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don't use a temp for addr [backport: 1.6] (#19503)

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* don't use a temp for addr

fix #19497

* Update compiler/ccgcalls.nim

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>

* add a test

Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>
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flywind 2022-02-08 15:34:44 +08:00 • committed by GitHub
commit 27e548140b
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2 changed files with 24 additions and 2 deletions
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compiler/ccgcalls.nim
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@ -376,8 +376,8 @@ proc genParams(p: BProc, ri: PNode, typ: PType): Rope =
if not needTmp[i - 1]:
needTmp[i - 1] = potentialAlias(n, potentialWrites)
getPotentialWrites(ri[i], false, potentialWrites)
if ri[i].kind == nkHiddenAddr:
# Optimization: don't use a temp, if we would only take the adress anyway
if ri[i].kind in {nkHiddenAddr, nkAddr}:
# Optimization: don't use a temp, if we would only take the address anyway
needTmp[i - 1] = false
for i in 1..<ri.len: