shithub: femtolisp

ref: 5e28ffc053ddf65898820550a7c7f1712bb10543
dir: /builtins_plan9_amd64.s/

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TEXT __builtin_clz(SB),1,$0
	BYTE $0x0F; BYTE $0xBD; BYTE $0xC5 /* BSRL RARG, AX */
	XORL $31, AX
	RET