addF("math", "Trunc",
		func(s *state, n *ir.CallExpr, args []*ssa.Value) *ssa.Value {
			return s.newValue1(ssa.OpTrunc, types.Types[types.TFLOAT64], args[0])
		},
		sys.ARM64, sys.PPC64, sys.S390X, sys.Wasm)
	addF("math", "Ceil",
		func(s *state, n *ir.CallExpr, args []*ssa.Value) *ssa.Value {

		return true
	case OpSub8:
		v.Op = OpPPC64SUB
		return true
	case OpSubPtr:
		v.Op = OpPPC64SUB
		return true
	case OpTailCall:
		v.Op = OpPPC64CALLtail
		return true
	case OpTrunc:
		v.Op = OpPPC64FTRUNC
		return true
	case OpTrunc16to8:
		return rewriteValuePPC64_OpTrunc16to8(v)
	case OpTrunc32to16:
		return rewriteValuePPC64_OpTrunc32to16(v)
	case OpTrunc32to8:

	case OpSub8:
		v.Op = OpS390XSUBW
		return true
	case OpSubPtr:
		v.Op = OpS390XSUB
		return true
	case OpTailCall:
		v.Op = OpS390XCALLtail
		return true
	case OpTrunc:
		return rewriteValueS390X_OpTrunc(v)
	case OpTrunc16to8:
		v.Op = OpCopy
		return true
	case OpTrunc32to16:
		v.Op = OpCopy
		return true
	case OpTrunc32to8:
		v.Op = OpCopy
		return true