Hi, Richi.
> + if (vect_store_lanes_supported (vectype, group_size, false)
> + == IFN_MASK_LEN_STORE_LANES)
>> can you use the previously computed 'ifn' here please?
Do you mean rewrite the codes as follows :?
internal_fn lanes_ifn = vect_store_lanes_supported (vectype, group_size, false);
if (lanes_ifn == IFN_MASK_LEN_STORE_LANES).
>> I think the patch needs refreshing after r14-3214-ga74d0d36a3f337.
Yeah, working on it and I will test on both X86 and ARM.
Thanks.
juzhe.zh...@rivai.ai
From: Richard Biener
Date: 2023-08-15 17:40
To: Ju-Zhe Zhong
CC: gcc-patches; richard.sandiford
Subject: Re: [PATCH] VECT: Apply MASK_LEN_{LOAD_LANES,STORE_LANES} into
vectorizer
On Mon, 14 Aug 2023, juzhe.zh...@rivai.ai wrote:
> From: Ju-Zhe Zhong <juzhe.zh...@rivai.ai>
>
> Hi, Richard and Richi.
>
> This patch is adding MASK_LEN_{LOAD_LANES,STORE_LANES} support into
> vectorizer.
>
> Consider this simple case:
>
> void __attribute__ ((noinline, noclone))
> foo (int *__restrict a, int *__restrict b, int *__restrict c,
> int *__restrict d, int *__restrict e, int *__restrict f,
> int *__restrict g, int *__restrict h, int *__restrict j, int n)
> {
> for (int i = 0; i < n; ++i)
> {
> a[i] = j[i * 8];
> b[i] = j[i * 8 + 1];
> c[i] = j[i * 8 + 2];
> d[i] = j[i * 8 + 3];
> e[i] = j[i * 8 + 4];
> f[i] = j[i * 8 + 5];
> g[i] = j[i * 8 + 6];
> h[i] = j[i * 8 + 7];
> }
> }
>
> RVV Gimple IR:
>
> _79 = .SELECT_VL (ivtmp_81, POLY_INT_CST [4, 4]);
> ivtmp_125 = _79 * 32;
> vect_array.8 = .MASK_LEN_LOAD_LANES (vectp_j.6_124, 32B, { -1, ... }, _79,
> 0);
> vect__8.9_122 = vect_array.8[0];
> vect__8.10_121 = vect_array.8[1];
> vect__8.11_120 = vect_array.8[2];
> vect__8.12_119 = vect_array.8[3];
> vect__8.13_118 = vect_array.8[4];
> vect__8.14_117 = vect_array.8[5];
> vect__8.15_116 = vect_array.8[6];
> vect__8.16_115 = vect_array.8[7];
> vect_array.8 ={v} {CLOBBER};
> ivtmp_114 = _79 * 4;
> .MASK_LEN_STORE (vectp_a.17_113, 32B, { -1, ... }, _79, 0, vect__8.9_122);
> .MASK_LEN_STORE (vectp_b.19_109, 32B, { -1, ... }, _79, 0, vect__8.10_121);
> .MASK_LEN_STORE (vectp_c.21_105, 32B, { -1, ... }, _79, 0, vect__8.11_120);
> .MASK_LEN_STORE (vectp_d.23_101, 32B, { -1, ... }, _79, 0, vect__8.12_119);
> .MASK_LEN_STORE (vectp_e.25_97, 32B, { -1, ... }, _79, 0, vect__8.13_118);
> .MASK_LEN_STORE (vectp_f.27_93, 32B, { -1, ... }, _79, 0, vect__8.14_117);
> .MASK_LEN_STORE (vectp_g.29_89, 32B, { -1, ... }, _79, 0, vect__8.15_116);
> .MASK_LEN_STORE (vectp_h.31_85, 32B, { -1, ... }, _79, 0, vect__8.16_115);
>
> ASM:
>
> foo:
> lw t4,8(sp)
> ld t5,0(sp)
> ble t4,zero,.L5
> .L3:
> vsetvli t1,t4,e8,mf4,ta,ma
> vlseg8e32.v v8,(t5)
> slli t3,t1,2
> slli t6,t1,5
> vse32.v v8,0(a0)
> vse32.v v9,0(a1)
> vse32.v v10,0(a2)
> vse32.v v11,0(a3)
> vse32.v v12,0(a4)
> vse32.v v13,0(a5)
> vse32.v v14,0(a6)
