[gcc r14-9041] Add -Wstrict-aliasing to vector-struct-1.C testcase

[Andrew Pinski <pinskia@gcc.gnu.org>]

https://gcc.gnu.org/g:cd503b0616462445381a8232fb753239d319af76

commit r14-9041-gcd503b0616462445381a8232fb753239d319af76
Author: Andrew Pinski <quic_apinski@quicinc.com>
Date:   Fri Feb 16 13:26:30 2024 -0800

    Add -Wstrict-aliasing to vector-struct-1.C testcase
    
    As noticed by Marek Polacek in https://gcc.gnu.org/pipermail/gcc-patches/2024-February/645836.html,
    this testcase was not failing before without -Wstrict-aliasing so let's add that option.
    
    Committed as obvious after testing to make sure the test is now testing with `-Wstrict-aliasing` and `-flto`.
    
    gcc/testsuite/ChangeLog:
    
            * g++.dg/torture/vector-struct-1.C: Add -Wstrict-aliasing.
    
    Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>

Diff:
---
 gcc/testsuite/g++.dg/torture/vector-struct-1.C | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/testsuite/g++.dg/torture/vector-struct-1.C b/gcc/testsuite/g++.dg/torture/vector-struct-1.C
index e2747417e2d5..969a801e6807 100644
--- a/gcc/testsuite/g++.dg/torture/vector-struct-1.C
+++ b/gcc/testsuite/g++.dg/torture/vector-struct-1.C
@@ -1,3 +1,4 @@
+/* { dg-options "-Wstrict-aliasing" } */
 /* PR c++/97990 */
 /* This used to crash with lto and strict aliasing enabled as the
    vector type variant still had TYPE_ALIAS_SET set on it. */