[ORC] Clear stale ElemToPendingSN entries in WaitingOnGraph. (#169747)
WaitingOnGraph::processReadyOrFailed was not clearing stale entries from
the ElemToPendingSN map. If symbols were removed from the
ExecutionSession and then re-added this could lead to dependencies on
the stale entries, triggering a use-after-free bug.
https://github.com/llvm/llvm-project/issues/169135
[llvm-objdump] Optimize live element tracking (#158763)
This patch significantly optimizes the LiveElementPrinter
by replacing a slow linear search with efficient hash map
lookups. It refactors the code to use a map-based system
for tracking live element addresses and managing column
assignments, leading to a major performance improvement
for large binaries.
github-upload-release.py: add requirements and lock files for installing dependencies (#169461)
Adds requirements.txt and lock files for installing dependencies for
github-upload-release.py script.
Signed-off-by: Ryan Mast <mast.ryan at gmail.com>
[lld][MachO] Follow-up to use madvise() for threaded file page-in. (#157917)
Further to
https://github.com/llvm/llvm-project/pull/147134#discussion_r2337246489,
switch to use the madvise() api to page in mmap'd files and
1) All new code compiled in #if LLVM_ENABLE_THREADS is set so it can be
seen where the changes were from this PR.
2) The new PR moves to use madvise() instead of the ad-hoc page
referencing code I wrote which should avoid SIGSEGVs if the buffer is
deallocated.
3) A new property SerialBackgroundQueue().stopAllWork to be used to stop
background workers when there is no further call for them. Usually the
background "page-in" threads have completed first but it seems with this
troublesome test this is not always the case and buffers stored in the
static input file cache are being deallocated while being referenced.
---------
Co-authored-by: James Henderson <James.Henderson at sony.com>
[CIR][NFC] Move builtin tests to their own directory (#169737)
This moves all builtin-related CodeGen tests to a new directory,
separate from the main clang/test/CIR/CodeGen directory. This will make
it easier to run the basic CodeGen tests without running the builtin
tests. This is specifically intended to move those tests which include
`immintrin.h` or any of its variants, which take a very long time to
compile with a debug build.
[CIR] Add undef handling to enable global lambdas (#169721)
This change adds undef handling that was needed to enable global
lambdas. There was no lambda-specific code needed, but the global lambda
handling needed to initialize a global with an undef value.
[CIR] Handle undef init of struct
This adds handling for a case where Clang initializes a struct to undef
with a constant copy. This required adding support for undef constants
and lowering undef attributes to LLVM IR.
[libc++] Applied `[[nodiscard]]` to concurrency (partially) (#169463)
`[[nodiscard]]` should be applied to functions where discarding the
return value is most likely a correctness issue.
- https://libcxx.llvm.org/CodingGuidelines.html#apply-nodiscard-where-relevant
The following utilities have been annotated in this patch:
- [x] `<barrier>`
- [x] `<condition_variable>`
- [x] `<latch>`
- [x] `<mutex>`
- [x] `<semaphore>`
- [x] `<thread>`
N.B. Some classes don't provide all specified methods, which were not
annotated.
[libc] Modular printf option (float only)
This adds LIBC_CONF_PRINTF_MODULAR, which causes floating point support
(later, others) to be weakly linked into the implementation.
__printf_modular becomes the main entry point of the implementaiton, an
printf itself wraps __printf_modular. printf it also contains a
BFD_RELOC_NONE relocation to bring in the float aspect.
See issue #146159 for context.
[clang][Driver] Use -no-canonical-prefixes in hip-spirv-backend-opt test (#169717)
Otherwise the test can fail in weirder setups (like ours downstream
where the actual binary path only contains the hash of the object). This
makes the test more resilient, more consistent with other driver tests,
and allows us to assert that the binary is named clang rather than
clang-<some suffix>.
[mlir][acc] Introduce ACCImplicitDeclare pass for globals handling (#169720)
This commit introduces the ACCImplicitDeclare pass to the OpenACC
dialect, complementing ACCImplicitData by handling global variables
referenced in OpenACC compute regions and routines.
Overview:
---------
The pass applies implicit `acc declare` actions to global variables
referenced in OpenACC regions. While the OpenACC spec focuses on
implicit data mapping (handled by ACCImplicitData), implicit declare is
advantageous and required for specific cases:
1. Globals referenced in implicit `acc routine` - Since data mapping
only applies to compute regions, globals in routines must use `acc
declare`.
2. Compiler-generated globals - Type descriptors, runtime names, and
error reporting strings introduced during compilation that wouldn't be
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