#define M34 7716
#define M44 16
-#define N 16
+#define N 40
void foo (unsigned int *__restrict__ pInput,
unsigned int *__restrict__ pOutput,
int main (int argc, const char* argv[])
{
unsigned int input[N], output[N], i, input2[N], output2[N];
- unsigned int check_results[N] = {3208, 1334, 28764, 35679, 2789, 13028,
- 4754, 168364, 91254, 12399, 22848, 8174, 307964, 146829, 22009, 0};
- unsigned int check_results2[N] = {7136, 2702, 84604, 57909, 6633, 16956,
- 6122, 224204, 113484, 16243, 26776, 9542, 363804, 169059, 25853, 0};
+ unsigned int check_results[N]
+ = {3208, 1334, 28764, 35679, 2789, 13028, 4754, 168364, 91254, 12399,
+ 22848, 8174, 307964, 146829, 22009, 32668, 11594, 447564, 202404, 31619,
+ 42488, 15014, 587164, 257979, 41229, 52308, 18434, 726764, 313554, 50839,
+ 62128, 21854, 866364, 369129, 60449, 71948, 25274, 1005964, 424704, 70059};
+ unsigned int check_results2[N]
+ = {7136, 2702, 84604, 57909, 6633, 16956, 6122, 224204, 113484, 16243,
+ 26776, 9542, 363804, 169059, 25853, 36596, 12962, 503404, 224634, 35463,
+ 46416, 16382, 643004, 280209, 45073, 56236, 19802, 782604, 335784, 54683,
+ 66056, 23222, 922204, 391359, 64293, 75876, 26642, 1061804, 446934, 73903};
check_vect ();
return 0;
}
-/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" } } */
-/* { dg-final { scan-tree-dump "permutation requires at least three vectors" "vect" { target vect_perm } } } */
-/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" } } */
-
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 2 "vect" { target vect_perm } } } */
#define M34 7716
#define M44 16
-#define N 16
+#define N 40
void foo (unsigned int *__restrict__ pInput, unsigned int *__restrict__ pOutput)
{
int main (int argc, const char* argv[])
{
unsigned int input[N], output[N], i;
- unsigned int check_results[N] = {3208, 1334, 28764, 35679, 2789, 13028, 4754, 168364, 91254, 12399, 22848, 8174, 307964, 146829, 22009, 0};
+ unsigned int check_results[N]
+ = {3208, 1334, 28764, 35679, 2789, 13028, 4754, 168364, 91254, 12399,
+ 22848, 8174, 307964, 146829, 22009, 32668, 11594, 447564, 202404, 31619,
+ 42488, 15014, 587164, 257979, 41229, 52308, 18434, 726764, 313554, 50839,
+ 62128, 21854, 866364, 369129, 60449, 71948, 25274, 1005964, 424704, 70059};
check_vect ();
return 0;
}
-/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 0 "vect" } } */
-/* { dg-final { scan-tree-dump "permutation requires at least three vectors" "vect" { target vect_perm} } } */
-/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 0 "vect" } } */
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" } } */
+/* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 1 "vect" { target vect_perm } } } */
}
-/* Given FIRST_MASK_ELEMENT - the mask element in element representation,
- return in CURRENT_MASK_ELEMENT its equivalent in target specific
- representation. Check that the mask is valid and return FALSE if not.
