}

// encodeU encodes a U-type RISC-V instruction.
func encodeU(ins *instruction) uint32 {
	// The immediates for encodeU are the upper 20 bits of a 32 bit value.
	// Rather than have the user/compiler generate a 32 bit constant, the
	// bottommost bits of which must all be zero, instead accept just the
	// top bits.
	imm := immI(ins.as, ins.imm, 20)
	rd := regI(ins.rd)
	enc := encode(ins.as)

			//    allocation state.
			// TODO: Improve this part. At least the size of endRegs of the predecessor also has
			// an impact on the code size and compiler speed. But it is not easy to find a simple
			// and efficient method that combines multiple factors.
			idx := -1
			for i, p := range b.Preds {

input-output pairs as aliases (using `tf.aliasing_output` attribute) which read
and write to the same resource. This aliasing information can then be propagated
to XLA compiler for input/output buffer space optimizations.
### `-tf-drop-while-shape-invariant`

_Drop `shape_invariant` attribute from While/WhileRegion ops._