diff mbox series

Fix value uninitialization in vn_reference_insert_pieces [PR102400]

Message ID SN6PR01MB49588BA606C071605AD39F72F7A39@SN6PR01MB4958.prod.exchangelabs.com
State New
Headers show
Series Fix value uninitialization in vn_reference_insert_pieces [PR102400] | expand

Commit Message

Feng Xue OS Sept. 23, 2021, 1:23 a.m. UTC 
Bootstrapped/regtested on x86_64-linux.

Thanks,
Feng
---
2021-09-23  Feng Xue  <fxue@os.amperecomputing.com>

gcc/ChangeLog
	PR tree-optimization/102400
        * tree-ssa-sccvn.c (vn_reference_insert_pieces): Initialize
	result_vdef to zero value.
---
 gcc/tree-ssa-sccvn.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Richard Biener Sept. 23, 2021, 8:35 a.m. UTC | #1 
On Thu, Sep 23, 2021 at 3:24 AM Feng Xue OS via Gcc-patches
<gcc-patches@gcc.gnu.org> wrote:
>
> Bootstrapped/regtested on x86_64-linux.

OK for all affected branches.

Thanks,
Richard.

> Thanks,
> Feng
> ---
> 2021-09-23  Feng Xue  <fxue@os.amperecomputing.com>
>
> gcc/ChangeLog
>         PR tree-optimization/102400
>         * tree-ssa-sccvn.c (vn_reference_insert_pieces): Initialize
>         result_vdef to zero value.
> ---
>  gcc/tree-ssa-sccvn.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c
> index a901f51a025..e8b1c39184d 100644
> --- a/gcc/tree-ssa-sccvn.c
> +++ b/gcc/tree-ssa-sccvn.c
> @@ -3811,6 +3811,7 @@ vn_reference_insert_pieces (tree vuse, alias_set_type set,
>    if (result && TREE_CODE (result) == SSA_NAME)
>      result = SSA_VAL (result);
>    vr1->result = result;
> +  vr1->result_vdef = NULL_TREE;
>
>    slot = valid_info->references->find_slot_with_hash (vr1, vr1->hashcode,
>                                                       INSERT);
> --
> 2.17.1
>
diff mbox series

Patch

diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c
index a901f51a025..e8b1c39184d 100644
--- a/gcc/tree-ssa-sccvn.c
+++ b/gcc/tree-ssa-sccvn.c
@@ -3811,6 +3811,7 @@  vn_reference_insert_pieces (tree vuse, alias_set_type set,
   if (result && TREE_CODE (result) == SSA_NAME)
     result = SSA_VAL (result);
   vr1->result = result;
+  vr1->result_vdef = NULL_TREE;
 
   slot = valid_info->references->find_slot_with_hash (vr1, vr1->hashcode,
 						      INSERT);