(FCMPD x (FMOVDconst [0])) => (FCMPD0 x)
(FCMPD (FMOVDconst [0]) x) => (InvertFlags (FCMPD0 x))

// CSEL needs a flag-generating argument. Synthesize a TSTW if necessary.
(CondSelect x y boolval) && flagArg(boolval) != nil => (CSEL [boolval.Op] x y flagArg(boolval))
(CondSelect x y boolval) && flagArg(boolval) == nil => (CSEL [OpARM64NotEqual] x y (TSTWconst [1] boolval))

(OffPtr [off] ptr:(SP)) && is32Bit(off) => (MOVDaddr [int32(off)] ptr)

		return rewriteValueLOONG64_OpCom16(v)
	case OpCom32:
		return rewriteValueLOONG64_OpCom32(v)
	case OpCom64:
		return rewriteValueLOONG64_OpCom64(v)
	case OpCom8:
		return rewriteValueLOONG64_OpCom8(v)
	case OpCondSelect:
		return rewriteValueLOONG64_OpCondSelect(v)
	case OpConst16:
		return rewriteValueLOONG64_OpConst16(v)
	case OpConst32:
		return rewriteValueLOONG64_OpConst32(v)
	case OpConst32F:

	case OpCom16:
		return rewriteValueWasm_OpCom16(v)
	case OpCom32:
		return rewriteValueWasm_OpCom32(v)
	case OpCom64:
		return rewriteValueWasm_OpCom64(v)
	case OpCom8:
		return rewriteValueWasm_OpCom8(v)
	case OpCondSelect:
		v.Op = OpWasmSelect
		return true
	case OpConst16:
		return rewriteValueWasm_OpConst16(v)
	case OpConst32:
		return rewriteValueWasm_OpConst32(v)
	case OpConst32F:
		v.Op = OpWasmF32Const
		return true