- Return TRUE in NEED_NEXT_VECTOR if the permutation requires to move to
- the next vector, i.e., the current first vector is not needed. */
-
-static bool
-vect_get_mask_element (gimple *stmt, int first_mask_element, int m,
- int mask_nunits, bool only_one_vec, int index,
- unsigned char *mask, int *current_mask_element,
- bool *need_next_vector, int *number_of_mask_fixes,
- bool *mask_fixed, bool *needs_first_vector)
-{
- int i;
-
- /* Convert to target specific representation. */
- *current_mask_element = first_mask_element + m;
- /* Adjust the value in case it's a mask for second and third vectors. */
- *current_mask_element -= mask_nunits * (*number_of_mask_fixes - 1);
-
- if (*current_mask_element < 0)
- {
- if (dump_enabled_p ())
- {
- dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
- "permutation requires past vector ");
- dump_gimple_stmt (MSG_MISSED_OPTIMIZATION, TDF_SLIM, stmt, 0);
- dump_printf (MSG_MISSED_OPTIMIZATION, "\n");
- }
- return false;
- }
-
- if (*current_mask_element < mask_nunits)
- *needs_first_vector = true;
-
- /* We have only one input vector to permute but the mask accesses values in
- the next vector as well. */
- if (only_one_vec && *current_mask_element >= mask_nunits)
- {
- if (dump_enabled_p ())
- {
- dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
- "permutation requires at least two vectors ");
- dump_gimple_stmt (MSG_MISSED_OPTIMIZATION, TDF_SLIM, stmt, 0);
- dump_printf (MSG_MISSED_OPTIMIZATION, "\n");
- }
-
- return false;
- }
-
- /* The mask requires the next vector. */
- while (*current_mask_element >= mask_nunits * 2)
- {
- if (*needs_first_vector || *mask_fixed)
- {
- /* We either need the first vector too or have already moved to the
- next vector. In both cases, this permutation needs three
- vectors. */
- if (dump_enabled_p ())
- {
- dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
- "permutation requires at "
- "least three vectors ");
- dump_gimple_stmt (MSG_MISSED_OPTIMIZATION, TDF_SLIM, stmt, 0);
- dump_printf (MSG_MISSED_OPTIMIZATION, "\n");
- }
-
- return false;
- }
-
- /* We move to the next vector, dropping the first one and working with
- the second and the third - we need to adjust the values of the mask
- accordingly. */
- *current_mask_element -= mask_nunits * *number_of_mask_fixes;
-
- for (i = 0; i < index; i++)
- mask[i] -= mask_nunits * *number_of_mask_fixes;
-
- (*number_of_mask_fixes)++;
- *mask_fixed = true;
- }
-
- *need_next_vector = *mask_fixed;
-
- /* This was the last element of this mask. Start a new one. */
- if (index == mask_nunits - 1)
- {
- *number_of_mask_fixes = 1;
- *mask_fixed = false;
- *needs_first_vector = false;
- }
-
- return true;
-}
-
-
/* Generate vector permute statements from a list of loads in DR_CHAIN.
If ANALYZE_ONLY is TRUE, only check that it is possible to create valid
permute statements for the SLP node NODE of the SLP instance
gimple *stmt = SLP_TREE_SCALAR_STMTS (node)[0];
stmt_vec_info stmt_info = vinfo_for_stmt (stmt);
tree mask_element_type = NULL_TREE, mask_type;
- int i, j, k, nunits, vec_index = 0;
+ int nunits, vec_index = 0;
tree vectype = STMT_VINFO_VECTYPE (stmt_info);
int group_size = SLP_INSTANCE_GROUP_SIZE (slp_node_instance);
- int first_mask_element;
- int index, unroll_factor, current_mask_element, ncopies;
+ int unroll_factor, mask_element, ncopies;
unsigned char *mask;
- bool only_one_vec = false, need_next_vector = false;
- int first_vec_index, second_vec_index, orig_vec_stmts_num, vect_stmts_counter;
- int number_of_mask_fixes = 1;
- bool mask_fixed = false;
- bool needs_first_vector = false;
machine_mode mode;
if (!STMT_VINFO_GROUPED_ACCESS (stmt_info))
mask = XALLOCAVEC (unsigned char, nunits);
unroll_factor = SLP_INSTANCE_UNROLLING_FACTOR (slp_node_instance);
- /* The number of vector stmts to generate based only on SLP_NODE_INSTANCE
- unrolling factor. */
- orig_vec_stmts_num
- = (STMT_VINFO_GROUP_SIZE (stmt_info)
