* [PATCH] Fix value uninitialization in vn_reference_insert_pieces [PR102400]
@ 2021-09-23 1:23 Feng Xue OS
2021-09-23 8:35 ` Richard Biener
0 siblings, 1 reply; 2+ messages in thread
From: Feng Xue OS @ 2021-09-23 1:23 UTC (permalink / raw)
To: gcc-patches
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(+)
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] Fix value uninitialization in vn_reference_insert_pieces [PR102400]
2021-09-23 1:23 [PATCH] Fix value uninitialization in vn_reference_insert_pieces [PR102400] Feng Xue OS
@ 2021-09-23 8:35 ` Richard Biener
0 siblings, 0 replies; 2+ messages in thread
From: Richard Biener @ 2021-09-23 8:35 UTC (permalink / raw)
To: Feng Xue OS; +Cc: gcc-patches
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
>
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-09-23 1:23 [PATCH] Fix value uninitialization in vn_reference_insert_pieces [PR102400] Feng Xue OS
2021-09-23 8:35 ` Richard Biener
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