> vse32.v v15,0(a7)
> sub t4,t4,t1
> add t5,t5,t6
> add a0,a0,t3
> add a1,a1,t3
> add a2,a2,t3
> add a3,a3,t3
> add a4,a4,t3
> add a5,a5,t3
> add a6,a6,t3
> add a7,a7,t3
> bne t4,zero,.L3
> .L5:
> ret
>
> The details of the approach:
>
> Step 1 - Modifiy the LANES LOAD/STORE support function
> (vect_load_lanes_supported/vect_store_lanes_supported):
>
> +/* Return FN if vec_{masked_,mask_len,}load_lanes is available for COUNT
> + vectors of type VECTYPE. MASKED_P says whether the masked form is
> needed. */
>
> -bool
> +internal_fn
> vect_load_lanes_supported (tree vectype, unsigned HOST_WIDE_INT count,
> bool masked_p)
> {
> - if (masked_p)
> - return vect_lanes_optab_supported_p ("vec_mask_load_lanes",
> - vec_mask_load_lanes_optab,
> - vectype, count);
> + if (vect_lanes_optab_supported_p ("vec_mask_len_load_lanes",
> + vec_mask_len_load_lanes_optab,
> + vectype, count))
> + return IFN_MASK_LEN_LOAD_LANES;
> + else if (masked_p)
> + {
> + if (vect_lanes_optab_supported_p ("vec_mask_load_lanes",
> + vec_mask_load_lanes_optab,
> + vectype, count))
> + return IFN_MASK_LOAD_LANES;
> + }
> else
> - return vect_lanes_optab_supported_p ("vec_load_lanes",
> - vec_load_lanes_optab,
> - vectype, count);
> + {
> + if (vect_lanes_optab_supported_p ("vec_load_lanes",
> + vec_load_lanes_optab,
> + vectype, count))
> + return IFN_LOAD_LANES;
> + }
> + return IFN_LAST;
> }
>
> Instead of returning TRUE or FALSE whether target support the LANES
> LOAD/STORE.
> I change it into return internal_fn of the LANES LOAD/STORE that target
> support,
> If target didn't support any LANE LOAD/STORE optabs, return IFN_LAST.
>
> Step 2 - Build MASK_LEN_{LANES_LOAD,LANES_STORE} Gimple IR:
>
> + if (vect_store_lanes_supported (vectype, group_size, false)
> + == IFN_MASK_LEN_STORE_LANES)
> + {
> + if (loop_lens)
> + final_len = vect_get_loop_len (loop_vinfo, gsi, loop_lens,
> + ncopies, vectype, j, 1);
> + else
> + final_len = size_int (TYPE_VECTOR_SUBPARTS (vectype));
> + signed char biasval
> + = LOOP_VINFO_PARTIAL_LOAD_STORE_BIAS (loop_vinfo);
> + bias = build_int_cst (intQI_type_node, biasval);
> + if (!final_mask)
> + {
> + mask_vectype = truth_type_for (vectype);
> + final_mask = build_minus_one_cst (mask_vectype);
> + }
> + }
> +
> gcall *call;
> - if (final_mask)
> + if (final_len && final_mask)
> + {
> + /* Emit:
> + MASK_LEN_STORE_LANES (DATAREF_PTR, ALIAS_PTR, VEC_MASK,
> + LEN, BIAS, VEC_ARRAY). */
> + unsigned int align = TYPE_ALIGN (TREE_TYPE (vectype));
> + tree alias_ptr = build_int_cst (ref_type, align);
> + call = gimple_build_call_internal (IFN_MASK_LEN_STORE_LANES, 6,
> + dataref_ptr, alias_ptr,
> + final_mask, final_len, bias,
> + vec_array);
> + }
> + else if (final_mask)
>
> The LEN and MASK flow is totally the same as other MASK_LEN_* load/store.
