search for: access_size

...;ve noticed with xen-unstable on my quad-core x dual-thread (that''s 8 processors to xen), the boot info spewed for all the C-state/P-state stuff quickly fills the xm dmesg buffer and I lose some of the early-in-boot lines. Do we really need to know "reg.{space_id,bit_width,bit_offset,access_size, address}" and all that other info? Even if so, is there a more compact way to print it? _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...rns the pc, bp, sp, // address, access type, access type and bug description, and the return // value of the function is 1. If no error occurred yet, returns 0. int __asan_get_report_data(void **pc, void **bp, void **sp, void **addr, int *is_write, size_t *access_size, char **bug_description); // Address/memory type from ASan's point of view. typedef enum { __ADDRESS_TYPE_UNKNOWN, __ADDRESS_TYPE_SHADOW_LOW, __ADDRESS_TYPE_SHADOW_GAP, __ADDRESS_TYPE_SHADOW_HIGH, __ADDRESS_TYPE_GLOBAL,...

...e (5) is aliased with all the above, and (3) is also aliased with (1). With this representation, the type based alias rules implementation becomes: given two memory accesses, align the pointer of one access to the other. If it can be done, they are not aliased. If yes, the use the same base+offset+access_size aliasing rule to check overlapping. For languages that have rules about access bounds of member arrays, the offset information can be replaced with offset + range. By default, the range is the size of the array type. David On Wed, Aug 16, 2017 at 11:59 AM, Ivan A. Kosarev via llvm-dev < llvm...

...> like <U, offset>. > > > > > With this representation, the type based alias rules implementation > becomes: given two memory accesses, align the pointer of one access to the > other. If it can be done, they are not aliased. If yes, the use the same > base+offset+access_size aliasing rule to check overlapping. > > > I'm not entirely sure what you mean by aligning pointers (and why aligning > them would mean they couldn't alias). Can you please explain? > I had a typo there. I meant 'if it can not be done, they are not aliased ...". By...

It's hard to say. What you've described sounds close to a neutral type system implemented in metadata. In particular, ". It also defines a set of language-neutral formal rules that LLVM codegen follows to determine whether a given pair of accesses are allowed to overlap by rules of the input language. " and "the base type followed by field descriptors" etc Despite the

Hello, The following patches are a solution to a problem we have encountered when using the Xen hypervisor: - Need Pxx/Cxx states to save on power consumption when using Xen (we do want those datacenters to consume less power!), - Also need to figure out the Turbo mode so that the scheduler can properly boost a core for CPU bound guests. In essence the Xen hypervisor requires that