Patchwork PR 53528 c++/ C++11 Generalized Attribute support

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Submitter Andreas Schwab
Date Oct. 12, 2012, 5:09 p.m.
Message ID <m2vcefy5vg.fsf@igel.home>
Download mbox | patch
Permalink /patch/191164/
State New
Headers show

Comments

Andreas Schwab - Oct. 12, 2012, 5:09 p.m.
Dodji Seketeli <dodji@redhat.com> writes:

> diff --git a/gcc/testsuite/g++.dg/cpp0x/gen-attrs-52.C b/gcc/testsuite/g++.dg/cpp0x/gen-attrs-52.C
> new file mode 100644
> index 0000000..0f87fd4
> --- /dev/null
> +++ b/gcc/testsuite/g++.dg/cpp0x/gen-attrs-52.C
> @@ -0,0 +1,21 @@
> +// { dg-do compile { target c++11 } }
> +
> +struct A {int i;}  a [[gnu::aligned(16)]];
> +struct B {int i;} __attribute__((aligned(16))) b;
> +
> +int
> +main ()
> +{
> + A aa;
> + B bb;
> +
> + static_assert (sizeof (a) == 4, "sizeof (a) should be 4");
> + static_assert (sizeof (b) == 16, "sizeof (b) should be 16");
> + static_assert (sizeof (aa) == 4, "sizeof (aa) should be 4");
> + static_assert (sizeof (bb) == 16, "sizeof (bb) should be 16");
> +
> + static_assert (__alignof__  (a) == 16, "alignof (a) should be 16");
> + static_assert (__alignof__  (b) == 16, "alignof (b) should be 16");
> + static_assert (__alignof__  (aa) == 4, "alignof (aa) should be 4");
> + static_assert (__alignof__  (bb) == 16, "alignof (bb) should be 16");
> +}

This fails on m68k.

Andreas.

	* g++.dg/cpp0x/gen-attrs-52.C: Allow alignment of aa to be less
	than 4.
---
 gcc/testsuite/g++.dg/cpp0x/gen-attrs-52.C | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/gcc/testsuite/g++.dg/cpp0x/gen-attrs-52.C b/gcc/testsuite/g++.dg/cpp0x/gen-attrs-52.C
index 0f87fd4..08906aa 100644
--- a/gcc/testsuite/g++.dg/cpp0x/gen-attrs-52.C
+++ b/gcc/testsuite/g++.dg/cpp0x/gen-attrs-52.C
@@ -16,6 +16,6 @@  main ()
 
  static_assert (__alignof__  (a) == 16, "alignof (a) should be 16");
  static_assert (__alignof__  (b) == 16, "alignof (b) should be 16");
- static_assert (__alignof__  (aa) == 4, "alignof (aa) should be 4");
+ static_assert (__alignof__  (aa) <= 4, "alignof (aa) should be <=4");
  static_assert (__alignof__  (bb) == 16, "alignof (bb) should be 16");
 }