[Clang][Docs] Update OpenMP support status for loop transformations (#182591)
Update loop fusion transformation codegen status to done and add
additional PR links. Mark loop index set splitting parsing as in
progress.
Co-authored-by: Cursor <cursoragent at cursor.com>
AMDGPU: Cleanup the handling of flags in getTgtMemIntrinsic
Some of the flag handling seems a bit inconsistent and dodgy, but this
is meant to be a pure refactoring for now.
commit-id:99911619
RuntimeLibcalls: Fix adding __safestack_pointer_address by default (#182936)
This was accidentally added to the default set of libcalls, so move
it out of the giant let block over functions in the default set.
Should fix regression on SPARC bot.
[lld][MachO] Enable LoopVectorization and SLPVectorization for ThinLTO (#182748)
Commit 21a4710c67a97838dd75cf60ed24da11280800f8 previously enabled
LoopVectorization and SLPVectorization CodeGen options for the ELF and
COFF LTO backends. Since the Mach-O LTO port did not exist at the time,
it missed this configuration.
This patch adds these options to the Mach-O LTO setup for consistency
with the other backends. Without this, SLP and loop vectorization passes
are silently skipped during Mach-O LTO for O2 and O3 builds.
[AArch64][clang][llvm] Add ACLE `stshh` atomic store builtin
Add `__arm_atomic_store_with_stshh` implementation as defined
in the ACLE. Validate that the arguments passed are correct, and
lower it to the stshh intrinsic plus an atomic store with the
allowed orderings.
Gate this on FEAT_PCDPHINT so that availability matches
hardware support for the `STSHH` instruction. Use an i64
immediate and side-effect modeling to satisfy tablegen and decoding.
[bazel] Add missing llc test dep (#182937)
Used by mlir/test/Dialect/X86Vector/dot-bf16.mlir, which seems to not be
running due to some other misconfiguration.
[NFC][IR] Fix MSVC C4706 diagnostic w/ 741b2cda32e1 (#182682)
Fix error:
llvm\include\llvm\IR\Operator.h(279) : error C2220: the following
warning is treated as an error
llvm\include\llvm\IR\Operator.h(279) : warning C4706: assignment within
conditional expression
[openmp] Allow testing OpenMP without a full clang build tree (#182470)
Having a build tree with "not" and "FileCheck" is still required, but if
Clang/Flang isn't configured in that build, run the tests with the same
compiler CMake uses. This is how testing worked in the standalone build
configurations that now have been removed.
RuntimeLibcalls: Fix adding __safestack_pointer_address by default
This was accidentally added to the default set of libcalls, so move
it out of the giant let block over functions in the default set.
Should fix regression on SPARC bot.
[flang] Restrict mem2reg promotion through fir.declare to single-block case (#182933)
The PromotableOpInterface on fir.declare allows mem2reg to promote
allocas accessed through declare ops. However, MLIR's mem2reg computes
defining blocks and live-in sets only from direct users of the slot
pointer. Stores through fir.declare are users of the declare result, not
the alloca, so they are not registered as defining blocks. This causes
missing phi nodes at join points (loop headers, merge blocks), which
silently drops conditional updates to promoted variables.
This was observed in CUDA Fortran kernels where a loop variable updated
conditionally (e.g., mywatch = max(1, mywatch-32)) became constant after
promotion, producing incorrect results at runtime.
The fix restricts promotion through fir.declare to cases where all users
of the declare are in the same block. In single-block cases no phi nodes
are needed, so the MLIR limitation does not apply. Cross-block cases are
left unpromoted until the MLIR mem2reg infrastructure is extended to
track defining blocks through PromotableOpInterface results.
With the current behavior, this would be the result.
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[unittests][Support] Fix FileSystemTest for BSD semantics (#181487)
BSD semantics (also available on Linux with mount -o bsdgroups/grpid)
for file/directory creation are to inherit the group ID from the parent
directory, rather than using the set-group-ID bit. When running these
tests on FreeBSD (and likely other BSDs), temporary files and
directories are created underneath /tmp, which is root:wheel (0:0), and
so they, and all their descendants, have a group of wheel.
For FileSystemTest.RemoveDirectoriesNoExePerm, in order to allow
traversing the directory which has just been made non-executable, i.e.
non-searchable, so that it can be deleted, the test first sets its
permissions to all_perms. However, all_perms is not just the
user/group/owner read/write/execute bits, it also includes the
set-user-ID, set-group-ID and sticky bits. Since the directory on
FreeBSD has a group of wheel, any users not in the wheel group cannot
set the set-group-ID bit, so this will fail with EPERM, leaving the
directory non-executable, and the following removal will fail, due to
the foo child not being searchable, and then the test harness cleanup
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