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Author SHA1 Message Date
Yaxun Liu a1a87adf59 PR19957: [OpenCL] Incorrectly accepts implicit address space conversion with ternary operator. 
Generates addrspacecast instead of bitcast for ternary operator when necessary, and diagnose ternary operator with incompatible second and third operands.

https://llvm.org/bugs/show_bug.cgi?id=19957

Differential Revision: http://reviews.llvm.org/D17412

llvm-svn: 266111
 2016-04-12 19:43:36 +00:00
Anastasia Stulova 5d8ad8a7b8 [OpenCL] Implemented restrictions for pointer conversions specified in OpenCL v2.0. 
OpenCL v2.0 s6.5.5 restricts conversion of pointers to different address spaces:
- the named address spaces (__global, __local, and __private) => __generic - implicitly converted;
- __generic => named - with an explicit cast;
- named <=> named - disallowed;
- __constant <=> any other - disallowed.

llvm-svn: 222834
 2014-11-26 15:36:41 +00:00