On Fri, 14 Nov 2014, Jakub Jelinek wrote: > On Fri, Nov 14, 2014 at 09:46:14AM +0300, Yury Gribov wrote: > > Hi all, > > > > This patch fixes https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63802 by only > > limiting minimal type alignment with BIGGEST_ALIGNMENT for types with no > > __attribute__((aligned)). > > > > Bootstrapped and regtested on x64. Ok for trunk? > > The function is primarily used by the C FE for _Alignas, and I have no idea > if such a change is desirable for that very much user visible case. Joseph?
If it is true that a type satisfying TYPE_USER_ALIGN will never be allocated at an address less-aligned than its TYPE_ALIGN, even if that's greater than BIGGEST_ALIGNMENT, then the change seems correct for C11 _Alignof. -- Joseph S. Myers jos...@codesourcery.com