>
> This patch bootstrap and regrssion on X86 passed.
>
> Fully tested on RISC-V.
>
> Ok for trunk ?
I think the patch needs refreshing after r14-3214-ga74d0d36a3f337.
> gcc/ChangeLog:
>
> * internal-fn.cc (internal_load_fn_p): Apply
> MASK_LEN_{LOAD_LANES,STORE_LANES} into vectorizer.
> (internal_store_fn_p): Ditto.
> (internal_fn_len_index): Ditto.
> (internal_fn_mask_index): Ditto.
> (internal_fn_stored_value_index): Ditto.
> * tree-vect-data-refs.cc (vect_store_lanes_supported): Ditto.
> (vect_load_lanes_supported): Ditto.
> * tree-vect-loop.cc: Ditto.
> * tree-vect-slp.cc (vect_slp_prefer_store_lanes_p): Ditto.
> * tree-vect-stmts.cc (check_load_store_for_partial_vectors): Ditto.
> (get_group_load_store_type): Ditto.
> (vectorizable_store): Ditto.
> (vectorizable_load): Ditto.
> * tree-vectorizer.h (vect_store_lanes_supported): Ditto.
> (vect_load_lanes_supported): Ditto.
>
> ---
> gcc/internal-fn.cc | 7 +++
> gcc/tree-vect-data-refs.cc | 61 +++++++++++++++++--------
> gcc/tree-vect-loop.cc | 11 +++--
> gcc/tree-vect-slp.cc | 2 +-
> gcc/tree-vect-stmts.cc | 93 ++++++++++++++++++++++++++++++++------
> gcc/tree-vectorizer.h | 4 +-
> 6 files changed, 137 insertions(+), 41 deletions(-)
>
> diff --git a/gcc/internal-fn.cc b/gcc/internal-fn.cc
> index 4f2b20a79e5..cc1ede58799 100644
> --- a/gcc/internal-fn.cc
> +++ b/gcc/internal-fn.cc
> @@ -4578,6 +4578,7 @@ internal_load_fn_p (internal_fn fn)
> case IFN_MASK_LOAD:
> case IFN_LOAD_LANES:
> case IFN_MASK_LOAD_LANES:
> + case IFN_MASK_LEN_LOAD_LANES:
> case IFN_GATHER_LOAD:
> case IFN_MASK_GATHER_LOAD:
> case IFN_MASK_LEN_GATHER_LOAD:
> @@ -4600,6 +4601,7 @@ internal_store_fn_p (internal_fn fn)
> case IFN_MASK_STORE:
> case IFN_STORE_LANES:
> case IFN_MASK_STORE_LANES:
> + case IFN_MASK_LEN_STORE_LANES:
> case IFN_SCATTER_STORE:
> case IFN_MASK_SCATTER_STORE:
> case IFN_MASK_LEN_SCATTER_STORE:
> @@ -4672,6 +4674,8 @@ internal_fn_len_index (internal_fn fn)
> case IFN_COND_LEN_NEG:
> case IFN_MASK_LEN_LOAD:
> case IFN_MASK_LEN_STORE:
> + case IFN_MASK_LEN_LOAD_LANES:
> + case IFN_MASK_LEN_STORE_LANES:
> return 3;
>
> default:
> @@ -4689,8 +4693,10 @@ internal_fn_mask_index (internal_fn fn)
> {
> case IFN_MASK_LOAD:
> case IFN_MASK_LOAD_LANES:
> + case IFN_MASK_LEN_LOAD_LANES:
> case IFN_MASK_STORE:
> case IFN_MASK_STORE_LANES:
> + case IFN_MASK_LEN_STORE_LANES:
> case IFN_MASK_LEN_LOAD:
> case IFN_MASK_LEN_STORE:
> return 2;
> @@ -4726,6 +4732,7 @@ internal_fn_stored_value_index (internal_fn fn)
> return 4;
>
> case IFN_MASK_LEN_STORE:
> + case IFN_MASK_LEN_STORE_LANES:
> return 5;
>
> default:
> diff --git a/gcc/tree-vect-data-refs.cc b/gcc/tree-vect-data-refs.cc
> index a3570c45b52..232b91e8ed3 100644
> --- a/gcc/tree-vect-data-refs.cc
