// unary ops
		{name: "MVN", argLength: 1, reg: gp11, asm: "MVN"}, // ^arg0

		{name: "NEGF", argLength: 1, reg: fp11, asm: "NEGF"},   // -arg0, float32
		{name: "NEGD", argLength: 1, reg: fp11, asm: "NEGD"},   // -arg0, float64
		{name: "SQRTD", argLength: 1, reg: fp11, asm: "SQRTD"}, // sqrt(arg0), float64

(RSB (MUL x y) a) && buildcfg.GOARM.Version == 7 => (MULS x y a)

(NEGF (MULF x y)) && buildcfg.GOARM.Version >= 6 => (NMULF x y)
(NEGD (MULD x y)) && buildcfg.GOARM.Version >= 6 => (NMULD x y)
(MULF (NEGF x) y) && buildcfg.GOARM.Version >= 6 => (NMULF x y)
(MULD (NEGD x) y) && buildcfg.GOARM.Version >= 6 => (NMULD x y)
(NMULF (NEGF x) y) => (MULF x y)
(NMULD (NEGD x) y) => (MULD x y)

				c.ctxt.Diag("illegal combination: %v", p)
			default:
				r = rt
			}
		}

		o1 |= (uint32(rf)&15)<<0 | (uint32(r)&15)<<16 | (uint32(rt)&15)<<12

	case 55: /* negf freg, freg */
		o1 = c.oprrr(p, p.As, int(p.Scond))

		rf := int(p.From.Reg)
		rt := int(p.To.Reg)

		o1 |= (uint32(rf)&15)<<0 | (uint32(rt)&15)<<12

	case 56: /* move to FP[CS]R */

			v.AddArg2(x, y)
			return true
		}
		break
	}
	return false
}
func rewriteValueARM_OpARMMULF(v *Value) bool {
	v_1 := v.Args[1]
	v_0 := v.Args[0]
	// match: (MULF (NEGF x) y)
	// cond: buildcfg.GOARM.Version >= 6
	// result: (NMULF x y)
	for {
		for _i0 := 0; _i0 <= 1; _i0, v_0, v_1 = _i0+1, v_1, v_0 {
			if v_0.Op != OpARMNEGF {
				continue
			}

				{0, 22527}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 g R12 R14
			},
			outputs: []outputInfo{
				{0, 21503}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R12 R14
			},
		},
	},
	{
		name:   "NEGF",
		argLen: 1,
		asm:    arm.ANEGF,
		reg: regInfo{
			inputs: []inputInfo{
				{0, 4294901760}, // F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15
			},
			outputs: []outputInfo{