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Revert "ARC Analysis in one pass (#16849)" (#16984)

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This reverts commit ab740cb5b9.
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Clyybber 2021-02-09 15:50:52 +01:00 • committed by GitHub
commit 9edf719e1e
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7 changed files with 127 additions and 138 deletions
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4
compiler/ccgcalls.nim
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@ -298,11 +298,11 @@ proc genArgNoParam(p: BProc, n: PNode, needsTmp = false): Rope =
initLocExprSingleUse(p, n, a)
result = rdLoc(withTmpIfNeeded(p, a, needsTmp))
from dfa import aliases, AliasKind
from dfa import instrTargets, InstrTargetKind
proc potentialAlias(n: PNode, potentialWrites: seq[PNode]): bool =
for p in potentialWrites:
if p.aliases(n) != no or n.aliases(p) != no:
if instrTargets(p, n) != None:
return true
proc skipTrivialIndirections(n: PNode): PNode =