> +++ b/gcc/tree-vect-data-refs.cc
> @@ -5439,24 +5439,34 @@ vect_grouped_store_supported (tree vectype, unsigned
> HOST_WIDE_INT count)
> }
>
>
> -/* Return TRUE if vec_{mask_}store_lanes is available for COUNT vectors of
> +/* Return FN if vec_{mask_}store_lanes is available for COUNT vectors of
> type VECTYPE. MASKED_P says whether the masked form is needed. */
>
> -bool
> +internal_fn
> vect_store_lanes_supported (tree vectype, unsigned HOST_WIDE_INT count,
> bool masked_p)
> {
> - if (masked_p)
> - return vect_lanes_optab_supported_p ("vec_mask_store_lanes",
> - vec_mask_store_lanes_optab,
> - vectype, count);
> + if (vect_lanes_optab_supported_p ("vec_mask_len_store_lanes",
> + vec_mask_len_store_lanes_optab,
> + vectype, count))
> + return IFN_MASK_LEN_STORE_LANES;
> + else if (masked_p)
> + {
> + if (vect_lanes_optab_supported_p ("vec_mask_store_lanes",
> + vec_mask_store_lanes_optab,
> + vectype, count))
> + return IFN_MASK_STORE_LANES;
> + }
> else
> - return vect_lanes_optab_supported_p ("vec_store_lanes",
> - vec_store_lanes_optab,
> - vectype, count);
> + {
> + if (vect_lanes_optab_supported_p ("vec_store_lanes",
> + vec_store_lanes_optab,
> + vectype, count))
> + return IFN_STORE_LANES;
> + }
> + return IFN_LAST;
> }
>
> -
> /* Function vect_permute_store_chain.
>
> Given a chain of interleaved stores in DR_CHAIN of LENGTH that must be
> @@ -6056,21 +6066,32 @@ vect_grouped_load_supported (tree vectype, bool
> single_element_p,
> return false;
> }
>
> -/* Return TRUE if vec_{masked_}load_lanes is available for COUNT vectors of
> - type VECTYPE. MASKED_P says whether the masked form is needed. */
> +/* Return FN if vec_{masked_,mask_len,}load_lanes is available for COUNT
> + vectors of type VECTYPE. MASKED_P says whether the masked form is
> needed. */
>
> -bool
> +internal_fn
> vect_load_lanes_supported (tree vectype, unsigned HOST_WIDE_INT count,
> bool masked_p)
> {
> - if (masked_p)
> - return vect_lanes_optab_supported_p ("vec_mask_load_lanes",
> - vec_mask_load_lanes_optab,
> - vectype, count);
> + if (vect_lanes_optab_supported_p ("vec_mask_len_load_lanes",
> + vec_mask_len_load_lanes_optab,
> + vectype, count))
> + return IFN_MASK_LEN_LOAD_LANES;
> + else if (masked_p)
> + {
> + if (vect_lanes_optab_supported_p ("vec_mask_load_lanes",
> + vec_mask_load_lanes_optab,
> + vectype, count))
> + return IFN_MASK_LOAD_LANES;
> + }
> else
> - return vect_lanes_optab_supported_p ("vec_load_lanes",
> - vec_load_lanes_optab,
> - vectype, count);
> + {
> + if (vect_lanes_optab_supported_p ("vec_load_lanes",
> + vec_load_lanes_optab,
> + vectype, count))
> + return IFN_LOAD_LANES;
> + }
> + return IFN_LAST;
> }
>
> /* Function vect_permute_load_chain.
