/* Analysis Utilities for Loop Vectorization.
- Copyright (C) 2006 Free Software Foundation, Inc.
+ Copyright (C) 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
Contributed by Dorit Nuzman <dorit@il.ibm.com>
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "tm.h"
#include "ggc.h"
#include "tree.h"
-
#include "target.h"
#include "basic-block.h"
#include "diagnostic.h"
#include "tree-flow.h"
#include "tree-dump.h"
-#include "timevar.h"
#include "cfgloop.h"
#include "expr.h"
#include "optabs.h"
#include "recog.h"
#include "toplev.h"
-/* Funcion prototypes */
+/* Function prototypes */
static void vect_pattern_recog_1
- (tree (* ) (tree, tree *, tree *), block_stmt_iterator);
-static bool widened_name_p (tree, tree, tree *, tree *);
+ (gimple (* ) (gimple, tree *, tree *), gimple_stmt_iterator);
+static bool widened_name_p (tree, gimple, tree *, gimple *);
/* Pattern recognition functions */
-static tree vect_recog_widen_sum_pattern (tree, tree *, tree *);
-static tree vect_recog_widen_mult_pattern (tree, tree *, tree *);
-static tree vect_recog_dot_prod_pattern (tree, tree *, tree *);
+static gimple vect_recog_widen_sum_pattern (gimple, tree *, tree *);
+static gimple vect_recog_widen_mult_pattern (gimple, tree *, tree *);
+static gimple vect_recog_dot_prod_pattern (gimple, tree *, tree *);
+static gimple vect_recog_pow_pattern (gimple, tree *, tree *);
static vect_recog_func_ptr vect_vect_recog_func_ptrs[NUM_PATTERNS] = {
vect_recog_widen_mult_pattern,
vect_recog_widen_sum_pattern,
- vect_recog_dot_prod_pattern};
+ vect_recog_dot_prod_pattern,
+ vect_recog_pow_pattern};
/* Function widened_name_p
*/
static bool
-widened_name_p (tree name, tree use_stmt, tree *half_type, tree *def_stmt)
+widened_name_p (tree name, gimple use_stmt, tree *half_type, gimple *def_stmt)
{
tree dummy;
+ gimple dummy_gimple;
loop_vec_info loop_vinfo;
stmt_vec_info stmt_vinfo;
- tree expr;
tree type = TREE_TYPE (name);
tree oprnd0;
enum vect_def_type dt;
if (!vect_is_simple_use (name, loop_vinfo, def_stmt, &def, &dt))
return false;
- if (dt != vect_loop_def
- && dt != vect_invariant_def && dt != vect_constant_def)
+ if (dt != vect_internal_def
+ && dt != vect_external_def && dt != vect_constant_def)
return false;
if (! *def_stmt)
return false;
- if (TREE_CODE (*def_stmt) != MODIFY_EXPR)
+ if (!is_gimple_assign (*def_stmt))
return false;
- expr = TREE_OPERAND (*def_stmt, 1);
- if (TREE_CODE (expr) != NOP_EXPR)
+ if (gimple_assign_rhs_code (*def_stmt) != NOP_EXPR)
return false;
- oprnd0 = TREE_OPERAND (expr, 0);
+ oprnd0 = gimple_assign_rhs1 (*def_stmt);
*half_type = TREE_TYPE (oprnd0);
if (!INTEGRAL_TYPE_P (type) || !INTEGRAL_TYPE_P (*half_type)
|| (TYPE_PRECISION (type) < (TYPE_PRECISION (*half_type) * 2)))
return false;
- if (!vect_is_simple_use (oprnd0, loop_vinfo, &dummy, &dummy, &dt))
- return false;
-
- if (dt != vect_invariant_def && dt != vect_constant_def
- && dt != vect_loop_def)
+ if (!vect_is_simple_use (oprnd0, loop_vinfo, &dummy_gimple, &dummy, &dt))
return false;
return true;
}
+/* Helper to return a new temporary for pattern of TYPE for STMT. If STMT
+ is NULL, the caller must set SSA_NAME_DEF_STMT for the returned SSA var. */
+
+static tree
+vect_recog_temp_ssa_var (tree type, gimple stmt)
+{
+ tree var = create_tmp_var (type, "patt");
+
+ add_referenced_var (var);
+ var = make_ssa_name (var, stmt);
+ return var;
+}
/* Function vect_recog_dot_prod_pattern
S7 sum_1 = prod + sum_0;
where 'TYPE1' is exactly double the size of type 'type', and 'TYPE2' is the
- same size of 'TYPE1' or bigger. This is a sepcial case of a reduction
+ same size of 'TYPE1' or bigger. This is a special case of a reduction
computation.
