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[35/46] Alter interfaces within vect_pattern_recog 

vect_pattern_recog_1 took a gimple_stmt_iterator as argument, but was
only interested in the gsi_stmt, not anything else.  This patch makes
the associated routines operate directly on stmt_vec_infos.

2018-07-31  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* tree-vect-patterns.c (vect_mark_pattern_stmts): Take the
	original stmt as a stmt_vec_info rather than a gimple stmt.
	(vect_pattern_recog_1): Take the statement directly as a
	stmt_vec_info, rather than via a gimple_stmt_iterator.
	Update call to vect_mark_pattern_stmts.
	(vect_pattern_recog): Update calls accordingly.

From-SVN: r263150
This commit is contained in:
Richard Sandiford 2018-07-31 14:25:43 +00:00 committed by Richard Sandiford
parent e4057a3920
commit cef6cac8bc
2 changed files with 37 additions and 23 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2018-07-31 Richard Sandiford <richard.sandiford@arm.com>
* tree-vect-patterns.c (vect_mark_pattern_stmts): Take the
original stmt as a stmt_vec_info rather than a gimple stmt.
(vect_pattern_recog_1): Take the statement directly as a
stmt_vec_info, rather than via a gimple_stmt_iterator.
Update call to vect_mark_pattern_stmts.
(vect_pattern_recog): Update calls accordingly.
2018-07-31 Richard Sandiford <richard.sandiford@arm.com>
* tree-vectorizer.h (vect_get_vec_defs_for_stmt_copy)

