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Improve SLP dump and graph

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The following notes which lanes are considered live and adds an overload
to produce a graphviz graph for multiple entries into an SLP graph.

	* tree-vect-slp.cc (vect_print_slp_tree): Mark live lanes.
	(dot_slp_tree): New overload for multiple entries.
This commit is contained in:
Richard Biener 2024-03-27 10:53:11 +01:00
parent 9b5c0be59d
commit bf33fe90e7
1 changed files with 20 additions and 1 deletions
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21
gcc/tree-vect-slp.cc
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@ -2759,7 +2759,9 @@ vect_print_slp_tree (dump_flags_t dump_kind, dump_location_t loc,
}
if (SLP_TREE_SCALAR_STMTS (node).exists ())
FOR_EACH_VEC_ELT (SLP_TREE_SCALAR_STMTS (node), i, stmt_info)
dump_printf_loc (metadata, user_loc, "\tstmt %u %G", i, stmt_info->stmt);
dump_printf_loc (metadata, user_loc, "\t%sstmt %u %G",
STMT_VINFO_LIVE_P (stmt_info) ? "[l] " : "",
i, stmt_info->stmt);
else
{
dump_printf_loc (metadata, user_loc, "\t{ ");
@ -2840,6 +2842,23 @@ dot_slp_tree (const char *fname, slp_tree node)
fclose (f);
}
DEBUG_FUNCTION void
dot_slp_tree (const char *fname, const vec<slp_instance> &slp_instances)
{
FILE *f = fopen (fname, "w");
fprintf (f, "digraph {\n");
fflush (f);
{
debug_dump_context ctx (f);
hash_set<slp_tree> visited;
for (auto inst : slp_instances)
dot_slp_tree (f, SLP_INSTANCE_TREE (inst), visited);
}
fflush (f);
fprintf (f, "}\n");
fclose (f);
}
/* Dump a slp tree NODE using flags specified in DUMP_KIND. */
static void