// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// The following shift tests are disabled in the shared
// testdata/check/shifts.go file because they don't work
// correctly with types2 at the moment. See go.dev/issue/52080.
// Make sure we keep testing them with go/types.
//
// TODO(gri) Once go.dev/issue/52080 is fixed, this file can be

			}
		}
	})
	return nil, nil
}

// checkLongShift checks if shift or shift-assign operations shift by more than
// the length of the underlying variable.
func checkLongShift(pass *analysis.Pass, node ast.Node, x, y ast.Expr) {
	if pass.TypesInfo.Types[x].Value != nil {
		// Ignore shifts of constants.
		// These are frequently used for bit-twiddling tricks

	_ = 1<<s == 1.  // ERROR "invalid|shift of type float64"
	_ = 1.<<s == 1  // ERROR "invalid|shift of type float64"
	_ = 1.<<s == 1. // ERROR "invalid|non-integer|shift of type float64"

	_ = 1<<s+1 == 1
	_ = 1<<s+1 == 1.   // ERROR "invalid|shift of type float64"
	_ = 1<<s+1. == 1   // ERROR "invalid|shift of type float64"
	_ = 1<<s+1. == 1.  // ERROR "invalid|shift of type float64"
	_ = 1.<<s+1 == 1   // ERROR "invalid|shift of type float64"

	return x<<7 ^ x2>>25 // arm64:"EXTRW\t[$]25,"
}

// check 32-bit shift masking
func mask32(x uint32) uint32 {
	return (x << 29) >> 29 // arm64:"AND\t[$]7, R[0-9]+",-"LSR",-"LSL"
}

// check 16-bit shift masking
func mask16(x uint16) uint16 {
	return (x << 14) >> 14 // arm64:"AND\t[$]3, R[0-9]+",-"LSR",-"LSL"
}

// check 8-bit shift masking
func mask8(x uint8) uint8 {

// Example from #52031.
//
// The following shifts should not produce errors on Go < 1.13, as their
// untyped constant operands are representable by type uint.
const (
	_ resultFlags = (1 << iota) / 2

	reportEqual
	reportUnequal
	reportByIgnore
	reportByMethod
	reportByFunc
	reportByCycle
)

// Invalid cases.
var x int = 1
var _ = (8 << x /* ERRORx `signed shift count .* requires go1.13 or later` */)

// license that can be found in the LICENSE file.

// Non-Go-constant but constant values aren't ok for shifts.

package p

import "unsafe"

func f() {
	_ = complex(1<<uintptr(unsafe.Pointer(nil)), 0) // ERROR "invalid operation: shifted operand 1 \(type float64\) must be integer|non-integer type for left operand of shift"

//go:noinline
func f(p int64, x, y int64) bool { return -x <= p && p <= y }

//go:noinline
func g(p int32, x, y int32) bool { return -x <= p && p <= y }

// There are some more complicated patterns involving compares and shifts, try to trigger those.

//go:noinline
func h(p int64, x, y int64) bool { return -(x<<1) <= p && p <= y }

//go:noinline
func k(p int32, x, y int32) bool { return -(1<<x) <= p && p <= y }

//go:noinline

	//        |-----|
	//        V     V
	//      0101101101001110
	//        ^            ^
	//        |------------|
	//           br.bits (num valid bits)
	//
	// The next line right shifts the desired bits into the
	// least-significant places and masks off anything above.
	n = (br.n >> (br.bits - bits)) & ((1 << bits) - 1)
	br.bits -= bits
	return
}

func (br *bitReader) ReadBits(bits uint) (n int) {

						fncCnst1.Execute(w, fd)
						fd.Number = number
					}

					fncCnst2.Execute(w, fd)
				}
			}

			// signed test cases
			if len(s.i) > 0 {
				// don't generate tests for shifts by signed integers
				if o.name == "lsh" || o.name == "rsh" {
					continue
				}
				for _, i := range s.i {
					fd.Number = fmt.Sprintf("%d", i)
					fd.FNumber = strings.Replace(fd.Number, "-", "Neg", -1)

	nilfunc          check for useless comparisons between functions and nil
	printf           check consistency of Printf format strings and arguments
	shift            check for shifts that equal or exceed the width of the integer
	sigchanyzer      check for unbuffered channel of os.Signal
	slog             check for invalid structured logging calls