[ESIMD][NFC] Rename L3 cache hint parameters to L2 to avoid confusion (#12862)

The experimental memory API used L3 to name the cache that always was L2
due to some historical reasons.
The new non-experimental API names the same cache level as L2.

This patch just renames the old L3 params to L2 to unify the naming in
experimental and non-experimental namespaces and avoid the mess in cache
names.

Signed-off-by: Klochkov, Vyacheslav N <[email protected]>

Author: v-klochkov

sycl/include/sycl/ext/intel/experimental/esimd/detail/memory_intrin.hpp

@@ -69,7 +69,7 @@ __ESIMD_INTRIN void __esimd_raw_send_nbarrier_signal(
 ///
 /// @tparam Ty is element type.
 /// @tparam L1H is L1 cache hint.
-/// @tparam L3H is L3 cache hint.
+/// @tparam L2H is L2 cache hint.
 /// @tparam AddressScale is the address scale.
 /// @tparam ImmOffset is the immediate offset added to each address.
 /// @tparam DS is the data size.
@@ -80,7 +80,7 @@ __ESIMD_INTRIN void __esimd_raw_send_nbarrier_signal(
 /// @param pred is predicates.
 /// @param offsets is the zero-based offsets in bytes.
 /// @param surf_ind is the surface index.
-template <typename Ty, __ESIMD_ENS::cache_hint L1H, __ESIMD_ENS::cache_hint L3H,
+template <typename Ty, __ESIMD_ENS::cache_hint L1H, __ESIMD_ENS::cache_hint L2H,
           uint16_t AddressScale, int ImmOffset, __ESIMD_ENS::lsc_data_size DS,
           __ESIMD_EDNS::lsc_vector_size VS,
           __ESIMD_EDNS::lsc_data_order _Transposed, int N,
@@ -98,7 +98,7 @@ __esimd_lsc_prefetch_bti(__ESIMD_DNS::simd_mask_storage_t<N> pred,
 ///
 /// @tparam Ty is element type.
 /// @tparam L1H is L1 cache hint.
-/// @tparam L3H is L3 cache hint.
+/// @tparam L2H is L2 cache hint.
 /// @tparam DS is the data size.
 /// @tparam Transposed is the transposed version or not.
 /// @tparam NBlocks is the number of blocks.
@@ -120,7 +120,7 @@ __esimd_lsc_prefetch_bti(__ESIMD_DNS::simd_mask_storage_t<N> pred,
 ///  otherwise,
 ///  N = roundUpNextMultiple(BlockHeight, 4 / sizeof(T)) *
 ///   getNextPowerOf2(BlockWidth) * NBlocks
-template <typename Ty, __ESIMD_ENS::cache_hint L1H, __ESIMD_ENS::cache_hint L3H,
+template <typename Ty, __ESIMD_ENS::cache_hint L1H, __ESIMD_ENS::cache_hint L2H,
           __ESIMD_ENS::lsc_data_size DS,
           __ESIMD_EDNS::lsc_data_order _Transposed, uint8_t NBlocks,
           int BlockWidth, int BlockHeight, bool Transformed, int N>
@@ -136,7 +136,7 @@ __esimd_lsc_load2d_stateless(__ESIMD_DNS::simd_mask_storage_t<N> Pred,
 ///
 /// @tparam Ty is element type.
 /// @tparam L1H is L1 cache hint.
-/// @tparam L3H is L3 cache hint.
+/// @tparam L2H is L2 cache hint.
 /// @tparam DS is the data size.
 /// @tparam NBlocks is the number of blocks.
 /// @tparam Transposed is the transposed version or not.
@@ -153,7 +153,7 @@ __esimd_lsc_load2d_stateless(__ESIMD_DNS::simd_mask_storage_t<N> Pred,
 /// number of elements.
 /// @param Y is zero based Y-coordinate of the left upper rectangle corner in
 /// rows.
-template <typename Ty, __ESIMD_ENS::cache_hint L1H, __ESIMD_ENS::cache_hint L3H,
+template <typename Ty, __ESIMD_ENS::cache_hint L1H, __ESIMD_ENS::cache_hint L2H,
           __ESIMD_ENS::lsc_data_size DS,
           __ESIMD_EDNS::lsc_data_order _Transposed, uint8_t NBlocks,
           int BlockWidth, int BlockHeight, bool Transformed, int N>
@@ -168,7 +168,7 @@ __ESIMD_INTRIN void __esimd_lsc_prefetch2d_stateless(
 ///
 /// @tparam Ty is element type.
 /// @tparam L1H is L1 cache hint.
-/// @tparam L3H is L3 cache hint.
+/// @tparam L2H is L2 cache hint.
 /// @tparam DS is the data size.
 /// @tparam Transposed is the transposed version or not.
 /// @tparam NBlocks is the number of blocks.
@@ -190,7 +190,7 @@ __ESIMD_INTRIN void __esimd_lsc_prefetch2d_stateless(
 ///  otherwise,
 ///  N = roundUpNextMultiple(BlockHeight, 4 / sizeof(T)) *
 ///   getNextPowerOf2(BlockWidth) * NBlocks
-template <typename Ty, __ESIMD_ENS::cache_hint L1H, __ESIMD_ENS::cache_hint L3H,
+template <typename Ty, __ESIMD_ENS::cache_hint L1H, __ESIMD_ENS::cache_hint L2H,
           __ESIMD_ENS::lsc_data_size DS,
           __ESIMD_EDNS::lsc_data_order _Transposed, uint8_t NBlocks,
           int BlockWidth, int BlockHeight, bool Transformed, int N>