> diff --git a/gcc/tree-vect-loop.cc b/gcc/tree-vect-loop.cc
> index 07f3717ed9d..2a0cfa3e2e8 100644
> --- a/gcc/tree-vect-loop.cc
> +++ b/gcc/tree-vect-loop.cc
> @@ -2839,7 +2839,8 @@ start_over:
> instructions record it and move on to the next instance. */
> if (loads_permuted
> && SLP_INSTANCE_KIND (instance) == slp_inst_kind_store
> - && vect_store_lanes_supported (vectype, group_size, false))
> + && vect_store_lanes_supported (vectype, group_size, false)
> + != IFN_LAST)
> {
> FOR_EACH_VEC_ELT (SLP_INSTANCE_LOADS (instance), i, load_node)
> {
> @@ -2848,9 +2849,9 @@ start_over:
> /* Use SLP for strided accesses (or if we can't
> load-lanes). */
> if (STMT_VINFO_STRIDED_P (stmt_vinfo)
> - || ! vect_load_lanes_supported
> + || vect_load_lanes_supported
> (STMT_VINFO_VECTYPE (stmt_vinfo),
> - DR_GROUP_SIZE (stmt_vinfo), false))
> + DR_GROUP_SIZE (stmt_vinfo), false) != IFN_LAST)
> break;
> }
>
> @@ -3153,7 +3154,7 @@ again:
> vinfo = DR_GROUP_FIRST_ELEMENT (vinfo);
> unsigned int size = DR_GROUP_SIZE (vinfo);
> tree vectype = STMT_VINFO_VECTYPE (vinfo);
> - if (! vect_store_lanes_supported (vectype, size, false)
> + if (vect_store_lanes_supported (vectype, size, false) != IFN_LAST
> && ! known_eq (TYPE_VECTOR_SUBPARTS (vectype), 1U)
> && ! vect_grouped_store_supported (vectype, size))
> return opt_result::failure_at (vinfo->stmt,
> @@ -3165,7 +3166,7 @@ again:
> bool single_element_p = !DR_GROUP_NEXT_ELEMENT (vinfo);
> size = DR_GROUP_SIZE (vinfo);
> vectype = STMT_VINFO_VECTYPE (vinfo);
> - if (! vect_load_lanes_supported (vectype, size, false)
> + if (vect_load_lanes_supported (vectype, size, false) != IFN_LAST
> && ! vect_grouped_load_supported (vectype, single_element_p,
> size))
> return opt_result::failure_at (vinfo->stmt,
> diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc
> index 41997d5a546..3adb06dfa18 100644
> --- a/gcc/tree-vect-slp.cc
> +++ b/gcc/tree-vect-slp.cc
> @@ -3094,7 +3094,7 @@ vect_slp_prefer_store_lanes_p (vec_info *vinfo,
> stmt_vec_info stmt_info,
> if (multiple_p (group_size - new_group_size, TYPE_VECTOR_SUBPARTS
> (vectype))
> || multiple_p (new_group_size, TYPE_VECTOR_SUBPARTS (vectype)))
> return false;
> - return vect_store_lanes_supported (vectype, group_size, false);
> + return vect_store_lanes_supported (vectype, group_size, false) != IFN_LAST;
> }
>
> /* Analyze an SLP instance starting from a group of grouped stores. Call
> diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
> index 89607a98f99..0f21315995e 100644
> --- a/gcc/tree-vect-stmts.cc
> +++ b/gcc/tree-vect-stmts.cc
> @@ -1610,9 +1610,15 @@ check_load_store_for_partial_vectors (loop_vec_info
> loop_vinfo, tree vectype,
> bool is_load = (vls_type == VLS_LOAD);
> if (memory_access_type == VMAT_LOAD_STORE_LANES)
> {
> - if (is_load
> - ? !vect_load_lanes_supported (vectype, group_size, true)
> - : !vect_store_lanes_supported (vectype, group_size, true))
> + internal_fn ifn
> + = (is_load ? vect_load_lanes_supported (vectype, group_size, true)
> + : vect_store_lanes_supported (vectype, group_size, true));
