How to use -Wno to suppress multiple warnings?

Dear ARM,

In AC5, we use --diag_suppress to suppress warnings. I learn in Arm Compiler armclang Reference Guide Version 6.12 that -Wno can do the same thing. But how shoulo I use -Wno to suppress multiple warnings?

In AC5, --diag_suppress=188,111,186,1 could work. I tried to use -Wno=188,111,186,1 and went wrong.

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