[flang][acc] Handle deduplicated use_device (part 2) (#187305)
After https://github.com/llvm/llvm-project/pull/186855 there was still
one additional part of the pass that assumed it was able to erase
acc.use_device. Thus extend the same solution and add test.
[mlir][Transform] Fix crash in SequenceOp::getEffects when body region is empty (#185063)
When walking operations post-order and erasing blocks, the inner body
block of a nested transform.sequence can be erased while the outer op is
still alive. If printAsOperand is called on the outer block at that
point, it triggers verification, which calls SequenceOp::getEffects ->
getPotentialTopLevelEffects -> getBodyBlock() -> Region::front() on an
empty region, causing an assertion failure in ilist_iterator
('\!NodePtr->isKnownSentinel()').
Fix by checking that the body region is non-empty before passing its
front block to detail::getPotentialTopLevelEffects in the
PossibleTopLevelTransformOpTrait.
Fixes #60213
Assisted-by: Claude Code
[LoopFusion] Use DA by default for dependence analysis (#187309)
Loop Fusion includes some internal dependence analysis code. Currently
the pass uses both DA and internal code and chooses the best result. The
goal is to use DA for all dependence analysis requirements in fusion.
This patch changes the default value. Removing the code will be done
separately later.
[libc][docs] Generate configure.rst in the build directory (#187266)
generate_config_doc() was writing configure.rst directly into the source
tree, which fails when building from a read-only source directory (e.g.
when the source is on a read-only filesystem or in a packaging
environment).
The Sphinx build in libc/docs/CMakeLists.txt already copies static .rst
files from the source tree into the build tree so that generated docs
don't pollute the source directory. Move configure.rst generation to
follow this same pattern by writing to LIBC_BUILD_DIR/docs/ instead of
LIBC_SOURCE_DIR/docs/.
This also removes configure.rst from the checked-in source tree, since
it was fully generated content that was being regenerated on every CMake
configure anyway.
