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fixes #23401; prevents nrvo for cdecl procs (#23409)

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fixes #23401
This commit is contained in:
ringabout
2024-03-16 13:23:15 +08:00
committed by GitHub
parent b387bc49b5
commit f639cf063f
1 changed files with 4 additions and 1 deletions
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5
compiler/ccgtypes.nim
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@@ -275,7 +275,10 @@ proc isInvalidReturnType(conf: ConfigRef; typ: PType, isProc = true): bool =
{tyVar, tyLent, tyRef, tyPtr})
of ctStruct:
let t = skipTypes(rettype, typedescInst)
if rettype.isImportedCppType or t.isImportedCppType: return false
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))
else: result = false