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minor stuff

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This commit is contained in:
Arne Döring
2019-08-27 12:21:04 +02:00
parent a562de2d91
commit ab8241ad42
4 changed files with 8 additions and 14 deletions
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2
compiler/semtypes.nim
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@@ -223,7 +223,7 @@ proc semRangeAux(c: PContext, n: PNode, prev: PType): PType =
if not hasUnknownTypes:
if not sameType(rangeT[0].skipTypes({tyRange}), rangeT[1].skipTypes({tyRange})):
localError(c.config, n.info, "type mismatch")
elif not rangeT[0].isOrdinalType(allowUint=true) and rangeT[0].kind notin tyFloat..tyFloat128 or
elif not isOrdinalType(rangeT[0]) and rangeT[0].kind notin tyFloat..tyFloat128 or
rangeT[0].kind == tyBool:
localError(c.config, n.info, "ordinal or float type expected")
elif enumHasHoles(rangeT[0]):

2
compiler/transf.nim
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@@ -718,7 +718,7 @@ proc transformCase(c: PTransf, n: PNode): PTransNode =
result.add(elseBranch)
elif result.PNode.lastSon.kind != nkElse and not (
skipTypes(n.sons[0].typ, abstractVarRange).kind in
{tyInt..tyInt64, tyChar, tyEnum, tyUInt..tyUInt32}):
{tyInt..tyInt64, tyChar, tyEnum, tyUInt..tyUInt64}):
# fix a stupid code gen bug by normalizing:
var elseBranch = newTransNode(nkElse, n.info, 1)
elseBranch[0] = newTransNode(nkNilLit, n.info, 0)

4
compiler/types.nim
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@@ -158,9 +158,9 @@ proc enumHasHoles*(t: PType): bool =
proc isOrdinalType*(t: PType, allowEnumWithHoles: bool = false): bool =
assert(t != nil)
const
baseKinds = {tyChar,tyInt..tyUInt64,tyBool,tyEnum}
baseKinds = {tyChar,tyInt..tyInt64,tyUInt..tyUInt64,tyBool,tyEnum}
parentKinds = {tyRange, tyOrdinal, tyGenericInst, tyAlias, tySink, tyDistinct}
result = (t.kind in baseKinds and not (t.enumHasHoles and not allowEnumWithHoles)) or
result = (t.kind in baseKinds and (not t.enumHasHoles or allowEnumWithHoles)) or
(t.kind in parentKinds and isOrdinalType(t.lastSon, allowEnumWithHoles))
proc iterOverTypeAux(marker: var IntSet, t: PType, iter: TTypeIter,

14
compiler/vmgen.nim
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@@ -682,6 +682,7 @@ proc genUnaryABI(c: PCtx; n: PNode; dest: var TDest; opc: TOpcode; imm: BiggestI
c.gABI(n, opc, dest, tmp, imm)
c.freeTemp(tmp)
proc genBinaryABC(c: PCtx; n: PNode; dest: var TDest; opc: TOpcode) =
let
tmp = c.genx(n.sons[1])
@@ -999,22 +1000,15 @@ proc genMagic(c: PCtx; n: PNode; dest: var TDest; m: TMagic) =
of mMulF64: genBinaryABC(c, n, dest, opcMulFloat)
of mDivF64: genBinaryABC(c, n, dest, opcDivFloat)
of mShrI:
# the idea here is to narrow type if needed before executing right shift
# inlined modified: genNarrowU(c, n, dest)
let t = skipTypes(n.typ, abstractVar-{tyTypeDesc})
# uint is uint64 in the VM, we we only need to mask the result for
# other unsigned types:
# modified: genBinaryABC(c, n, dest, opcShrInt)
# narrowU is applied to the left operandthe idea here is to narrow the left operand
let tmp = c.genx(n.sons[1])
if t.kind in {tyUInt8..tyUInt32, tyInt8..tyInt32}:
c.gABC(n, opcNarrowU, tmp, TRegister(t.size*8))
# inlined modified: genBinaryABC(c, n, dest, opcShrInt)
c.genNarrowU(n, tmp)
let tmp2 = c.genx(n.sons[2])
if dest < 0: dest = c.getTemp(n.typ)
c.gABC(n, opcShrInt, dest, tmp, tmp2)
c.freeTemp(tmp)
c.freeTemp(tmp2)
of mShlI:
genBinaryABC(c, n, dest, opcShlInt)
# genNarrowU modified