[Clang][NFC] tests showcasing incorrect use of HIP and OpenCL memory scope macros (#188890)
The tests demonstrate how incorrect LLVM IR is generated without
diagnostics, when an OpenCL or HIP scope number is passed to an AMDGPU
intrinsic. #185408 lays the groundwork for properly diagnosing this
situation by internally using a separate enum type to represent each set
of scope numbers.
[bazel] Remove unnecessary textual_hdrs usage (#191072)
textual_hdrs is supposed to be used for header files that aren't
standalone, which isn't the case for these mlir headers. Being in
textual_hdrs excludes them from header parsing, which means
layering_check results aren't entirely valid. I'm going to try and
enable header parsing on these targets in a follow up change.
[libc++] Optionally support filecheck and split-file (#165769)
This patch adds optional support for FileCheck and split-file in
libc++'s test suite. Whether FileCheck / split-file is available
can be queried using Lit features.
This should make it possible to test several things that were
previously impossible to test, especially for specific code
generation.
Supersedes #65917 and #188283
[ObjCARC] Optimize MayAutorelease by skipping over pools (#188583)
This enables the ARC optimizer to remove autoreleasePoolPush/Pop pairs
that were previously retained. By skipping over nested autorelease
pools, MayAutorelease now correctly recognizes that autoreleases
contained within an inner pool do not escape, allowing the removal of
outer pool boundaries.
[AMDGPU] Emit s_barrier_signal for s.barrier.signal.var when able (#191028)
When the member count is 0 (which causes the barrier's member count to
be re-used from a previous barrier initialization or
s.barrier.signal.var) and the barrier is constant, we can represent
named barrier signaling with the m0-less form. Enable this behavior.
Assisted by Opus 4.6 which drafted the initial implementation.
[mlir][XeGPUToXeVM][XeVMToLLVM] Update the default cache-control values. (#190954)
In XeGPU, user can provide cache control value for only certain levels,
they do not have to provide cache-control value for all levels. However,
XeVM requires that each cache level must have a cache-control value. To
solve this issue, XeGPUToXeVM conversion pass adds default value to
cache-levels that does not have a user-provided cache-control value.
This PR updates this process in the following way:
- If no cache-control hint is provided for any levels, use system
default (USE_DEFAULT).
- If any of the levels has at least one cache-control value, use certain
default value for other levels.
If system default (USE_DEFAULT) is used, no cache-control metadata
annotation is necessary.
[libc] Remove yet another batch of header template files (#191067)
This follows up on ae63230c23151c16ba68d5213da8bd5459c03a40 and remove
header templates from more C/POSIX standard headers, where templates
only used to `#include` files with macro definitions. We add this logic
to YAML instead - add entries to the `macros` list that point to the
correct `macro_header` to ensure it would be included.