Input:
* Return value: A new stmt that will be used to replace the sequence of
stmts that constitute the pattern. In this case it will be:
WIDEN_DOT_PRODUCT <x_t, y_t, sum_0>
-*/
-static tree
-vect_recog_dot_prod_pattern (tree last_stmt, tree *type_in, tree *type_out)
+ Note: The dot-prod idiom is a widening reduction pattern that is
+ vectorized without preserving all the intermediate results. It
+ produces only N/2 (widened) results (by summing up pairs of
+ intermediate results) rather than all N results. Therefore, we
+ cannot allow this pattern when we want to get all the results and in
+ the correct order (as is the case when this computation is in an
+ inner-loop nested in an outer-loop that us being vectorized). */
+
+static gimple
+vect_recog_dot_prod_pattern (gimple last_stmt, tree *type_in, tree *type_out)
{
- tree stmt, expr;
+ gimple stmt;
tree oprnd0, oprnd1;
tree oprnd00, oprnd01;
stmt_vec_info stmt_vinfo = vinfo_for_stmt (last_stmt);
tree type, half_type;
- tree pattern_expr;
+ gimple pattern_stmt;
tree prod_type;
+ loop_vec_info loop_info = STMT_VINFO_LOOP_VINFO (stmt_vinfo);
+ struct loop *loop = LOOP_VINFO_LOOP (loop_info);
+ tree var, rhs;
- if (TREE_CODE (last_stmt) != MODIFY_EXPR)
+ if (!is_gimple_assign (last_stmt))
return NULL;
- expr = TREE_OPERAND (last_stmt, 1);
- type = TREE_TYPE (expr);
+ type = gimple_expr_type (last_stmt);
/* Look for the following pattern
DX = (TYPE1) X;
/* Starting from LAST_STMT, follow the defs of its uses in search
of the above pattern. */
- if (TREE_CODE (expr) != PLUS_EXPR)
+ if (gimple_assign_rhs_code (last_stmt) != PLUS_EXPR)
return NULL;
if (STMT_VINFO_IN_PATTERN_P (stmt_vinfo))
/* Has been detected as widening-summation? */
stmt = STMT_VINFO_RELATED_STMT (stmt_vinfo);
- expr = TREE_OPERAND (stmt, 1);
- type = TREE_TYPE (expr);
- if (TREE_CODE (expr) != WIDEN_SUM_EXPR)
+ type = gimple_expr_type (stmt);
+ if (gimple_assign_rhs_code (stmt) != WIDEN_SUM_EXPR)
return NULL;
- oprnd0 = TREE_OPERAND (expr, 0);
- oprnd1 = TREE_OPERAND (expr, 1);
+ oprnd0 = gimple_assign_rhs1 (stmt);
+ oprnd1 = gimple_assign_rhs2 (stmt);
half_type = TREE_TYPE (oprnd0);
}
else
{
- tree def_stmt;
+ gimple def_stmt;
if (STMT_VINFO_DEF_TYPE (stmt_vinfo) != vect_reduction_def)
return NULL;
- oprnd0 = TREE_OPERAND (expr, 0);
- oprnd1 = TREE_OPERAND (expr, 1);
+ oprnd0 = gimple_assign_rhs1 (last_stmt);
+ oprnd1 = gimple_assign_rhs2 (last_stmt);
if (TYPE_MAIN_VARIANT (TREE_TYPE (oprnd0)) != TYPE_MAIN_VARIANT (type)
|| TYPE_MAIN_VARIANT (TREE_TYPE (oprnd1)) != TYPE_MAIN_VARIANT (type))
return NULL;
if (widened_name_p (oprnd0, stmt, &half_type, &def_stmt))
{
stmt = def_stmt;
- expr = TREE_OPERAND (stmt, 1);
- oprnd0 = TREE_OPERAND (expr, 0);
+ oprnd0 = gimple_assign_rhs1 (stmt);
}
else
half_type = type;
prod_type = half_type;
stmt = SSA_NAME_DEF_STMT (oprnd0);
