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Fix #17712 (#17873)

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Clyybber 2021-04-27 13:03:26 +02:00 • committed by GitHub
commit b03d6c9b2f
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2 changed files with 15 additions and 3 deletions
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5
compiler/dfa.nim
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@ -696,9 +696,10 @@ proc skipTrivials(c: var Con, n: PNode): PNode =
proc genUse(c: var Con; orig: PNode) = proc genUse(c: var Con; orig: PNode) =
let n = c.skipTrivials(orig) let n = c.skipTrivials(orig)
if n.kind == nkSym and n.sym.kind in InterestingSyms: if n.kind == nkSym:
if n.sym.kind in InterestingSyms:
c.code.add Instr(n: orig, kind: use) c.code.add Instr(n: orig, kind: use)
elif n.kind in nkCallKinds: else:
gen(c, n) gen(c, n)
proc genDef(c: var Con; orig: PNode) = proc genDef(c: var Con; orig: PNode) =

11
tests/arc/tarcmisc.nim
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@ -27,6 +27,7 @@ finalizer
aaaaa aaaaa
hello hello
ok ok
true
closed closed
destroying variable: 20 destroying variable: 20
destroying variable: 10 destroying variable: 10
@ -422,3 +423,13 @@ proc test3 =
static: test3() # was buggy static: test3() # was buggy
test3() test3()
# bug #17712
proc t17712 =
var ppv = new int
discard @[ppv]
var el: ref int
el = [ppv][0]
echo el != nil
t17712()