(NilCheck ...) => (LoweredNilCheck ...)
(IsNonNil ptr) => (NotEqual (CMPconst [0] ptr))
(IsInBounds      idx len) => (LessThanU  (CMP idx len))
(IsSliceInBounds idx len) => (LessEqualU (CMP idx len))

// pseudo-ops
(GetClosurePtr ...) => (LoweredGetClosurePtr ...)
(GetCallerSP   ...) => (LoweredGetCallerSP   ...)
(GetCallerPC   ...) => (LoweredGetCallerPC   ...)

// Absorb pseudo-ops into blocks.

(NilCheck ...) => (LoweredNilCheck ...)
(IsNonNil ptr) => (NotEqual (CMPconst [0] ptr))
(IsInBounds idx len) => (LessThanU (CMP idx len))
(IsSliceInBounds idx len) => (LessEqualU (CMP idx len))

// pseudo-ops
(GetClosurePtr ...) => (LoweredGetClosurePtr ...)
(GetCallerSP ...) => (LoweredGetCallerSP ...)
(GetCallerPC ...) => (LoweredGetCallerPC ...)

// Absorb pseudo-ops into blocks.
(If (Equal cc) yes no) => (EQ cc yes no)

(IsSliceInBounds idx len) => (SETBE (CMPQ idx len))
(NilCheck ...) => (LoweredNilCheck ...)
(GetG mem) && v.Block.Func.OwnAux.Fn.ABI() != obj.ABIInternal => (LoweredGetG mem) // only lower in old ABI. in new ABI we have a G register.
(GetClosurePtr ...) => (LoweredGetClosurePtr ...)
(GetCallerPC ...) => (LoweredGetCallerPC ...)
(GetCallerSP ...) => (LoweredGetCallerSP ...)

(HasCPUFeature {s}) => (SETNE (CMPLconst [0] (LoweredHasCPUFeature {s})))

			s.vars[memVar] = s.newValue2(ssa.OpKeepAlive, types.TypeMem, data, s.mem())
			return nil
		},
		all...)
	add("runtime", "getclosureptr",
		func(s *state, n *ir.CallExpr, args []*ssa.Value) *ssa.Value {
			return s.newValue0(ssa.OpGetClosurePtr, s.f.Config.Types.Uintptr)
		},
		all...)

	add("runtime", "getcallerpc",
		func(s *state, n *ir.CallExpr, args []*ssa.Value) *ssa.Value {

		v = v.Args[0]
	}
	switch v.Op {
	case OpSP, OpLocalAddr, OpSelectNAddr:
		// Stack addresses are always safe.
		return true
	case OpITab, OpStringPtr, OpGetClosurePtr:
		// Itabs, string data, and closure fields are
		// read-only once initialized.
		return true
	case OpAddr:
		vt := v.Aux.(*obj.LSym).Type

		argLen:   2,
		nilCheck: true,
		generic:  true,
	},
	{
		name:      "GetG",
		argLen:    1,
		zeroWidth: true,
		generic:   true,
	},
	{
		name:    "GetClosurePtr",
		argLen:  0,
		generic: true,
	},
	{
		name:    "GetCallerPC",
		argLen:  0,
		generic: true,
	},
	{
		name:    "GetCallerSP",
		argLen:  1,

	case OpFloor:
		v.Op = OpWasmF64Floor
		return true
	case OpGetCallerPC:
		v.Op = OpWasmLoweredGetCallerPC
		return true
	case OpGetCallerSP:
		v.Op = OpWasmLoweredGetCallerSP
		return true
	case OpGetClosurePtr:
		v.Op = OpWasmLoweredGetClosurePtr
		return true
	case OpInterCall:
		v.Op = OpWasmLoweredInterCall
		return true
	case OpIsInBounds:
		v.Op = OpWasmI64LtU
		return true
	case OpIsNonNil:

	case OpEqPtr:
		return rewriteValueMIPS_OpEqPtr(v)
	case OpGetCallerPC:
		v.Op = OpMIPSLoweredGetCallerPC
		return true
	case OpGetCallerSP:
		v.Op = OpMIPSLoweredGetCallerSP
		return true
	case OpGetClosurePtr:
		v.Op = OpMIPSLoweredGetClosurePtr
		return true
	case OpHmul32:
		return rewriteValueMIPS_OpHmul32(v)
	case OpHmul32u:
		return rewriteValueMIPS_OpHmul32u(v)
	case OpInterCall:

		return rewriteValueLOONG64_OpEqPtr(v)
	case OpGetCallerPC:
		v.Op = OpLOONG64LoweredGetCallerPC
		return true
	case OpGetCallerSP:
		v.Op = OpLOONG64LoweredGetCallerSP
		return true
	case OpGetClosurePtr:
		v.Op = OpLOONG64LoweredGetClosurePtr
		return true
	case OpHmul32:
		return rewriteValueLOONG64_OpHmul32(v)
	case OpHmul32u:
		return rewriteValueLOONG64_OpHmul32u(v)
	case OpHmul64:

	case OpEqPtr:
		return rewriteValueMIPS64_OpEqPtr(v)
	case OpGetCallerPC:
		v.Op = OpMIPS64LoweredGetCallerPC
		return true
	case OpGetCallerSP:
		v.Op = OpMIPS64LoweredGetCallerSP
		return true
	case OpGetClosurePtr:
		v.Op = OpMIPS64LoweredGetClosurePtr
		return true
	case OpHmul32:
		return rewriteValueMIPS64_OpHmul32(v)
	case OpHmul32u:
		return rewriteValueMIPS64_OpHmul32u(v)
	case OpHmul64: