emitRetUT args = do
tickyUnboxedTupleReturn (length args) -- TICK
(sp, stmts) <- pushUnboxedTuple 0 args
- emitStmts stmts
+ emitSimultaneously stmts -- NB. the args might overlap with the stack slots
+ -- or regs that we assign to, so better use
+ -- simultaneous assignments here (#3546)
when (sp /= 0) $ stmtC (CmmAssign spReg (cmmRegOffW spReg (-sp)))
stmtC (CmmJump (entryCode (CmmLoad (cmmRegOffW spReg sp) bWord)) [])
-- TODO (when using CPS): emitStmt (CmmReturn (map snd args))