- gcc_assert (stmt);
+ /* FORNOW. Can continue analyzing the def-use chain when this stmt in a phi
+ inside the loop (in case we are analyzing an outer-loop). */
+ if (!is_gimple_assign (stmt))
+ return NULL;
stmt_vinfo = vinfo_for_stmt (stmt);
gcc_assert (stmt_vinfo);
- gcc_assert (STMT_VINFO_DEF_TYPE (stmt_vinfo) == vect_loop_def);
- expr = TREE_OPERAND (stmt, 1);
- if (TREE_CODE (expr) != MULT_EXPR)
+ if (STMT_VINFO_DEF_TYPE (stmt_vinfo) != vect_internal_def)
+ return NULL;
+ if (gimple_assign_rhs_code (stmt) != MULT_EXPR)
return NULL;
if (STMT_VINFO_IN_PATTERN_P (stmt_vinfo))
{
/* Has been detected as a widening multiplication? */
stmt = STMT_VINFO_RELATED_STMT (stmt_vinfo);
- expr = TREE_OPERAND (stmt, 1);
- if (TREE_CODE (expr) != WIDEN_MULT_EXPR)
+ if (gimple_assign_rhs_code (stmt) != WIDEN_MULT_EXPR)
return NULL;
stmt_vinfo = vinfo_for_stmt (stmt);
gcc_assert (stmt_vinfo);
- gcc_assert (STMT_VINFO_DEF_TYPE (stmt_vinfo) == vect_loop_def);
- oprnd00 = TREE_OPERAND (expr, 0);
- oprnd01 = TREE_OPERAND (expr, 1);
+ gcc_assert (STMT_VINFO_DEF_TYPE (stmt_vinfo) == vect_internal_def);
+ oprnd00 = gimple_assign_rhs1 (stmt);
+ oprnd01 = gimple_assign_rhs2 (stmt);
}
else
{
tree half_type0, half_type1;
- tree def_stmt;
+ gimple def_stmt;
tree oprnd0, oprnd1;
- oprnd0 = TREE_OPERAND (expr, 0);
- oprnd1 = TREE_OPERAND (expr, 1);
+ oprnd0 = gimple_assign_rhs1 (stmt);
+ oprnd1 = gimple_assign_rhs2 (stmt);
if (TYPE_MAIN_VARIANT (TREE_TYPE (oprnd0))
!= TYPE_MAIN_VARIANT (prod_type)
|| TYPE_MAIN_VARIANT (TREE_TYPE (oprnd1))
return NULL;
if (!widened_name_p (oprnd0, stmt, &half_type0, &def_stmt))
return NULL;
- oprnd00 = TREE_OPERAND (TREE_OPERAND (def_stmt, 1), 0);
+ oprnd00 = gimple_assign_rhs1 (def_stmt);
if (!widened_name_p (oprnd1, stmt, &half_type1, &def_stmt))
return NULL;
- oprnd01 = TREE_OPERAND (TREE_OPERAND (def_stmt, 1), 0);
+ oprnd01 = gimple_assign_rhs1 (def_stmt);
if (TYPE_MAIN_VARIANT (half_type0) != TYPE_MAIN_VARIANT (half_type1))
return NULL;
if (TYPE_PRECISION (prod_type) != TYPE_PRECISION (half_type0) * 2)
*type_out = type;
/* Pattern detected. Create a stmt to be used to replace the pattern: */
- pattern_expr = build3 (DOT_PROD_EXPR, type, oprnd00, oprnd01, oprnd1);
+ var = vect_recog_temp_ssa_var (type, NULL);
+ rhs = build3 (DOT_PROD_EXPR, type, oprnd00, oprnd01, oprnd1),
+ pattern_stmt = gimple_build_assign (var, rhs);
+
if (vect_print_dump_info (REPORT_DETAILS))
{
fprintf (vect_dump, "vect_recog_dot_prod_pattern: detected: ");
- print_generic_expr (vect_dump, pattern_expr, TDF_SLIM);
+ print_gimple_stmt (vect_dump, pattern_stmt, 0, TDF_SLIM);
}
- return pattern_expr;
-}
+ /* We don't allow changing the order of the computation in the inner-loop
+ when doing outer-loop vectorization. */
+ if (nested_in_vect_loop_p (loop, last_stmt))
+ {
+ if (vect_print_dump_info (REPORT_DETAILS))