51
gcc/tree-vect-patterns.c
View File

@ -4720,29 +4720,29 @@ const unsigned int NUM_PATTERNS = ARRAY_SIZE (vect_vect_recog_func_ptrs);
/* Mark statements that are involved in a pattern. */
static inline void
vect_mark_pattern_stmts (gimple *orig_stmt, gimple *pattern_stmt,
vect_mark_pattern_stmts (stmt_vec_info orig_stmt_info, gimple *pattern_stmt,
tree pattern_vectype)
{
stmt_vec_info orig_stmt_info = vinfo_for_stmt (orig_stmt);
gimple *def_seq = STMT_VINFO_PATTERN_DEF_SEQ (orig_stmt_info);
bool old_pattern_p = is_pattern_stmt_p (orig_stmt_info);
if (old_pattern_p)
gimple *orig_pattern_stmt = NULL;
if (is_pattern_stmt_p (orig_stmt_info))
{
/* We're replacing a statement in an existing pattern definition
sequence. */
orig_pattern_stmt = orig_stmt_info->stmt;
if (dump_enabled_p ())
{
dump_printf_loc (MSG_NOTE, vect_location,
"replacing earlier pattern ");
dump_gimple_stmt (MSG_NOTE, TDF_SLIM, orig_stmt, 0);
dump_gimple_stmt (MSG_NOTE, TDF_SLIM, orig_pattern_stmt, 0);
}
/* To keep the book-keeping simple, just swap the lhs of the
old and new statements, so that the old one has a valid but
unused lhs. */
tree old_lhs = gimple_get_lhs (orig_stmt);
gimple_set_lhs (orig_stmt, gimple_get_lhs (pattern_stmt));
tree old_lhs = gimple_get_lhs (orig_pattern_stmt);
gimple_set_lhs (orig_pattern_stmt, gimple_get_lhs (pattern_stmt));
gimple_set_lhs (pattern_stmt, old_lhs);
if (dump_enabled_p ())
@ -4755,7 +4755,8 @@ vect_mark_pattern_stmts (gimple *orig_stmt, gimple *pattern_stmt,
orig_stmt_info = STMT_VINFO_RELATED_STMT (orig_stmt_info);
/* We shouldn't be replacing the main pattern statement. */
gcc_assert (STMT_VINFO_RELATED_STMT (orig_stmt_info) != orig_stmt);
gcc_assert (STMT_VINFO_RELATED_STMT (orig_stmt_info)->stmt
!= orig_pattern_stmt);
}
if (def_seq)
@ -4763,13 +4764,14 @@ vect_mark_pattern_stmts (gimple *orig_stmt, gimple *pattern_stmt,
!gsi_end_p (si); gsi_next (&si))
vect_init_pattern_stmt (gsi_stmt (si), orig_stmt_info, pattern_vectype);
if (old_pattern_p)
if (orig_pattern_stmt)
{
vect_init_pattern_stmt (pattern_stmt, orig_stmt_info, pattern_vectype);
/* Insert all the new pattern statements before the original one. */
gimple_seq *orig_def_seq = &STMT_VINFO_PATTERN_DEF_SEQ (orig_stmt_info);
gimple_stmt_iterator gsi = gsi_for_stmt (orig_stmt, orig_def_seq);
gimple_stmt_iterator gsi = gsi_for_stmt (orig_pattern_stmt,
orig_def_seq);
gsi_insert_seq_before_without_update (&gsi, def_seq, GSI_SAME_STMT);
gsi_insert_before_without_update (&gsi, pattern_stmt, GSI_SAME_STMT);
@ -4785,12 +4787,12 @@ vect_mark_pattern_stmts (gimple *orig_stmt, gimple *pattern_stmt,
Input:
PATTERN_RECOG_FUNC: A pointer to a function that detects a certain
computation pattern.
STMT: A stmt from which the pattern search should start.
STMT_INFO: A stmt from which the pattern search should start.
If PATTERN_RECOG_FUNC successfully detected the pattern, it creates
a sequence of statements that has the same functionality and can be
used to replace STMT. It returns the last statement in the sequence
and adds any earlier statements to STMT's STMT_VINFO_PATTERN_DEF_SEQ.
used to replace STMT_INFO. It returns the last statement in the sequence
and adds any earlier statements to STMT_INFO's STMT_VINFO_PATTERN_DEF_SEQ.
PATTERN_RECOG_FUNC also sets *TYPE_OUT to the vector type of the final
statement, having first checked that the target supports the new operation
in that type.
@ -4799,10 +4801,10 @@ vect_mark_pattern_stmts (gimple *orig_stmt, gimple *pattern_stmt,
for vect_recog_pattern. */
static void
vect_pattern_recog_1 (vect_recog_func *recog_func, gimple_stmt_iterator si)
vect_pattern_recog_1 (vect_recog_func *recog_func, stmt_vec_info stmt_info)
{
gimple *stmt = gsi_stmt (si), *pattern_stmt;
stmt_vec_info stmt_info;
vec_info *vinfo = stmt_info->vinfo;
gimple *pattern_stmt;
loop_vec_info loop_vinfo;
tree pattern_vectype;
@ -4810,13 +4812,12 @@ vect_pattern_recog_1 (vect_recog_func *recog_func, gimple_stmt_iterator si)
leave the original statement alone, since the first match wins.
Instead try to match against the definition statements that feed
the main pattern statement. */
stmt_info = vinfo_for_stmt (stmt);
if (STMT_VINFO_IN_PATTERN_P (stmt_info))
{
gimple_stmt_iterator gsi;
for (gsi = gsi_start (STMT_VINFO_PATTERN_DEF_SEQ (stmt_info));
!gsi_end_p (gsi); gsi_next (&gsi))
vect_pattern_recog_1 (recog_func, gsi);
vect_pattern_recog_1 (recog_func, vinfo->lookup_stmt (gsi_stmt (gsi)));
return;
}
@ -4841,7 +4842,7 @@ vect_pattern_recog_1 (vect_recog_func *recog_func, gimple_stmt_iterator si)
}
/* Mark the stmts that are involved in the pattern. */
vect_mark_pattern_stmts (stmt, pattern_stmt, pattern_vectype);
vect_mark_pattern_stmts (stmt_info, pattern_stmt, pattern_vectype);
/* Patterns cannot be vectorized using SLP, because they change the order of
computation. */
@ -4957,9 +4958,13 @@ vect_pattern_recog (vec_info *vinfo)
{
basic_block bb = bbs[i];
for (si = gsi_start_bb (bb); !gsi_end_p (si); gsi_next (&si))
/* Scan over all generic vect_recog_xxx_pattern functions. */
for (j = 0; j < NUM_PATTERNS; j++)
vect_pattern_recog_1 (&vect_vect_recog_func_ptrs[j], si);
{
stmt_vec_info stmt_info = vinfo->lookup_stmt (gsi_stmt (si));
/* Scan over all generic vect_recog_xxx_pattern functions. */
for (j = 0; j < NUM_PATTERNS; j++)
vect_pattern_recog_1 (&vect_vect_recog_func_ptrs[j],
stmt_info);
}
}
}
else
@ -4975,7 +4980,7 @@ vect_pattern_recog (vec_info *vinfo)
/* Scan over all generic vect_recog_xxx_pattern functions. */
for (j = 0; j < NUM_PATTERNS; j++)
vect_pattern_recog_1 (&vect_vect_recog_func_ptrs[j], si);
vect_pattern_recog_1 (&vect_vect_recog_func_ptrs[j], stmt_info);
}
}
}