> + if (ifn == IFN_MASK_LEN_LOAD_LANES || ifn == IFN_MASK_LEN_STORE_LANES)
> + vect_record_loop_len (loop_vinfo, lens, nvectors, vectype, 1);
> + else if (ifn == IFN_MASK_LOAD_LANES || ifn == IFN_MASK_STORE_LANES)
> + vect_record_loop_mask (loop_vinfo, masks, nvectors, vectype,
> + scalar_mask);
> + else
> {
> if (dump_enabled_p ())
> dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
> @@ -1620,10 +1626,7 @@ check_load_store_for_partial_vectors (loop_vec_info
> loop_vinfo, tree vectype,
> " the target doesn't have an appropriate"
> " load/store-lanes instruction.\n");
> LOOP_VINFO_CAN_USE_PARTIAL_VECTORS_P (loop_vinfo) = false;
> - return;
> }
> - vect_record_loop_mask (loop_vinfo, masks, nvectors, vectype,
> - scalar_mask);
> return;
> }
>
> @@ -2274,9 +2277,11 @@ get_group_load_store_type (vec_info *vinfo,
> stmt_vec_info stmt_info,
>
> /* Otherwise try using LOAD/STORE_LANES. */
> else if (vls_type == VLS_LOAD
> - ? vect_load_lanes_supported (vectype, group_size, masked_p)
> - : vect_store_lanes_supported (vectype, group_size,
> - masked_p))
> + ? vect_load_lanes_supported (vectype, group_size, masked_p)
> + != IFN_LAST
> + : vect_store_lanes_supported (vectype, group_size,
> + masked_p)
> + != IFN_LAST)
> {
> *memory_access_type = VMAT_LOAD_STORE_LANES;
> overrun_p = would_overrun_p;
> @@ -3090,8 +3095,7 @@ vect_get_loop_variant_data_ptr_increment (
> /* TODO: We don't support gather/scatter or load_lanes/store_lanes for
> pointer
> IVs are updated by variable amount but we will support them in the
> future.
> */
> - gcc_assert (memory_access_type != VMAT_GATHER_SCATTER
> - && memory_access_type != VMAT_LOAD_STORE_LANES);
> + gcc_assert (memory_access_type != VMAT_GATHER_SCATTER);
>
> /* When we support SELECT_VL pattern, we dynamic adjust
> the memory address by .SELECT_VL result.
> @@ -8885,6 +8889,8 @@ vectorizable_store (vec_info *vinfo,
> }
>
> tree final_mask = NULL;
> + tree final_len = NULL;
> + tree bias = NULL;
> if (loop_masks)
> final_mask = vect_get_loop_mask (loop_vinfo, gsi, loop_masks,
> ncopies, vectype, j);
> @@ -8892,8 +8898,38 @@ vectorizable_store (vec_info *vinfo,
> final_mask = prepare_vec_mask (loop_vinfo, mask_vectype,
> final_mask, vec_mask, gsi);
>
> + if (vect_store_lanes_supported (vectype, group_size, false)
> + == IFN_MASK_LEN_STORE_LANES)
can you use the previously computed 'ifn' here please?
Otherwise LGTM.
Thanks,
Richard.
> + {
> + if (loop_lens)
> + final_len = vect_get_loop_len (loop_vinfo, gsi, loop_lens,
> + ncopies, vectype, j, 1);
> + else
> + final_len = size_int (TYPE_VECTOR_SUBPARTS (vectype));
> + signed char biasval
> + = LOOP_VINFO_PARTIAL_LOAD_STORE_BIAS (loop_vinfo);
> + bias = build_int_cst (intQI_type_node, biasval);
> + if (!final_mask)
> + {
> + mask_vectype = truth_type_for (vectype);
> + final_mask = build_minus_one_cst (mask_vectype);
> + }
> + }
> +
> gcall *call;
> - if (final_mask)
> + if (final_len && final_mask)
> + {
> + /* Emit:
> + MASK_LEN_STORE_LANES (DATAREF_PTR, ALIAS_PTR, VEC_MASK,
> + LEN, BIAS, VEC_ARRAY). */