- * SLP_INSTANCE_UNROLLING_FACTOR (slp_node_instance)
- + nunits - 1) / nunits;
- if (orig_vec_stmts_num == 1)
- only_one_vec = true;
-
/* Number of copies is determined by the final vectorization factor
relatively to SLP_NODE_INSTANCE unrolling factor. */
ncopies = vf / SLP_INSTANCE_UNROLLING_FACTOR (slp_node_instance);
we need the second and the third vectors: {b1,c1,a2,b2} and
{c2,a3,b3,c3}. */
- {
- index = 0;
- vect_stmts_counter = 0;
- vec_index = 0;
- first_vec_index = vec_index++;
- if (only_one_vec)
- second_vec_index = first_vec_index;
- else
- second_vec_index = vec_index++;
+ int vect_stmts_counter = 0;
+ int index = 0;
+ int first_vec_index = -1;
+ int second_vec_index = -1;
- for (j = 0; j < unroll_factor; j++)
- {
- for (k = 0; k < group_size; k++)
- {
- i = SLP_TREE_LOAD_PERMUTATION (node)[k];
- first_mask_element = i + j * STMT_VINFO_GROUP_SIZE (stmt_info);
- if (!vect_get_mask_element (stmt, first_mask_element, 0,
- nunits, only_one_vec, index,
- mask, ¤t_mask_element,
- &need_next_vector,
- &number_of_mask_fixes, &mask_fixed,
- &needs_first_vector))
- return false;
- gcc_assert (current_mask_element >= 0
- && current_mask_element < 2 * nunits);
- mask[index++] = current_mask_element;
+ for (int j = 0; j < unroll_factor; j++)
+ {
+ for (int k = 0; k < group_size; k++)
+ {
+ int i = (SLP_TREE_LOAD_PERMUTATION (node)[k]
+ + j * STMT_VINFO_GROUP_SIZE (stmt_info));
+ vec_index = i / nunits;
+ mask_element = i % nunits;
+ if (vec_index == first_vec_index
+ || first_vec_index == -1)
+ {
+ first_vec_index = vec_index;
+ }
+ else if (vec_index == second_vec_index
+ || second_vec_index == -1)
+ {
+ second_vec_index = vec_index;
+ mask_element += nunits;
+ }
+ else
+ {
+ if (dump_enabled_p ())
+ {
+ dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
+ "permutation requires at "
+ "least three vectors ");
+ dump_gimple_stmt (MSG_MISSED_OPTIMIZATION, TDF_SLIM,
+ stmt, 0);
+ dump_printf (MSG_MISSED_OPTIMIZATION, "\n");
+ }
+ return false;
+ }
- if (index == nunits)
- {
- index = 0;
- if (!can_vec_perm_p (mode, false, mask))
+ gcc_assert (mask_element >= 0
+ && mask_element < 2 * nunits);
+ mask[index++] = mask_element;
+
+ if (index == nunits)
+ {
+ if (!can_vec_perm_p (mode, false, mask))
+ {
+ if (dump_enabled_p ())
{
- if (dump_enabled_p ())
- {
- dump_printf_loc (MSG_MISSED_OPTIMIZATION,
- vect_location,
- "unsupported vect permute { ");
- for (i = 0; i < nunits; ++i)
- dump_printf (MSG_MISSED_OPTIMIZATION, "%d ",
- mask[i]);
- dump_printf (MSG_MISSED_OPTIMIZATION, "}\n");
- }
- return false;
+ dump_printf_loc (MSG_MISSED_OPTIMIZATION,
+ vect_location,
+ "unsupported vect permute { ");
+ for (i = 0; i < nunits; ++i)
+ dump_printf (MSG_MISSED_OPTIMIZATION, "%d ", mask[i]);
+ dump_printf (MSG_MISSED_OPTIMIZATION, "}\n");
}
+ return false;
+ }
- if (!analyze_only)
- {
- int l;
- tree mask_vec, *mask_elts;
- mask_elts = XALLOCAVEC (tree, nunits);
- for (l = 0; l < nunits; ++l)
- mask_elts[l] = build_int_cst (mask_element_type,
- mask[l]);
- mask_vec = build_vector (mask_type, mask_elts);
-
- if (need_next_vector)
- {
- first_vec_index = second_vec_index;
- second_vec_index = vec_index;
- }
+ if (!analyze_only)
+ {
+ tree mask_vec, *mask_elts;
+ mask_elts = XALLOCAVEC (tree, nunits);
+ for (int l = 0; l < nunits; ++l)
+ mask_elts[l] = build_int_cst (mask_element_type, mask[l]);
+ mask_vec = build_vector (mask_type, mask_elts);
+
+ if (second_vec_index == -1)
+ second_vec_index = first_vec_index;
+ vect_create_mask_and_perm (stmt, mask_vec, first_vec_index,
+ second_vec_index,
+ gsi, node, vectype, dr_chain,
+ ncopies, vect_stmts_counter++);
+ }
- vect_create_mask_and_perm (stmt,
- mask_vec, first_vec_index, second_vec_index,
- gsi, node, vectype, dr_chain,
- ncopies, vect_stmts_counter++);
- }
- }
- }
- }
+ index = 0;
+ first_vec_index = -1;
+ second_vec_index = -1;
+ }
+ }
}
return true;
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