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nrvo for embedded importc'ed types (#23708)

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ringabout
2024-06-13 02:51:52 +08:00
committed by GitHub
parent 3770236bee
commit 0b5a938f57
1 changed files with 6 additions and 3 deletions
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9
compiler/ccgtypes.nim
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@@ -277,9 +277,12 @@ proc isInvalidReturnType(conf: ConfigRef; typ: PType, isProc = true): bool =
if rettype.isImportedCppType or t.isImportedCppType or
(typ.callConv == ccCDecl and conf.selectedGC in {gcArc, gcAtomicArc, gcOrc}):
# prevents nrvo for cdecl procs; # bug #23401
return false
result = containsGarbageCollectedRef(t) or
(t.kind == tyObject and not isObjLackingTypeField(t))
result = false
else:
result = containsGarbageCollectedRef(t) or
(t.kind == tyObject and not isObjLackingTypeField(t)) or
(getSize(conf, rettype) == szUnknownSize and (t.sym == nil or sfImportc notin t.sym.flags))
else: result = false
const