An update is attached here! Thanks, Anastasia
-----Original Message----- From: Pekka Jääskeläinen [mailto:[email protected]] Sent: 12 November 2014 09:11 To: Anastasia Stulova; [email protected] Subject: Re: [OpenCL] CL2.0 restricts coversions of pointers to different address spaces Hi, Could the two bool isAddressSpaceOverlapping() methods share code somehow? Otherwise LGTM (but I'm still learning the Clang code base!). On 11/11/2014 08:13 PM, Anastasia Stulova wrote: > Hello, > > In this patch I added restrictions for conversions of pointers to > different address spaces as explained below. > > OpenCLv2.0 C spec s6.5 adds __generic (unnamed) address space to be > used as a place holder in case an address space is not known > statically or multiple are intended to be used with the same fragment of code. > > All named address spaces (that existed in the previous OpenCL > standards) except for __constant are subset of __generic one. > Conversions between pointers of different address spaces are regulated by rules in s6.5.5 as follows: > > -The named address spaces ( __global, __local, and __private) can be > converted to __generic implicitly. Generic -> named can only be done > with an explicit cast. > > -Conversions between pointers of named address spaces are not allowed. > > -A pointer to the __constant address space can only be converted to a > pointer to the __constant address space (either by an implicit cast > or by an explicit one). > > This patch depends on the change submitted previously: > > https://www.mail-archive.com/[email protected]/msg109232.html > > Thanks, > > Anastasia > > > > _______________________________________________ > cfe-commits mailing list > [email protected] > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-commits > -- Pekka
address_space_coversions_v1.patch
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