return op2str2[e.Op]
		}
	case *ast.UnaryExpr:
		if int(e.Op) < len(op2str1) {
			return op2str1[e.Op]
		}
	}
	return ""
}

var op2str1 = [...]string{
	token.XOR: "bitwise complement",
}

// This is only used for operations that may cause overflow.
var op2str2 = [...]string{
	token.ADD: "addition",
	token.SUB: "subtraction",
	token.XOR: "bitwise XOR",
	token.MUL: "multiplication",

				return op2str1[op]
			}
		} else {
			if op < len(op2str2) {
				return op2str2[op]
			}
		}
	}
	return ""
}

var op2str1 = [...]string{
	syntax.Xor: "bitwise complement",
}

// This is only used for operations that may cause overflow.
var op2str2 = [...]string{
	syntax.Add: "addition",
	syntax.Sub: "subtraction",
	syntax.Xor: "bitwise XOR",

   * element, in order to determine the element type. If the collection could be empty, use {@link
   * #complementOf(Collection, Class)} instead of this method.
   *
   * @param collection the collection whose complement should be stored in the enum set
   * @return a new, modifiable {@code EnumSet} containing all values of the enum that aren't present
   *     in the given collection

#else
# define GTEST_SNPRINTF_ snprintf
#endif

// The maximum number a BiggestInt can represent.  This definition
// works no matter BiggestInt is represented in one's complement or
// two's complement.
//
// We cannot rely on numeric_limits in STL, as __int64 and long long
// are not part of standard C++ and numeric_limits doesn't need to be
// defined for them.
const BiggestInt kMaxBiggestInt =

#else
# define GTEST_SNPRINTF_ snprintf
#endif

// The maximum number a BiggestInt can represent.  This definition
// works no matter BiggestInt is represented in one's complement or
// two's complement.
//
// We cannot rely on numeric_limits in STL, as __int64 and long long
// are not part of standard C++ and numeric_limits doesn't need to be
// defined for them.
const BiggestInt kMaxBiggestInt =

   * element, in order to determine the element type. If the collection could be empty, use {@link
   * #complementOf(Collection, Class)} instead of this method.
   *
   * @param collection the collection whose complement should be stored in the enum set
   * @return a new, modifiable {@code EnumSet} containing all values of the enum that aren't present
   *     in the given collection

	//
	// $readelf -h y.o
	// ELF Header:
	//   Magic:   7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
	//   Class:                             ELF32
	//   Data:                              2's complement, little endian
	//   Version:                           1 (current)
	//   OS/ABI:                            UNIX - System V
	//   ABI Version:                       0

				continue
			}

			tr, has := domainRelationTable[control.Op]
			if !has {
				continue
			}
			r := tr.r
			if br == negative {
				// Negative branch taken to reach b.
				// Complement the relations.
				r = (lt | eq | gt) ^ r
			}

			// Check for i2 < max or max > i2.
			var max *Value
			if r == lt && control.Args[0] == i2 {
				max = control.Args[1]

// for a pseudo-op like (LessThan x), extract x.
func flagArg(v *Value) *Value {
	if len(v.Args) != 1 || !v.Args[0].Type.IsFlags() {
		return nil
	}
	return v.Args[0]
}

// arm64Negate finds the complement to an ARM64 condition code,
// for example !Equal -> NotEqual or !LessThan -> GreaterEqual
//
// For floating point, it's more subtle because NaN is unordered. We do

	// mallocgc, and issue 54596).
	freeIndexForScan uint16

	// Cache of the allocBits at freeindex. allocCache is shifted
	// such that the lowest bit corresponds to the bit freeindex.
	// allocCache holds the complement of allocBits, thus allowing
	// ctz (count trailing zero) to use it directly.
	// allocCache may contain bits beyond s.nelems; the caller must ignore
	// these.
	allocCache uint64