Commit Graph

2 Commits

Author SHA1 Message Date
Matt Arsenault bf5e3e4391 AMDGPU: Make 0 the private nullptr value
We can't actually pretend that 0 is valid for address space 0.
r295877 added a workaround to stop allocating user objects
there, so we can use 0 as the invalid pointer.

Some of the tests seemed to be using private as the non-0 null
test address space, so add copies using local to make sure
this is still stressed.

llvm-svn: 297659
2017-03-13 19:47:53 +00:00
Anastasia Stulova af0a7bbbe2 [OpenCL] Add missing address spaces in IR generation of blocks
Modify ObjC blocks impl wrt address spaces as follows:

- keep default private address space for blocks generated
as local variables (with captures);

- add global address space for global block literals (no captures);

- make the block invoke function and enqueue_kernel prototype with
the generic AS block pointer parameter to accommodate both 
private and global AS cases from above;

- add block handling into default AS because it's implemented as
a special pointer type (BlockPointer) in the frontend and therefore
it is used as a pointer everywhere. This is also needed to accommodate
both private and global AS blocks for the two cases above.

- removes ObjC RT specific symbols (NSConcreteStackBlock and
NSConcreteGlobalBlock) in the OpenCL mode.

Review: https://reviews.llvm.org/D28814
llvm-svn: 293286
2017-01-27 15:11:34 +00:00