On 2025-07-14 03:02, Richard Biener wrote:
> On Fri, Jul 11, 2025 at 8:27 PM Siddhesh Poyarekar <siddh...@gotplt.org>
> wrote:
>>
>>
>> The test ends up writing a byte beyond bounds of the buffer, which gets
>>
>> trapped on some targets when the test is run with
>>
>> -fstack-protector-strong.
>>
>>
>>
>> testsuite/ChangeLog:
>>
>>
>>
>> * gcc.dg/vect/pr116125.c (mem_overlap): Reduce iteration count
>>
>> to 8.
>>
>>
>>
>> Signed-off-by: Siddhesh Poyarekar <siddh...@gotplt.org>
>>
>> ---
>>
>> OK for trunk and backport to gcc-15?
>>
>
>
> Can you instead make the buffers larger? We might otherwise no longer
>
> testing what we did.
>
Ack, I'll push this to master and backport to gcc-15 later in the week
then, if you don't object.
Thanks,
Sid
--->8---
The test ends up writing a byte beyond bounds of the buffer, which gets
trapped on some targets when the test is run with
-fstack-protector-strong.
testsuite/ChangeLog:
* gcc.dg/vect/pr116125.c (mem_overlap): Expand A to 10 members.
Signed-off-by: Siddhesh Poyarekar <siddh...@gotplt.org>
---
gcc/testsuite/gcc.dg/vect/pr116125.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/gcc/testsuite/gcc.dg/vect/pr116125.c
b/gcc/testsuite/gcc.dg/vect/pr116125.c
index eab9efdc061..526bb5bfaaa 100644
--- a/gcc/testsuite/gcc.dg/vect/pr116125.c
+++ b/gcc/testsuite/gcc.dg/vect/pr116125.c
@@ -17,12 +17,12 @@ main (void)
{
check_vect ();
- struct st a[9] = {};
+ struct st a[10] = {};
- // input a = 0, 0, 0, 0, 0, 0, 0, 0, 0
+ // input a = 0, 0, 0, 0, 0, 0, 0, 0, 0, 10
mem_overlap (&a[1], a);
- // output a = 0, 1, 2, 3, 4, 5, 6, 7, 8
+ // output a = 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
if (a[2].num == 2)
return 0;
else
--
2.50.1
