* [PATCH] Fix build of --enable-gather-detailed-mem-stats (PR bootstrap/81864).
@ 2017-08-17 14:18 Martin Liška
2017-08-17 14:56 ` Richard Biener
0 siblings, 1 reply; 2+ messages in thread
From: Martin Liška @ 2017-08-17 14:18 UTC (permalink / raw)
To: gcc-patches; +Cc: hjl.tools, andrewm.roberts
[-- Attachment #1: Type: text/plain, Size: 650 bytes --]
Hello.
As described in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81864#c5 we should not
introduce a new static hash_table variable in order to be sure mem_alloc_descriptors
are initialized earlier.
Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
Ready to be installed?
Martin
gcc/ChangeLog:
2017-08-17 Martin Liska <mliska@suse.cz>
PR bootstrap/81864
* tree-loop-distribution.c (ddrs_table): Change type to pointer
type.
(get_data_dependence): Use it as pointer type.
(distribute_loop): Likewise.
---
gcc/tree-loop-distribution.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
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diff --git a/gcc/tree-loop-distribution.c b/gcc/tree-loop-distribution.c
index b1b293419b0..26b8b9a3751 100644
--- a/gcc/tree-loop-distribution.c
+++ b/gcc/tree-loop-distribution.c
@@ -157,8 +157,7 @@ static vec<data_reference_p> datarefs_vec;
#define DR_INDEX(dr) ((uintptr_t) (dr)->aux)
/* Hash table for data dependence relation in the loop to be distributed. */
-static hash_table<ddr_hasher> ddrs_table (389);
-
+static hash_table<ddr_hasher> *ddrs_table;
/* A Reduced Dependence Graph (RDG) vertex representing a statement. */
struct rdg_vertex
@@ -1183,7 +1182,7 @@ get_data_dependence (struct graph *rdg, data_reference_p a, data_reference_p b)
<= rdg_vertex_for_stmt (rdg, DR_STMT (b)));
ent.a = a;
ent.b = b;
- slot = ddrs_table.find_slot (&ent, INSERT);
+ slot = ddrs_table->find_slot (&ent, INSERT);
if (*slot == NULL)
{
ddr = initialize_data_dependence_relation (a, b, loop_nest);
@@ -2366,6 +2365,7 @@ static int
distribute_loop (struct loop *loop, vec<gimple *> stmts,
control_dependences *cd, int *nb_calls, bool *destroy_p)
{
+ ddrs_table = new hash_table<ddr_hasher> (389);
struct graph *rdg;
partition *partition;
bool any_builtin;
@@ -2377,6 +2377,7 @@ distribute_loop (struct loop *loop, vec<gimple *> stmts,
if (!find_loop_nest (loop, &loop_nest))
{
loop_nest.release ();
+ delete ddrs_table;
return 0;
}
@@ -2391,6 +2392,7 @@ distribute_loop (struct loop *loop, vec<gimple *> stmts,
loop_nest.release ();
free_data_refs (datarefs_vec);
+ delete ddrs_table;
return 0;
}
@@ -2404,6 +2406,7 @@ distribute_loop (struct loop *loop, vec<gimple *> stmts,
free_rdg (rdg);
loop_nest.release ();
free_data_refs (datarefs_vec);
+ delete ddrs_table;
return 0;
}
@@ -2542,13 +2545,13 @@ distribute_loop (struct loop *loop, vec<gimple *> stmts,
ldist_done:
loop_nest.release ();
free_data_refs (datarefs_vec);
- for (hash_table<ddr_hasher>::iterator iter = ddrs_table.begin ();
- iter != ddrs_table.end (); ++iter)
+ for (hash_table<ddr_hasher>::iterator iter = ddrs_table->begin ();
+ iter != ddrs_table->end (); ++iter)
{
free_dependence_relation (*iter);
*iter = NULL;
}
- ddrs_table.empty ();
+ delete ddrs_table;
FOR_EACH_VEC_ELT (partitions, i, partition)
partition_free (partition);
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] Fix build of --enable-gather-detailed-mem-stats (PR bootstrap/81864).
2017-08-17 14:18 [PATCH] Fix build of --enable-gather-detailed-mem-stats (PR bootstrap/81864) Martin Liška
@ 2017-08-17 14:56 ` Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2017-08-17 14:56 UTC (permalink / raw)
To: Martin Liška; +Cc: GCC Patches, H. J. Lu, andrewm.roberts
On Thu, Aug 17, 2017 at 3:43 PM, Martin Liška <mliska@suse.cz> wrote:
> Hello.
>
> As described in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81864#c5 we
> should not
> introduce a new static hash_table variable in order to be sure
> mem_alloc_descriptors
> are initialized earlier.
>
>
> Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
>
> Ready to be installed?
Ok.
Richard.
> Martin
>
>
> gcc/ChangeLog:
>
> 2017-08-17 Martin Liska <mliska@suse.cz>
>
> PR bootstrap/81864
> * tree-loop-distribution.c (ddrs_table): Change type to pointer
> type.
> (get_data_dependence): Use it as pointer type.
> (distribute_loop): Likewise.
> ---
> gcc/tree-loop-distribution.c | 15 +++++++++------
> 1 file changed, 9 insertions(+), 6 deletions(-)
>
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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