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fixes #20572 (#20585)

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* fixes #20572

* added a test case
This commit is contained in:
Andreas Rumpf 2022-10-17 23:48:51 +02:00 • committed by GitHub
commit 81087c949f
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25 changed files with 116 additions and 70 deletions
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4
compiler/cgen.nim
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@ -926,7 +926,7 @@ proc easyResultAsgn(n: PNode): PNode =
var i = 0
while i < n.len and n[i].kind in harmless: inc i
if i < n.len: result = easyResultAsgn(n[i])
of nkAsgn, nkFastAsgn:
of nkAsgn, nkFastAsgn, nkSinkAsgn:
if n[0].kind == nkSym and n[0].sym.kind == skResult and not containsResult(n[1]):
incl n.flags, nfPreventCg
return n[1]
@ -968,7 +968,7 @@ proc allPathsAsgnResult(n: PNode): InitResultEnum =
for it in n:
result = allPathsAsgnResult(it)
if result != Unknown: return result
of nkAsgn, nkFastAsgn:
of nkAsgn, nkFastAsgn, nkSinkAsgn:
if n[0].kind == nkSym and n[0].sym.kind == skResult:
if not containsResult(n[1]): result = InitSkippable
else: result = InitRequired