Always escape into SIB and use a displacement when a dynamic register is used as memory operand base. This ensures correct behavior when RSP/RBP/R12/R13 is used as dynamic base register, at the cost of emitting slightly larger code.
Always escape into SIB and use a displacement when a dynamic register is used as memory operand base. This ensures correct behavior when RSP/RBP/R12/R13 is used as dynamic base register, at the cost of emitting slightly larger code.

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