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fix #15463 (#15831)

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flywind 2020-11-05 21:00:08 +08:00 • committed by GitHub
commit a8af664e8b
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3 changed files with 13 additions and 2 deletions
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1
compiler/lowerings.nim
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@ -138,6 +138,7 @@ proc lowerSwap*(g: ModuleGraph; n: PNode; idgen: IdGenerator; owner: PSym): PNod
var temp = newSym(skVar, getIdent(g.cache, genPrefix), nextId(idgen), owner, n.info, owner.options)
temp.typ = n[1].typ
incl(temp.flags, sfFromGeneric)
incl(temp.flags, sfGenSym)
var v = newNodeI(nkVarSection, n.info)
let tempAsNode = newSymNode(temp)

2
compiler/vmgen.nim
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@ -1122,7 +1122,7 @@ proc genMagic(c: PCtx; n: PNode; dest: var TDest; m: TMagic) =
c.freeTemp(d)
of mSwap:
unused(c, n, dest)
c.gen(lowerSwap(c.graph, n, c.idgen, if c.prc == nil: c.module else: c.prc.sym))
c.gen(lowerSwap(c.graph, n, c.idgen, if c.prc == nil or c.prc.sym == nil: c.module else: c.prc.sym))
of mIsNil: genUnaryABC(c, n, dest, opcIsNil)
of mParseBiggestFloat:
if dest < 0: dest = c.getTemp(n.typ)