+ fprintf (vect_dump, "vect_recog_dot_prod_pattern: not allowed.");
+ return NULL;
+ }
+ return pattern_stmt;
+}
+
/* Function vect_recog_widen_mult_pattern
Try to find the following pattern:
WIDEN_MULT <a_t, b_t>
*/
-static tree
-vect_recog_widen_mult_pattern (tree last_stmt ATTRIBUTE_UNUSED,
- tree *type_in ATTRIBUTE_UNUSED,
- tree *type_out ATTRIBUTE_UNUSED)
+static gimple
+vect_recog_widen_mult_pattern (gimple last_stmt,
+ tree *type_in,
+ tree *type_out)
+{
+ gimple def_stmt0, def_stmt1;
+ tree oprnd0, oprnd1;
+ tree type, half_type0, half_type1;
+ gimple pattern_stmt;
+ tree vectype;
+ tree dummy;
+ tree var;
+ enum tree_code dummy_code;
+ int dummy_int;
+ VEC (tree, heap) *dummy_vec;
+
+ if (!is_gimple_assign (last_stmt))
+ return NULL;
+
+ type = gimple_expr_type (last_stmt);
+
+ /* Starting from LAST_STMT, follow the defs of its uses in search
+ of the above pattern. */
+
+ if (gimple_assign_rhs_code (last_stmt) != MULT_EXPR)
+ return NULL;
+
+ oprnd0 = gimple_assign_rhs1 (last_stmt);
+ oprnd1 = gimple_assign_rhs2 (last_stmt);
+ if (TYPE_MAIN_VARIANT (TREE_TYPE (oprnd0)) != TYPE_MAIN_VARIANT (type)
+ || TYPE_MAIN_VARIANT (TREE_TYPE (oprnd1)) != TYPE_MAIN_VARIANT (type))
+ return NULL;
+
+ /* Check argument 0 */
+ if (!widened_name_p (oprnd0, last_stmt, &half_type0, &def_stmt0))
+ return NULL;
+ oprnd0 = gimple_assign_rhs1 (def_stmt0);
+
+ /* Check argument 1 */
+ if (!widened_name_p (oprnd1, last_stmt, &half_type1, &def_stmt1))
+ return NULL;
+ oprnd1 = gimple_assign_rhs1 (def_stmt1);
+
+ if (TYPE_MAIN_VARIANT (half_type0) != TYPE_MAIN_VARIANT (half_type1))
+ return NULL;
+
+ /* Pattern detected. */
+ if (vect_print_dump_info (REPORT_DETAILS))
+ fprintf (vect_dump, "vect_recog_widen_mult_pattern: detected: ");
+
+ /* Check target support */
+ vectype = get_vectype_for_scalar_type (half_type0);
+ if (!vectype
+ || !supportable_widening_operation (WIDEN_MULT_EXPR, last_stmt, vectype,
+ &dummy, &dummy, &dummy_code,
+ &dummy_code, &dummy_int, &dummy_vec))
+ return NULL;
+
+ *type_in = vectype;
+ *type_out = NULL_TREE;
+
+ /* Pattern supported. Create a stmt to be used to replace the pattern: */
+ var = vect_recog_temp_ssa_var (type, NULL);
+ pattern_stmt = gimple_build_assign_with_ops (WIDEN_MULT_EXPR, var, oprnd0,
+ oprnd1);
+ SSA_NAME_DEF_STMT (var) = pattern_stmt;
+
+ if (vect_print_dump_info (REPORT_DETAILS))
+ print_gimple_stmt (vect_dump, pattern_stmt, 0, TDF_SLIM);
+
+ return pattern_stmt;
+}
+
+
+/* Function vect_recog_pow_pattern
+
+ Try to find the following pattern:
+
+ x = POW (y, N);
+
+ with POW being one of pow, powf, powi, powif and N being
+ either 2 or 0.5.
+
+ Input:
+
+ * LAST_STMT: A stmt from which the pattern search begins.
+
+ Output:
+
+ * TYPE_IN: The type of the input arguments to the pattern.
+
+ * TYPE_OUT: The type of the output of this pattern.
