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

package codegen

import "math/bits"

// ------------------- //
//    const rotates    //
// ------------------- //

func rot64(x uint64) uint64 {
	var a uint64

	// amd64:"ROLQ\t[$]7"
	// ppc64x:"ROTL\t[$]7"
	// loong64: "ROTRV\t[$]57"
	// riscv64: "RORI\t[$]57"
	a += x<<7 | x>>57

	// amd64:"ROLQ\t[$]8"
	// arm64:"ROR\t[$]56"

		// never be 0x80
		if shifted == 0 && b == 0x80 {
			failed = true
			return
		}
		ret64 |= int64(b & 0x7f)
		offset++
		if b&0x80 == 0 {
			ret = int(ret64)
			// Ensure that the returned value fits in an int on all platforms
			if ret64 > math.MaxInt32 {
				failed = true
			}
			return
		}
	}
	failed = true
	return
}

			// standard 64-bit division.
			ret64 := tc.num / int64(tc.div)
			rem64 := tc.num % int64(tc.div)
			if ret64 != int64(int32(ret64)) {
				// Simulate timediv overflow value.
				ret64 = 1<<31 - 1
				rem64 = 0
			}
			if ret64 != int64(tc.ret) {
				t.Errorf("%d / %d got ret %d rem %d want ret %d rem %d", tc.num, tc.div, ret64, rem64, tc.ret, tc.rem)
			}

			var rem int32

func parseInt32(bytes []byte) (int32, error) {
	if err := checkInteger(bytes); err != nil {
		return 0, err
	}
	ret64, err := parseInt64(bytes)
	if err != nil {
		return 0, err
	}
	if ret64 != int64(int32(ret64)) {
		return 0, StructuralError{"integer too large"}
	}
	return int32(ret64), nil
}

var bigOne = big.NewInt(1)

// parseBigInt treats the given bytes as a big-endian, signed integer and returns

			}
		}

		x64 := uint64(m)
		got64 := RotateLeft64(x64, int(k))
		want64 := x64<<(k&0x3f) | x64>>(64-k&0x3f)
		if got64 != want64 {
			t.Fatalf("RotateLeft64(%#016x, %d) == %#016x; want %#016x", x64, k, got64, want64)
		}
		got64 = RotateLeft64(want64, -int(k))
		if got64 != x64 {
			t.Fatalf("RotateLeft64(%#016x, -%d) == %#016x; want %#016x", want64, k, got64, x64)
		}
		if UintSize == 64 {
			x := uint(m)

			got, err := ParseComplex(test.in, 64)
			if !reflect.DeepEqual(err, test.err) {
				t.Fatalf("ParseComplex(%q, 64) = %v, %v; want %v, %v", test.in, got, err, test.out, test.err)
			}
			got64 := complex64(got)
			if complex128(got64) != test.out {
				t.Fatalf("ParseComplex(%q, 64) = %v, %v; want %v, %v", test.in, got, err, test.out, test.err)
			}
		}
	}
}