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new move analyser2 (#20471)

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* produce better code for closure environment creation
* new 'first write' analysis; 
* scope based move analyser
* code cleanup

Co-authored-by: ringabout <43030857+ringabout@users.noreply.github.com>
This commit is contained in:
Andreas Rumpf 2022-10-01 16:46:51 +02:00 • committed by GitHub
commit 8d47bf1822
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19 changed files with 472 additions and 684 deletions
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8
tests/destructor/tbintree2.nim
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@ -21,21 +21,21 @@ proc merge(lower, greater: owned Node): owned Node =
elif greater.isNil:
result = lower
elif lower.y < greater.y:
lower.right = merge(lower.right, greater)
lower.right = merge(move lower.right, greater)
result = lower
else:
greater.left = merge(lower, greater.left)
greater.left = merge(lower, move greater.left)
result = greater
proc splitBinary(orig: owned Node, value: int32): (owned Node, owned Node) =
if orig.isNil:
result = (nil, nil)
elif orig.x < value:
let splitPair = splitBinary(orig.right, value)
let splitPair = splitBinary(move orig.right, value)
orig.right = splitPair[0]
result = (orig, splitPair[1])
else:
let splitPair = splitBinary(orig.left, value)
let splitPair = splitBinary(move orig.left, value)
orig.left = splitPair[1]
result = (splitPair[0], orig)