Commit Graph

2 Commits

Author SHA1 Message Date
Daniel Stone 3d21fa56f5 libclc: Make all built-ins overloadable
The SPIR spec states that all OpenCL built-in functions should be
overloadable and mangled, to ensure consistency.

Add the overload attribute to functions which were missing them:
work dimensions, memory barriers and fences, and events.

Reviewed By: tstellar, jenatali

Differential Revision: https://reviews.llvm.org/D82078
2020-08-17 13:55:48 -07:00
Jan Vesely 999b1d9426 amdgcn: rewrite barrier() using fence and clang __builtin_amdgcn_s_barrier
Specs require using fences when barrier() is invoked:
"The barrier function will either flush any variables stored in local memory
or queue a memory fence to ensure correct ordering of memory operations to local memory."
and
"The barrier function will queue a memory fence to ensure correct ordering
of memory operations to global memory."

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-by: Aaron Watry <awatry@gmail.com>
Tested-by: Aaron Watry <awatry@gmail.com>
llvm-svn: 311022
2017-08-16 17:09:00 +00:00