+
+ * Return value: A new stmt that will be used to replace the sequence of
+ stmts that constitute the pattern. In this case it will be:
+ x = x * x
+ or
+ x = sqrt (x)
+*/
+
+static gimple
+vect_recog_pow_pattern (gimple last_stmt, tree *type_in, tree *type_out)
{
- /* Yet to be implemented. */
+ tree type;
+ tree fn, base, exp = NULL;
+ gimple stmt;
+ tree var;
+
+ if (!is_gimple_call (last_stmt) || gimple_call_lhs (last_stmt) == NULL)
+ return NULL;
+
+ type = gimple_expr_type (last_stmt);
+
+ fn = gimple_call_fndecl (last_stmt);
+ switch (DECL_FUNCTION_CODE (fn))
+ {
+ case BUILT_IN_POWIF:
+ case BUILT_IN_POWI:
+ case BUILT_IN_POWF:
+ case BUILT_IN_POW:
+ base = gimple_call_arg (last_stmt, 0);
+ exp = gimple_call_arg (last_stmt, 1);
+ if (TREE_CODE (exp) != REAL_CST
+ && TREE_CODE (exp) != INTEGER_CST)
+ return NULL;
+ break;
+
+ default:
+ return NULL;
+ }
+
+ /* We now have a pow or powi builtin function call with a constant
+ exponent. */
+
+ *type_out = NULL_TREE;
+
+ /* Catch squaring. */
+ if ((host_integerp (exp, 0)
+ && tree_low_cst (exp, 0) == 2)
+ || (TREE_CODE (exp) == REAL_CST
+ && REAL_VALUES_EQUAL (TREE_REAL_CST (exp), dconst2)))
+ {
+ *type_in = TREE_TYPE (base);
+
+ var = vect_recog_temp_ssa_var (TREE_TYPE (base), NULL);
+ stmt = gimple_build_assign_with_ops (MULT_EXPR, var, base, base);
+ SSA_NAME_DEF_STMT (var) = stmt;
+ return stmt;
+ }
+
+ /* Catch square root. */
+ if (TREE_CODE (exp) == REAL_CST
+ && REAL_VALUES_EQUAL (TREE_REAL_CST (exp), dconsthalf))
+ {
+ tree newfn = mathfn_built_in (TREE_TYPE (base), BUILT_IN_SQRT);
+ *type_in = get_vectype_for_scalar_type (TREE_TYPE (base));
+ if (*type_in)
+ {
+ gimple stmt = gimple_build_call (newfn, 1, base);
+ if (vectorizable_function (stmt, *type_in, *type_in)
+ != NULL_TREE)
+ {
+ var = vect_recog_temp_ssa_var (TREE_TYPE (base), stmt);
+ gimple_call_set_lhs (stmt, var);
+ return stmt;
+ }
+ }
+ }
+
return NULL;
}
where type 'TYPE' is at least double the size of type 'type', i.e - we're
summing elements of type 'type' into an accumulator of type 'TYPE'. This is
- a sepcial case of a reduction computation.
+ a special case of a reduction computation.
Input:
* Return value: A new stmt that will be used to replace the sequence of
stmts that constitute the pattern. In this case it will be:
WIDEN_SUM <x_t, sum_0>
-*/
-static tree
-vect_recog_widen_sum_pattern (tree last_stmt, tree *type_in, tree *type_out)
+ Note: The widening-sum idiom is a widening reduction pattern that is
+ vectorized without preserving all the intermediate results. It
+ produces only N/2 (widened) results (by summing up pairs of
+ intermediate results) rather than all N results. Therefore, we
+ cannot allow this pattern when we want to get all the results and in
+ the correct order (as is the case when this computation is in an
+ inner-loop nested in an outer-loop that us being vectorized). */
+
+static gimple
+vect_recog_widen_sum_pattern (gimple last_stmt, tree *type_in, tree *type_out)
{
- tree stmt, expr;
+ gimple stmt;
tree oprnd0, oprnd1;
stmt_vec_info stmt_vinfo = vinfo_for_stmt (last_stmt);
tree type, half_type;
- tree pattern_expr;
+ gimple pattern_stmt;
+ loop_vec_info loop_info = STMT_VINFO_LOOP_VINFO (stmt_vinfo);
+ struct loop *loop = LOOP_VINFO_LOOP (loop_info);
+ tree var;
- if (TREE_CODE (last_stmt) != MODIFY_EXPR)
+ if (!is_gimple_assign (last_stmt))
