Re: [PATCH] Re-work get_object_alignment (again)

2012-07-20 Thread Richard Guenther
On Thu, 19 Jul 2012, Markus Trippelsdorf wrote: > On 2012.07.17 at 15:10 +0200, Richard Guenther wrote: > > Comments welcome, of course. > > This patch apparently miscompiles the Linux kernel, which just > hangs during early boot: > > ... > SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0,

Re: [PATCH] Re-work get_object_alignment (again)

2012-07-19 Thread Markus Trippelsdorf
On 2012.07.17 at 15:10 +0200, Richard Guenther wrote: > Comments welcome, of course. This patch apparently miscompiles the Linux kernel, which just hangs during early boot: ... SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 Hierarchical RCU implementation. NR_IRQS:4352 nr

Re: [PATCH] Re-work get_object_alignment (again)

2012-07-18 Thread Eric Botcazou
> Now, back to PR53970, where #pragma pack() is used to pack a > struct. With #pragma pack() no part of the type or field-decls > have a hint that packing took place (well, their align information > tell you), which means the vectorizers use of contains_packed_reference > is not conservative enoug