yaxunl marked an inline comment as done.
yaxunl added a comment.
Updated summary.
================
Comment at: test/SemaOpenCL/to_addr_builtin.cl:25
@@ +24,3 @@
+ glob = to_global(con);
+#if __OPENCL_C_VERSION__ < CL_VERSION_2_0
+ // expected-error@-2{{'to_global' needs OpenCL version 2.0 or above}}
----------------
pxli168 wrote:
> But in Spec OpenCL V2.0 s6.13.9 the description for to_global is:
>
> > Returns a pointer that points to a region in the global address space if
> > to_global can cast ptr to the global address space. Otherwise it returns
> > NULL.
>
I think this is only for valid call expression. For constant pointer, it is an
invalid call expression due to s6.5.5, so an error of invalid argument should
be emitted.
If we allow passing constant pointer to this function, we violates s6.5.5.
http://reviews.llvm.org/D19932
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