return NULL;
- expr = TREE_OPERAND (last_stmt, 1);
- type = TREE_TYPE (expr);
+ type = gimple_expr_type (last_stmt);
/* Look for the following pattern
DX = (TYPE) X;
/* Starting from LAST_STMT, follow the defs of its uses in search
of the above pattern. */
- if (TREE_CODE (expr) != PLUS_EXPR)
+ if (gimple_assign_rhs_code (last_stmt) != PLUS_EXPR)
return NULL;
if (STMT_VINFO_DEF_TYPE (stmt_vinfo) != vect_reduction_def)
return NULL;
- oprnd0 = TREE_OPERAND (expr, 0);
- oprnd1 = TREE_OPERAND (expr, 1);
+ oprnd0 = gimple_assign_rhs1 (last_stmt);
+ oprnd1 = gimple_assign_rhs2 (last_stmt);
if (TYPE_MAIN_VARIANT (TREE_TYPE (oprnd0)) != TYPE_MAIN_VARIANT (type)
|| TYPE_MAIN_VARIANT (TREE_TYPE (oprnd1)) != TYPE_MAIN_VARIANT (type))
return NULL;
if (!widened_name_p (oprnd0, last_stmt, &half_type, &stmt))
return NULL;
- oprnd0 = TREE_OPERAND (TREE_OPERAND (stmt, 1), 0);
+ oprnd0 = gimple_assign_rhs1 (stmt);
*type_in = half_type;
*type_out = type;
/* Pattern detected. Create a stmt to be used to replace the pattern: */
- pattern_expr = build2 (WIDEN_SUM_EXPR, type, oprnd0, oprnd1);
+ var = vect_recog_temp_ssa_var (type, NULL);
+ pattern_stmt = gimple_build_assign_with_ops (WIDEN_SUM_EXPR, var,
+ oprnd0, oprnd1);
+ SSA_NAME_DEF_STMT (var) = pattern_stmt;
+
if (vect_print_dump_info (REPORT_DETAILS))
{
fprintf (vect_dump, "vect_recog_widen_sum_pattern: detected: ");
- print_generic_expr (vect_dump, pattern_expr, TDF_SLIM);
+ print_gimple_stmt (vect_dump, pattern_stmt, 0, TDF_SLIM);
+ }
+
+ /* We don't allow changing the order of the computation in the inner-loop
+ when doing outer-loop vectorization. */
+ if (nested_in_vect_loop_p (loop, last_stmt))
+ {
+ if (vect_print_dump_info (REPORT_DETAILS))
+ fprintf (vect_dump, "vect_recog_widen_sum_pattern: not allowed.");
+ return NULL;
}
- return pattern_expr;
+
+ return pattern_stmt;
}
If 'TYPE_OUT' is also returned by PATTERN_RECOG_FUNC, we check that it fits
to the available target pattern.
- This function also does some bookeeping, as explained in the documentation
+ This function also does some bookkeeping, as explained in the documentation
for vect_recog_pattern. */
static void
vect_pattern_recog_1 (
- tree (* vect_recog_func) (tree, tree *, tree *),
- block_stmt_iterator si)
+ gimple (* vect_recog_func) (gimple, tree *, tree *),
+ gimple_stmt_iterator si)
{
- tree stmt = bsi_stmt (si);
+ gimple stmt = gsi_stmt (si), pattern_stmt;
stmt_vec_info stmt_info = vinfo_for_stmt (stmt);
stmt_vec_info pattern_stmt_info;
loop_vec_info loop_vinfo = STMT_VINFO_LOOP_VINFO (stmt_info);
- tree pattern_expr;
tree pattern_vectype;
tree type_in, type_out;
- tree pattern_type;
enum tree_code code;
- tree var, var_name;
- stmt_ann_t ann;
- pattern_expr = (* vect_recog_func) (stmt, &type_in, &type_out);
- if (!pattern_expr)
+ pattern_stmt = (* vect_recog_func) (stmt, &type_in, &type_out);
+ if (!pattern_stmt)
return;
if (VECTOR_MODE_P (TYPE_MODE (type_in)))
}
else
{
- enum tree_code vec_mode;
+ enum machine_mode vec_mode;
enum insn_code icode;
optab optab;
/* Check target support */
pattern_vectype = get_vectype_for_scalar_type (type_in);
- optab = optab_for_tree_code (TREE_CODE (pattern_expr), pattern_vectype);
+ if (!pattern_vectype)
+ return;
+
+ if (is_gimple_assign (pattern_stmt))
+ code = gimple_assign_rhs_code (pattern_stmt);
+ else
+ {
+ gcc_assert (is_gimple_call (pattern_stmt));
