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lto-streamer-out.c (DFS::sccstack): Turn into auto-vec.

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* lto-streamer-out.c (DFS::sccstack): Turn into auto-vec.
	Preallocate for 32 entries.
	(DFS::worklist): Likewise.
	(DFS::DFS): Do not initialize sccstack and worklist.
	(DFS::~DFS): Do not release sccstack.

From-SVN: r278498
This commit is contained in:
Jan Hubicka 2019-11-20 15:10:41 +01:00 • committed by Jan Hubicka
parent bcb4b4b4ba
commit 17b95f0ef0
2 changed files with 10 additions and 6 deletions
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8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2019-11-20 Jan Hubicka <jh@suse.cz>
* lto-streamer-out.c (DFS::sccstack): Turn into auto-vec.
Preallocate for 32 entries.
(DFS::worklist): Likewise.
(DFS::DFS): Do not initialize sccstack and worklist.
(DFS::~DFS): Do not release sccstack.
2019-11-20 Segher Boessenkool <segher@kernel.crashing.org>
PR target/92573

8
gcc/lto-streamer-out.c
View file

@ -514,7 +514,7 @@ public:
tree t;
hashval_t hash;
};
vec<scc_entry> sccstack;
auto_vec<scc_entry,32> sccstack;
private:
struct sccs
@ -544,7 +544,7 @@ private:
bool ref_p, bool this_ref_p);
hash_map<tree, sccs *> sccstate;
vec<worklist> worklist_vec;
auto_vec<worklist, 32> worklist_vec;
struct obstack sccstate_obstack;
};
@ -558,9 +558,7 @@ DFS::DFS (struct output_block *ob, tree expr, bool ref_p, bool this_ref_p,
bool single_p)
{
unsigned int next_dfs_num = 1;
sccstack.create (0);
gcc_obstack_init (&sccstate_obstack);
worklist_vec = vNULL;
DFS_write_tree (ob, NULL, expr, ref_p, this_ref_p);
while (!worklist_vec.is_empty ())
{
@ -735,12 +733,10 @@ DFS::DFS (struct output_block *ob, tree expr, bool ref_p, bool this_ref_p,
from_state->low = MIN (cstate->dfsnum, from_state->low);
worklist_vec.pop ();
}
worklist_vec.release ();
}
DFS::~DFS ()
{
sccstack.release ();
obstack_free (&sccstate_obstack, NULL);
}