Class vfloat

Source/astcenc_vecmathlib_rvv_n.h:56–128

* @brief Data type for N-wide floats. */

 * @brief Data type for N-wide floats.
 */
struct vfloat
{
	/**
	 * @brief Construct from zero-initialized value.
	 */
	ASTCENC_SIMD_INLINE vfloat() = default;

	/**
	 * @brief Construct from N values loaded from an unaligned address.
	 *
	 * Consider using loada() which is better with vectors if data is aligned
	 * to vector length.
	 */
	ASTCENC_SIMD_INLINE explicit vfloat(const float *p)
	{
		m = __riscv_vle32_v_f32m1(p, vl());
	}

	/**
	 * @brief Construct from 1 scalar value replicated across all lanes.
	 *
	 * Consider using zero() for constexpr zeros.
	 */
	ASTCENC_SIMD_INLINE explicit vfloat(float a)
	{
		m = __riscv_vfmv_v_f_f32m1(a, vl());
	}

	/**
	 * @brief Construct from an existing SIMD register.
	 */
	ASTCENC_SIMD_INLINE explicit vfloat(vfloat_t a)
	{
		m = a;
	}

	/**
	 * @brief Return vector length of type.
	 */
	static ASTCENC_SIMD_INLINE size_t vl()
	{
		return __riscv_vsetvlmax_e32m1();
	}

	/**
	 * @brief Factory that returns a vector of zeros.
	 */
	static ASTCENC_SIMD_INLINE vfloat zero()
	{
		return vfloat(0.0f);
	}

	/**
	 * @brief Factory that returns a replicated scalar loaded from memory.
	 */
	static ASTCENC_SIMD_INLINE vfloat load1(const float* p)
	{
		return vfloat(*p);