+ code = CALL_EXPR;
+ }
+
+ optab = optab_for_tree_code (code, pattern_vectype, optab_default);
vec_mode = TYPE_MODE (pattern_vectype);
if (!optab
- || (icode = optab->handlers[(int) vec_mode].insn_code) ==
+ || (icode = optab_handler (optab, vec_mode)->insn_code) ==
CODE_FOR_nothing
|| (type_out
- && (insn_data[icode].operand[0].mode !=
- TYPE_MODE (get_vectype_for_scalar_type (type_out)))))
+ && (!get_vectype_for_scalar_type (type_out)
+ || (insn_data[icode].operand[0].mode !=
+ TYPE_MODE (get_vectype_for_scalar_type (type_out))))))
return;
}
if (vect_print_dump_info (REPORT_DETAILS))
{
fprintf (vect_dump, "pattern recognized: ");
- print_generic_expr (vect_dump, pattern_expr, TDF_SLIM);
+ print_gimple_stmt (vect_dump, pattern_stmt, 0, TDF_SLIM);
}
- /* Mark the stmts that are involved in the pattern,
- create a new stmt to express the pattern and insert it. */
- code = TREE_CODE (pattern_expr);
- pattern_type = TREE_TYPE (pattern_expr);
- var = create_tmp_var (pattern_type, "patt");
- add_referenced_tmp_var (var);
- var_name = make_ssa_name (var, NULL_TREE);
- pattern_expr = build2 (MODIFY_EXPR, void_type_node, var_name, pattern_expr);
- SSA_NAME_DEF_STMT (var_name) = pattern_expr;
- bsi_insert_before (&si, pattern_expr, BSI_SAME_STMT);
- ann = stmt_ann (pattern_expr);
- set_stmt_info ((tree_ann_t)ann, new_stmt_vec_info (pattern_expr, loop_vinfo));
- pattern_stmt_info = vinfo_for_stmt (pattern_expr);
+ /* Mark the stmts that are involved in the pattern. */
+ gsi_insert_before (&si, pattern_stmt, GSI_SAME_STMT);
+ set_vinfo_for_stmt (pattern_stmt,
+ new_stmt_vec_info (pattern_stmt, loop_vinfo));
+ pattern_stmt_info = vinfo_for_stmt (pattern_stmt);
STMT_VINFO_RELATED_STMT (pattern_stmt_info) = stmt;
STMT_VINFO_DEF_TYPE (pattern_stmt_info) = STMT_VINFO_DEF_TYPE (stmt_info);
STMT_VINFO_VECTYPE (pattern_stmt_info) = pattern_vectype;
STMT_VINFO_IN_PATTERN_P (stmt_info) = true;
- STMT_VINFO_RELATED_STMT (stmt_info) = pattern_expr;
+ STMT_VINFO_RELATED_STMT (stmt_info) = pattern_stmt;
return;
}
remain irrelevant unless used by stmts other than S4.
If vectorization succeeds, vect_transform_stmt will skip over {S1,S2,S3}
- (because they are marked as irrelevent). It will vectorize S6, and record
+ (because they are marked as irrelevant). It will vectorize S6, and record
a pointer to the new vector stmt VS6 both from S6 (as usual), and also
from S4. We do that so that when we get to vectorizing stmts that use the
def of S4 (like S5 that uses a_0), we'll know where to take the relevant
struct loop *loop = LOOP_VINFO_LOOP (loop_vinfo);
basic_block *bbs = LOOP_VINFO_BBS (loop_vinfo);
unsigned int nbbs = loop->num_nodes;
- block_stmt_iterator si;
- tree stmt;
+ gimple_stmt_iterator si;
+ gimple stmt;
unsigned int i, j;
- tree (* vect_recog_func_ptr) (tree, tree *, tree *);
+ gimple (* vect_recog_func_ptr) (gimple, tree *, tree *);
if (vect_print_dump_info (REPORT_DETAILS))
fprintf (vect_dump, "=== vect_pattern_recog ===");
for (i = 0; i < nbbs; i++)
{
basic_block bb = bbs[i];
- for (si = bsi_start (bb); !bsi_end_p (si); bsi_next (&si))
+ for (si = gsi_start_bb (bb); !gsi_end_p (si); gsi_next (&si))
{
- stmt = bsi_stmt (si);
+ stmt = gsi_stmt (si);
/* Scan over all generic vect_recog_xxx_pattern functions. */
for (j = 0; j < NUM_PATTERNS; j++)
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