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Sink to MemMove optimization in injectdestructors (#13002)

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cooldome 2020-01-02 21:58:01 +00:00 • committed by Andreas Rumpf
commit 002d50f1f0
4 changed files with 30 additions and 26 deletions
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10
compiler/lowerings.nim
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@ -42,6 +42,13 @@ proc addVar*(father, v: PNode) =
vpart[2] = vpart[1]
father.add vpart
proc addVar*(father, v, value: PNode) =
var vpart = newNodeI(nkIdentDefs, v.info, 3)
vpart[0] = v
vpart[1] = newNodeI(nkEmpty, v.info)
vpart[2] = value
father.add vpart
proc newAsgnStmt*(le, ri: PNode): PNode =
result = newNodeI(nkAsgn, le.info, 2)
result[0] = le
@ -63,10 +70,9 @@ proc lowerTupleUnpacking*(g: ModuleGraph; n: PNode; owner: PSym): PNode =
var v = newNodeI(nkVarSection, value.info)
let tempAsNode = newSymNode(temp)
v.addVar(tempAsNode)
v.addVar(tempAsNode, value)
result.add(v)
result.add newAsgnStmt(tempAsNode, value)
for i in 0..<n.len-2:
if n[i].kind == nkSym: v.addVar(n[i])
result.add newAsgnStmt(n[i], newTupleAccess(g, tempAsNode, i))