral(a.sons[0], b.sons[0]) and
-           sameLiteral(a.sons[1], b.sons[1])
-
 proc sameTuple(a, b: PType, c: var TSameTypeClosure): bool =
   # two tuples are equivalent iff the names, types and positions are the same;
   # however, both types may not have any field names (t.n may be nil) which
diff --git a/compiler/vmdeps.nim b/compiler/vmdeps.nim
index 7dbf6f801..b40ca1058 100644
--- a/compiler/vmdeps.nim
+++ b/compiler/vmdeps.nim
@@ -109,10 +109,6 @@ proc mapTypeToAstX(t: PType; info: TLineInfo;
     mapTypeToBracketX(name, m, t, info, inst)
   template newNodeX(kind): untyped =
     newNodeIT(kind, if t.n.isNil: info else: t.n.info, t)
-  template newIdent(s): untyped =
-    var r = newNodeX(nkIdent)
-    r.add !s
-    r
   template newIdentDefs(n,t): untyped =
     var id = newNodeX(nkIdentDefs)
     id.add n  # name
diff --git a/compiler/vmgen.nim b/compiler/vmgen.nim
index 61ab65360..3fc3f7556 100644
--- a/compiler/vmgen.nim
+++ b/compiler/vmgen.nim
@@ -1127,14 +1127,6 @@ proc fitsRegister*(t: PType): bool =
   t.skipTypes(abstractInst-{tyTypeDesc}).kind in {
     tyRange, tyEnum, tyBool, tyInt..tyUInt64, tyChar}
 
-proc requiresCopy(n: PNode): bool =
-  if n.typ.skipTypes(abstractInst-{tyTypeDesc}).kind in atomicTypes:
-    result = false
-  elif n.kind in ({nkCurly, nkBracket, nkPar, nkObjConstr}+nkCallKinds):
-    result = false
-  else:
-    result = true
-
 proc unneededIndirection(n: PNode): bool =
   n.typ.skipTypes(abstractInst-{tyTypeDesc}).kind == tyRef
 
@@ -1215,8 +1207,6 @@ proc whichAsgnOpc(n: PNode): TOpcode =
   else:
     opcAsgnComplex
 
-proc isRef(t: PType): bool = t.skipTypes(abstractRange-{tyTypeDesc}).kind == tyRef
-
 proc whichAsgnOpc(n: PNode; opc: TOpcode): TOpcode = opc
 
 proc genAsgn(c: PCtx; dest: TDest; ri: PNode; requiresCopy: bool) =
@@ -1268,9 +1258,6 @@ proc isTemp(c: PCtx; dest: TDest): bool =
 template needsAdditionalCopy(n): untyped =
   not c.isTemp(dest) and not fitsRegister(n.typ)
 
-proc skipDeref(n: PNode): PNode =
-  result = if n.kind in {nkDerefExpr, nkHiddenDeref}: n.sons[0] else: n
-
 proc preventFalseAlias(c: PCtx; n: PNode; opc: TOpcode;
                        dest, idx, value: TRegister) =
   # opcLdObj et al really means "load address". We sometimes have to create a
@@ -1848,7 +1835,6 @@ proc genParams(c: PCtx; params: PNode) =
   # res.sym.position is already 0
   c.prc.slots[0] = (inUse: true, kind: slotFixedVar)
   for i in 1.. <params.len:
-    let param = params.sons[i].sym
     c.prc.slots[i] = (inUse: true, kind: slotFixedLet)
   c.prc.maxSlots = max(params.len, 1)