> + unsigned int align = TYPE_ALIGN (TREE_TYPE (vectype));
> + tree alias_ptr = build_int_cst (ref_type, align);
> + call = gimple_build_call_internal (IFN_MASK_LEN_STORE_LANES, 6,
> + dataref_ptr, alias_ptr,
> + final_mask, final_len, bias,
> + vec_array);
> + }
> + else if (final_mask)
> {
> /* Emit:
> MASK_STORE_LANES (DATAREF_PTR, ALIAS_PTR, VEC_MASK,
> @@ -10445,6 +10481,8 @@ vectorizable_load (vec_info *vinfo,
> vec_array = create_vector_array (vectype, vec_num);
>
> tree final_mask = NULL_TREE;
> + tree final_len = NULL_TREE;
> + tree bias = NULL_TREE;
> if (loop_masks)
> final_mask = vect_get_loop_mask (loop_vinfo, gsi, loop_masks,
> ncopies, vectype, j);
> @@ -10452,8 +10490,37 @@ vectorizable_load (vec_info *vinfo,
> final_mask = prepare_vec_mask (loop_vinfo, mask_vectype,
> final_mask, vec_mask, gsi);
>
> + if (vect_load_lanes_supported (vectype, group_size, false)
> + == IFN_MASK_LEN_LOAD_LANES)
> + {
> + if (loop_lens)
> + final_len = vect_get_loop_len (loop_vinfo, gsi, loop_lens,
> + ncopies, vectype, j, 1);
> + else
> + final_len = size_int (TYPE_VECTOR_SUBPARTS (vectype));
> + signed char biasval
> + = LOOP_VINFO_PARTIAL_LOAD_STORE_BIAS (loop_vinfo);
> + bias = build_int_cst (intQI_type_node, biasval);
> + if (!final_mask)
> + {
> + mask_vectype = truth_type_for (vectype);
> + final_mask = build_minus_one_cst (mask_vectype);
> + }
> + }
> +
> gcall *call;
> - if (final_mask)
> + if (final_len && final_mask)
> + {
> + /* Emit:
> + VEC_ARRAY = MASK_LEN_LOAD_LANES (DATAREF_PTR, ALIAS_PTR,
> + VEC_MASK, LEN, BIAS). */
> + unsigned int align = TYPE_ALIGN (TREE_TYPE (vectype));
> + tree alias_ptr = build_int_cst (ref_type, align);
> + call = gimple_build_call_internal (IFN_MASK_LEN_LOAD_LANES, 5,
> + dataref_ptr, alias_ptr,
> + final_mask, final_len, bias);
> + }
> + else if (final_mask)
> {
> /* Emit:
> VEC_ARRAY = MASK_LOAD_LANES (DATAREF_PTR, ALIAS_PTR,
> diff --git a/gcc/tree-vectorizer.h b/gcc/tree-vectorizer.h
> index 5987a327332..6a2e55aa1fc 100644
> --- a/gcc/tree-vectorizer.h
> +++ b/gcc/tree-vectorizer.h
> @@ -2296,9 +2296,9 @@ extern tree bump_vector_ptr (vec_info *, tree, gimple
> *, gimple_stmt_iterator *,
> extern void vect_copy_ref_info (tree, tree);
> extern tree vect_create_destination_var (tree, tree);
> extern bool vect_grouped_store_supported (tree, unsigned HOST_WIDE_INT);
> -extern bool vect_store_lanes_supported (tree, unsigned HOST_WIDE_INT, bool);
> +extern internal_fn vect_store_lanes_supported (tree, unsigned HOST_WIDE_INT,
> bool);
> extern bool vect_grouped_load_supported (tree, bool, unsigned HOST_WIDE_INT);
> -extern bool vect_load_lanes_supported (tree, unsigned HOST_WIDE_INT, bool);
> +extern internal_fn vect_load_lanes_supported (tree, unsigned HOST_WIDE_INT,
> bool);
> extern void vect_permute_store_chain (vec_info *, vec<tree> &,
> unsigned int, stmt_vec_info,
> gimple_stmt_iterator *, vec<tree> *);
>
--
Richard Biener <rguent...@suse.de>
SUSE Software Solutions Germany GmbH,
Frankenstrasse 146, 90461 Nuernberg, Germany;
GF: Ivo Totev, Andrew McDonald, Werner Knoblich; (HRB 36809, AG Nuernberg)
