On Fri, 7 Apr 2017, Rainer Orth wrote:
> Hi Richard,
>
> >> > Any suggestion how to mitigate that? Possible solution includes
> >> > adding { target { ! ... } } to dg-do run.
> >>
> >> No idea. However, according to gcc-testresults there are other
> >> failures: s390-ibm-inux-gnu and s390x-ibm-linux-gnu so far.
> >>
> >> This might argue against just excluding a random list of failing targets.
> >
> > Hmm. Does using __BIGGEST_ALIGNMENT__, thus
> >
> > int
> > main()
> > {
> > alignas(__BIGGEST_ALIGNMENT__) B b[3];
> > ...
> >
> > work for you?
>
> it does: the test now PASSes on sparc-sun-solaris2.12 and continues to
> do so in i386-pc-solaris2.12, both 32 and 64-bit.
Tested on x86_64-unknwon-linux-gnu, applied.
Richard.
2017-04-07 Richard Biener <rguent...@suse.de>
PR tree-optimization/80334
* g++.dg/torture/pr80334.C: Use __BIGGEST_ALIGNMENT__ for
alignas on stack.
Index: gcc/testsuite/g++.dg/torture/pr80334.C
===================================================================
--- gcc/testsuite/g++.dg/torture/pr80334.C (revision 246752)
+++ gcc/testsuite/g++.dg/torture/pr80334.C (working copy)
@@ -8,7 +8,7 @@ char x;
int
main()
{
- alignas(16) B b[3];
+ alignas(__BIGGEST_ALIGNMENT__) B b[3];
for (int i = 0; i < 3; i++) b[i].unpacked.c = 'a' + i;
for (int i = 0; i < 3; i++)
{
