Class<T> enumClass) {
    synchronized (enumConstantCache) {
      Map<String, WeakReference<? extends Enum<?>>> constants = enumConstantCache.get(enumClass);
      if (constants == null) {
        constants = populateCache(enumClass);
      }
      return constants;
    }
  }

  /**
   * Returns a serializable converter that converts between strings and {@code enum} values of type

#include "tensorflow/compiler/mlir/lite/transforms/passes.h.inc"

// The threshold of constant bits to be unfolded (1Mb). If there is a splat
// constant with size equal or greater to this threshold, then it will be
// unfolded back to a regular `tfl.fill` operation.
constexpr int64_t kConstantSizeThresholdInBits = 1e+6;

// Pass which will replace large splat constant tensors to `tfl.Fill` op to
// reduce the size of the generated flatbuffer model size.

	VPMSUMD	V19,const1,V11	// vpmsumd with constants
	LVX	(R4+off48),V19	// load next from buffer
	OR	$0,R2,R2

	VPMSUMD	V20,const1,V12	// vpmsumd with constants
	LVX	(R4+off64),V20	// load next from buffer
	OR	$0,R2,R2

	VPMSUMD	V21,const1,V13	// vpmsumd with constants
	LVX	(R4+off80),V21	// load next from buffer
	OR	$0,R2,R2

	VPMSUMD	V22,const1,V14	// vpmsumd with constants
	LVX	(R4+off96),V22	// load next from buffer

/**
 * A Kotlin constant value. This value amy be used as `const val` initializer or annotation argument.
 * Also, may represent evaluated constant value. So, `1 + 2` will be represented as `KaIntConstantValue(3)`
 *
 * For more info about constant values please see [official Kotlin documentation](https://kotlinlang.org/docs/properties.html#compile-time-constants])
 */

    func.return %1 : tensor<10x19xf32>
  }
}

// Tests that foldable ops are constant-folded to enable legalization of ops
// that require compile time constant operand.
// "tf.Shape" can only be folded away after shape inference. tf.Reshape can only
// be lowered when tf.Shape is folded into a constant.

// CHECK-LABEL: HloModule main

	defer os.RemoveAll(dir)

	const bitLimit = 512
	const charLimit = 10000 // compiler-internal constant length limit
	testProg(dir, "x1", bitLimit, "")
	testProg(dir, "x2", bitLimit+1, "constant overflow")
	testProg(dir, "x3", charLimit-2, "constant overflow") // -2 because literal contains 0b prefix
	testProg(dir, "x4", charLimit-1, "excessively long constant")

namespace mlir {
namespace quant {

// Applies constant folding recursively if the operation and all of its operands
// are foldable. Returns the constants generated by constant-folding or the
// original operation's outputs if not folded.
SmallVector<Value> ConstantFoldOpIfPossible(Operation* op);

// This pattern tries to constant-fold the quantizable operands of supported
// TF operations.

	switch typ := under(x.typ).(type) {
	case *Basic:
		if isString(typ) {
			valid = true
			if x.mode == constant_ {
				length = int64(len(constant.StringVal(x.val)))
			}
			// an indexed string always yields a byte value
			// (not a constant) even if the string and the
			// index are constant
			x.mode = value
			x.typ = universeByte // use 'byte' name
		}

	case *Array:
		valid = true
		length = typ.len

            public class Strings {

            }

            class StringUtils {
                static void foo() { Constants.getConstant(); }
            }

        """

        file("src/main/java/foo/Constants.java") << """
            package foo;
            class Constants {
                static String getConstant() { return " "; }
            }

        """

// -----

// CHECK-LABEL: @mhlo_while
func.func private @mhlo_while() {
  // CHECK-NEXT: mhlo.constant
  // CHECK-NEXT: mhlo.constant
  // CHECK-NEXT: mhlo.constant
  %0 = mhlo.constant dense<-1> : tensor<i32>
  %1 = mhlo.constant dense<0> : tensor<i32>
  %2 = mhlo.constant dense<20> : tensor<i32>
  // CHECK-NEXT: mhlo.while