case "amd64.LEAQ":
		dst = 8
		addr = true
	default:
		switch fn.arch.name {
		case "386", "amd64":
			if strings.HasPrefix(op, "F") && (strings.HasSuffix(op, "D") || strings.HasSuffix(op, "DP")) {
				// FMOVDP, FXCHD, etc
				src = 8
				break
			}
			if strings.HasPrefix(op, "P") && strings.HasSuffix(op, "RD") {
				// PINSRD, PEXTRD, etc
				src = 4
				break
			}

	MOVL	AX, moduledata_next(DX)
	MOVL	AX, runtime·lastmoduledatap(SB)
	RET

TEXT runtime·uint32tofloat64(SB),NOSPLIT,$8-12
	MOVL	a+0(FP), AX
	MOVL	AX, 0(SP)
	MOVL	$0, 4(SP)
	FMOVV	0(SP), F0
	FMOVDP	F0, ret+4(FP)
	RET

TEXT runtime·float64touint32(SB),NOSPLIT,$12-12
	FMOVD	a+0(FP), F0
	FSTCW	0(SP)
	FLDCW	runtime·controlWord64trunc(SB)
	FMOVVP	F0, 4(SP)
	FLDCW	0(SP)
	MOVL	4(SP), AX