diff mbox series

c++: Make g++.dg/opt/pr110879.C require C++11 [PR110879]

Message ID 20231123105527.2347252-1-jwakely@redhat.com
State New
Headers show
Series c++: Make g++.dg/opt/pr110879.C require C++11 [PR110879] | expand

Commit Message

Jonathan Wakely Nov. 23, 2023, 10:54 a.m. UTC 
Jakub noted in the PR that this test fails for -std=c++98.

Tested x86_64-linux.

OK for trunk?

-- >8 --

The _M_realloc_insert member does not have the trivial relocation
optimization for C++98, which seems to be why the _M_end_of_storage
member does not get optimized away. Make this test unsupported for
C++98.

gcc/testsuite/ChangeLog:

	PR libstdc++/110879
	* g++.dg/opt/pr110879.C: Require C++11 or later.
---
 gcc/testsuite/g++.dg/opt/pr110879.C | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Jakub Jelinek Nov. 23, 2023, 10:57 a.m. UTC | #1 
On Thu, Nov 23, 2023 at 10:54:56AM +0000, Jonathan Wakely wrote:
> Jakub noted in the PR that this test fails for -std=c++98.
> 
> Tested x86_64-linux.
> 
> OK for trunk?
> 
> -- >8 --
> 
> The _M_realloc_insert member does not have the trivial relocation
> optimization for C++98, which seems to be why the _M_end_of_storage
> member does not get optimized away. Make this test unsupported for
> C++98.
> 
> gcc/testsuite/ChangeLog:
> 
> 	PR libstdc++/110879
> 	* g++.dg/opt/pr110879.C: Require C++11 or later.

Ok, thanks.

> diff --git a/gcc/testsuite/g++.dg/opt/pr110879.C b/gcc/testsuite/g++.dg/opt/pr110879.C
> index 7f0a0a80b8a..57556605a51 100644
> --- a/gcc/testsuite/g++.dg/opt/pr110879.C
> +++ b/gcc/testsuite/g++.dg/opt/pr110879.C
> @@ -1,4 +1,4 @@
> -// { dg-do compile }
> +// { dg-do compile { target c++11 } }
>  // { dg-options "-O3 -fdump-tree-optimized" }
>  
>  #include <vector>
> -- 
> 2.42.0

	Jakub
diff mbox series

Patch

diff --git a/gcc/testsuite/g++.dg/opt/pr110879.C b/gcc/testsuite/g++.dg/opt/pr110879.C
index 7f0a0a80b8a..57556605a51 100644
--- a/gcc/testsuite/g++.dg/opt/pr110879.C
+++ b/gcc/testsuite/g++.dg/opt/pr110879.C
@@ -1,4 +1,4 @@ 
-// { dg-do compile }
+// { dg-do compile { target c++11 } }
 // { dg-options "-O3 -fdump-tree-optimized" }
 
 #include <vector>