TEXT asmtest(SB),DUPOK|NOSPLIT,$0
	// Instructions that were encoded with BYTE sequences.
	// Included to simplify validation of CL that fixed that.
	MOVQ (AX), M0  // 0f6f00
	MOVQ M0, 8(SP) // 0f7f442408
	MOVQ 8(SP), M0 // 0f6f442408
	MOVQ M0, (AX)  // 0f7f00
	MOVQ M0, (BX)  // 0f7f03
	// On non-64bit arch, Go asm allowed uint32 offsets instead of int32.
	// These tests check that property for backwards-compatibility.

	CMPL runtime·writeBarrier(SB), $0
	MOVQ (R15), AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here"
	RET
TEXT ·a18(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0
	MOVQ (CX)(R15*1), AX // ERROR "when dynamic linking, R15 is clobbered by a global variable access and is used here"
	RET
TEXT ·a19(SB), 0, $0-0
	CMPL runtime·writeBarrier(SB), $0

	MOVQ (AX), CR3                  // ERROR "invalid instruction"
	MOVQ (AX), CR4                  // ERROR "invalid instruction"
	MOVQ (AX), CR8                  // ERROR "invalid instruction"
	MOVQ DR0, (AX)                  // ERROR "invalid instruction"
	MOVQ DR2, (AX)                  // ERROR "invalid instruction"
	MOVQ DR3, (AX)                  // ERROR "invalid instruction"